CN109357379B - Air conditioner control method and device and computer storage medium - Google Patents
Air conditioner control method and device and computer storage medium Download PDFInfo
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- CN109357379B CN109357379B CN201811298525.2A CN201811298525A CN109357379B CN 109357379 B CN109357379 B CN 109357379B CN 201811298525 A CN201811298525 A CN 201811298525A CN 109357379 B CN109357379 B CN 109357379B
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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
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/86—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling compressors within refrigeration or heat pump circuits
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- 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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Abstract
The invention discloses a method and a device for controlling an air conditioner and a computer storage medium, and belongs to the technical field of intelligent household appliances. The method comprises the following steps: acquiring a current humidity value in an air conditioning action area, and acquiring a current absolute humidity difference value between the current humidity value and a target humidity value; when the current absolute humidity difference value meets the set condition matched with the dehumidification mode of the air conditioner, performing PID control operation for the current times according to the current absolute humidity difference value to obtain PID output quantity; determining a first working frequency of the compressor corresponding to the current absolute humidity difference value according to the dehumidification mode of the air conditioner, the maximum working frequency of the compressor corresponding to the dehumidification mode, the obtained actual return working frequency of the compressor and the times corresponding to the PID control; and correcting the first working frequency according to the PID output quantity to obtain the current working frequency of the compressor, and controlling the compressor to operate according to the current working frequency.
Description
Technical Field
The invention relates to the technical field of intelligent household appliances, in particular to a method and a device for controlling an air conditioner and a computer storage medium.
Background
With the improvement of living standard, the air conditioner is a necessary product for daily life of people. The air conditioner may have various functions, such as: refrigeration, heating, dehumidification, purge control, and the like.
At present, the air conditioner can perform relatively accurate control operation according to information such as indoor environment temperature returned by a temperature sensor and the like and a target temperature, so that the running frequency of a compressor of the air conditioner is controlled. However, in some environments with relatively high humidity, the control is performed only according to the temperature, and it is difficult to meet the requirement of the user on the comfort level of the indoor air.
Disclosure of Invention
The embodiment of the invention provides an air conditioner control method, an air conditioner control device and a computer storage medium. The following presents a simplified summary in order to provide a basic understanding of some aspects of the disclosed embodiments. This summary is not an extensive overview and is intended to neither identify key/critical elements nor delineate the scope of such embodiments. Its sole purpose is to present some concepts in a simplified form as a prelude to the more detailed description that is presented later.
According to a first aspect of embodiments of the present invention, there is provided a method of air conditioning control, the method including:
acquiring a current humidity value in an air conditioning action area in a dehumidification mode, and acquiring a current absolute humidity difference value between the current humidity value and a target humidity value;
when the current absolute humidity difference value meets a set condition matched with a dehumidification mode of an air conditioner, carrying out Proportional Integral Derivative (PID) control operation of the current times according to the current absolute humidity difference value to obtain a PID output quantity;
determining a first working frequency of the compressor corresponding to the current absolute humidity difference value according to the dehumidification mode of the air conditioner, the maximum working frequency of the compressor corresponding to the dehumidification mode, the obtained actual return working frequency of the compressor and the times corresponding to the PID control;
and correcting the first working frequency according to the PID output quantity to obtain the current working frequency of the compressor, and controlling the compressor to operate according to the current working frequency.
In an embodiment of the present invention, the performing, according to the current absolute humidity difference, PID control operation for the current number of times, and obtaining the PID output amount includes:
correcting the proportional parameter, the integral parameter and the differential parameter in the PID control operation according to the current absolute humidity difference value, the stored previous absolute humidity difference value and the stored previous absolute humidity difference value to obtain a corrected proportional parameter, a corrected integral parameter and a corrected differential parameter;
correcting the output state value of PID control according to the correction proportion parameter, the correction integral parameter and the correction differential parameter to obtain the current output quantity;
and obtaining the PID output quantity according to the current output quantity and the saved previous output quantity.
In an embodiment of the present invention, when the number of times corresponding to the PID control is zero, the determining the first operating frequency of the compressor corresponding to the current absolute humidity difference includes:
when the compressor of the air conditioner starts to operate at the maximum working frequency of a dehumidification mode and the time when the current absolute humidity difference value is less than or equal to a first set value exceeds a set time, determining the obtained actual return working frequency of the compressor as the first working frequency;
when the compressor of the air conditioner does not operate in a dehumidification mode and the current absolute humidity difference value is smaller than or equal to a first set value and larger than a second set value, determining a first set proportion value of the maximum working frequency as the first working frequency;
wherein the first set value is greater than the second set value.
In an embodiment of the present invention, when the number of times corresponding to the PID control is zero, the determining the first operating frequency of the compressor corresponding to the current absolute humidity difference further includes:
and when the compressor of the air conditioner operates in a dehumidification mode and the current absolute humidity difference value is greater than a second set value, determining a first set proportion value of the maximum working frequency as the first working frequency.
In an embodiment of the present invention, the method further includes:
and when the current absolute humidity difference value is less than or equal to a second set value, controlling the compressor to operate according to the fixed frequency.
According to a second aspect of embodiments of the present invention, there is provided an apparatus for air conditioning control, the apparatus including:
the dehumidification obtaining unit is used for obtaining a current humidity value in an air conditioning action area in a dehumidification mode and obtaining a current absolute humidity difference value between the current humidity value and a target humidity value;
the dehumidification output unit is used for carrying out PID control operation of the current times according to the current absolute humidity difference value to obtain PID output quantity when the current absolute humidity difference value meets the set condition matched with the dehumidification mode of the air conditioner;
a dehumidification determining unit, configured to determine, according to a dehumidification mode of the air conditioner, a maximum operating frequency of a compressor corresponding to the dehumidification mode, an obtained actual return operating frequency of the compressor, and a number of times corresponding to the PID control, a first operating frequency of the compressor corresponding to the current absolute humidity difference;
and the dehumidification control unit is used for correcting the first working frequency according to the PID output quantity to obtain the current working frequency of the compressor and controlling the compressor to operate according to the current working frequency.
In an embodiment of the present invention, the dehumidification output unit is specifically configured to correct a proportional parameter, an integral parameter, and a differential parameter in the PID control operation according to the current absolute humidity difference, the stored previous absolute humidity difference, and the stored previous absolute humidity difference, so as to obtain a corrected proportional parameter, a corrected integral parameter, and a corrected differential parameter; correcting the output state value of PID control according to the correction proportion parameter, the correction integral parameter and the correction differential parameter to obtain the current output quantity; and obtaining the PID output quantity according to the current output quantity and the saved previous output quantity.
In an embodiment of the present invention, the dehumidification determining unit includes:
a dehumidification first determining subunit, configured to determine, when the number of times corresponding to the PID control is zero, a compressor of the air conditioner starts to operate at a maximum operating frequency in a dehumidification mode, and when a time when the current absolute humidity difference is less than or equal to a first set value exceeds a set time, an obtained actual return operating frequency of the compressor as the first operating frequency;
a dehumidification second determining subunit, configured to determine, when the PID control corresponds to zero times, the compressor of the air conditioner is not operating in a dehumidification mode, and the current absolute humidity difference is less than or equal to a first set value and greater than a second set value, a first set proportion value of the maximum operating frequency as the first operating frequency;
wherein the first set value is greater than the second set value.
In an embodiment of the present invention, the dehumidification determining unit further includes:
and the third dehumidification determining subunit is configured to determine, when the PID control corresponds to zero times, the compressor of the air conditioner has been operated in a dehumidification mode, and the current absolute humidity difference is greater than a second set value, the first set proportion value of the maximum operating frequency as the first operating frequency.
In an embodiment of the present invention, the apparatus further includes:
and the fixed control unit is used for controlling the compressor to operate according to the fixed frequency when the current absolute humidity difference value is less than or equal to a second set value.
According to a third aspect of embodiments of the present invention, there is provided an apparatus for air conditioning control, for an air conditioner, the apparatus including:
a processor;
a memory for storing processor-executable instructions;
wherein the processor is configured to:
acquiring a current humidity value in an air conditioning action area in a dehumidification mode, and acquiring a current absolute humidity difference value between the current humidity value and a target humidity value;
when the current absolute humidity difference value meets the set condition matched with the dehumidification mode of the air conditioner, performing PID control operation for the current times according to the current absolute humidity difference value to obtain PID output quantity;
determining a first working frequency of the compressor corresponding to the current absolute humidity difference value according to the dehumidification mode of the air conditioner, the maximum working frequency of the compressor corresponding to the dehumidification mode, the obtained actual return working frequency of the compressor and the times corresponding to the PID control;
and correcting the first working frequency according to the PID output quantity to obtain the current working frequency of the compressor, and controlling the compressor to operate according to the current working frequency.
According to a fourth aspect of embodiments of the present invention, there is provided a computer readable storage medium having stored thereon computer instructions which, when executed by a processor, implement the steps of the above-described method.
The technical scheme provided by the embodiment of the invention has the following beneficial effects:
in the embodiment of the invention, the air conditioner in the dehumidification mode can perform PID control operation according to the current humidity value and the target humidity value in the action area, and determine the working frequency of the compressor, so as to control the compressor of the air conditioner.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the invention, as claimed.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention.
FIG. 1 is a flow chart illustrating a method of controlling an air conditioner according to an exemplary embodiment;
FIG. 2 is a flow chart illustrating a method of controlling an air conditioner according to an exemplary embodiment;
FIG. 3 is a block diagram illustrating an air conditioning control apparatus according to an exemplary embodiment;
fig. 4 is a block diagram illustrating an air conditioning control apparatus according to an exemplary embodiment.
Detailed Description
The following description and the drawings sufficiently illustrate specific embodiments of the invention to enable those skilled in the art to practice them. The examples merely typify possible variations. Individual components and functions are optional unless explicitly required, and the sequence of operations may vary. Portions and features of some embodiments may be included in or substituted for those of others. The scope of embodiments of the invention encompasses the full ambit of the claims, as well as all available equivalents of the claims. Embodiments may be referred to herein, individually or collectively, by the term "invention" merely for convenience and without intending to voluntarily limit the scope of this application to any single invention or inventive concept if more than one is in fact disclosed. Herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed. The embodiments are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. For the structures, products and the like disclosed by the embodiments, the description is relatively simple because the structures, the products and the like correspond to the parts disclosed by the embodiments, and the relevant parts can be just described by referring to the method part.
For some environments with higher humidity, the air conditioner is controlled only according to the temperature, and the requirement of the user on the comfort level of the air in the air conditioning action area is difficult to meet. In the embodiment of the invention, the air conditioner can perform PID control operation according to the current humidity value and the target humidity value in the action area, and determine the working frequency of the compressor, so as to control the compressor of the air conditioner, thereby not only further improving the pertinence and the accuracy of air conditioner control, but also effectively adjusting the humidity in the action area and improving the air comfort level in the action area due to the fact that the air conditioner can adjust the working frequency of the compressor according to the humidity in an environment with higher humidity.
Air conditioners have a variety of operating modes, such as: the air conditioner comprises a dehumidification mode, a refrigeration mode, a heating mode and the like, wherein no matter what mode the air conditioner is in, PID control operation can be carried out according to the current humidity value and the target humidity value in an action area, the working frequency of a compressor is determined, and therefore the compressor of the air conditioner is controlled. The method specifically comprises the following steps: acquiring a current humidity value in an air conditioning action area, and acquiring a current absolute humidity difference value between the current humidity value and a target humidity value; when the current absolute humidity difference value meets the set condition matched with the running mode of the air conditioner, the PID control operation of the current times can be carried out according to the current absolute humidity difference value, and the PID output quantity is obtained; determining a first working frequency of the compressor corresponding to the current absolute humidity difference value according to the running mode of the air conditioner, the maximum working frequency of the compressor corresponding to the running mode, the obtained actual return working frequency of the compressor and the corresponding times of PID control; and then, correcting the first working frequency according to the PID output quantity to obtain the current working frequency of the compressor, and controlling the compressor to operate according to the current working frequency. Wherein, the operation mode includes: a dehumidification mode, a cooling mode, or a heating mode.
In the embodiment of the invention, when the air conditioner is in the dehumidification mode, PID control operation can be carried out according to the current humidity value and the target humidity value in the action area, and the working frequency of the compressor is determined, so that the compressor of the air conditioner is controlled.
Fig. 1 is a flowchart illustrating an air conditioner control method according to an exemplary embodiment. As shown in fig. 1, the process of the air conditioning control includes:
step 101: and acquiring a current humidity value in the air conditioning action area in the dehumidification mode, and acquiring a current absolute humidity difference value between the current humidity value and the target humidity value.
In the embodiment of the invention, the working mode corresponding to the air conditioner is already set to the dehumidification mode, that is, the air conditioner may enter the dehumidification mode or is already in the dehumidification mode to operate.
At this time, the current humidity value in the air conditioning action area may be obtained, and there may be various corresponding manners, for example: and acquiring a current humidity value in the action area through a humidity sensor, or calculating through a temperature value in the action area, a coil temperature value, the working frequency of the compressor and the like to acquire the current humidity value.
Certainly, a target humidity value is configured in advance, the target humidity value can be set manually by a user, and the air conditioner can be obtained according to the configuration after the target humidity value is configured according to the region where the air conditioner is located, the current season and the like.
After the current humidity value and the target humidity value are known, the current absolute humidity difference between the current humidity value and the target humidity value, that is, the current absolute humidity difference Pn is | the current humidity value — the target humidity value |. Where n is the number of times corresponding to PID control, and is an integer such as 0, 1, 2 …, or the like, which is gradually added from 0.
Step 102: and when the current absolute humidity difference value meets the set condition matched with the dehumidification mode of the air conditioner, carrying out the current times of proportional-integral-derivative (PID) control operation according to the current absolute humidity difference value to obtain the PID output quantity.
Since the air conditioner is set to the dehumidification mode, if the current absolute humidity difference is greater than a set value, PID (proportional, integral, derivative) control in the embodiment of the present invention may be performed, and if the current absolute humidity difference is less than or equal to the set value, the compressor may be controlled to operate according to a fixed operating frequency, that is, PID control is not required, and the intrinsic dehumidification mode operation is maintained.
Namely, when the current absolute humidity is larger than the set value, the current absolute humidity difference value can be determined to meet the set condition matched with the dehumidification mode of the air conditioner. At this time, the PID control operation of the current times may be performed according to the current absolute humidity difference to obtain the PID output, which preferably includes: correcting a proportional parameter, an integral parameter and a differential parameter in PID control operation according to the current absolute humidity difference, the stored previous absolute humidity difference and the stored previous absolute humidity difference to obtain a corrected proportional parameter, a corrected integral parameter and a corrected differential parameter; correcting the output state value of PID control according to the corrected proportion parameter, the corrected integral parameter and the corrected differential parameter to obtain the current output quantity; and obtaining the PID output quantity according to the current output quantity and the saved previous output quantity.
In the implementation, the current absolute humidity difference Pn is obtained and then stored, so that the current absolute humidity difference Pn corresponding to each PID control is stored, and thus the previous absolute humidity difference can be Pn-1, and the previous absolute humidity difference can be Pn-2.
Therefore, the current deviation Wn ═ set humidity — indoor humidity | × 10 ═ Pn ═ 10 can be set; the previous deviation Wn-1 ═ Pn-1 × 10 and the previous deviation Wn-2 ═ Pn-2 × 10. Thus, the difference Dn-1 of the previous deviation is equal to Wn-1-Wn-2, while the difference Dn-1 of the current deviation is equal to Wn-Wn-1.
Since the PID control operation is performed according to the humidity, in the PID control, the proportional control amount Hzkp, the integral control amount Hzki, the derivative control amount Hzkd, and the corrected output amount Hzout are output, and the corrected output amount Hzout1 is output in the previous time, so that the filtered output amount Hzoutf, which is the PID output amount in this embodiment, is output.
Wherein, the PID control operation can comprise:
Hzkp＝Kp*Dn；
Hzki＝Ki*Wn；
Hzkd＝Kd*(Dn–Dn-1)；
ΔFn＝Hzkp+Hzki+Hzkd；
Hzout＝Out_gain*ΔFn；
Hzoutf＝(Hzout+(Hzout1*2))/3。
therefore, the PID output amount Hzoutf corresponding to the current absolute humidity difference can be obtained through the PID control operation.
Step 103: and determining the first working frequency of the compressor corresponding to the current absolute humidity difference value according to the dehumidification mode of the air conditioner, the maximum working frequency of the compressor corresponding to the dehumidification mode, the obtained actual return working frequency of the compressor and the corresponding times of PID control.
In the embodiment of the present invention, the operating frequency of the compressor is controlled through PID calculation, specifically, a certain operating frequency of the compressor is corrected according to the PID output quantity Hzoutf, that is, the first operating frequency of the compressor is corrected according to the PID output quantity Hzoutf. The first operating frequency of the compressor may not be completely the same according to different operating conditions of the air conditioner, and therefore, the first operating frequency Sn of the compressor corresponding to the current absolute humidity difference value needs to be determined according to the dehumidification mode of the air conditioner, the maximum operating frequency of the compressor corresponding to the dehumidification mode, the obtained actual return operating frequency of the compressor, and the number of times corresponding to PID control.
In this embodiment, after the air conditioner enters the dehumidification mode, each time PID control is performed, the number of times corresponding to PID control may need to be increased by 1, that is, the number of times n corresponding to PID control starts from 0, and is gradually increased by 1 each time. In general, when n >0, i.e., after the PID control is continuously performed, the acquired actual return operating frequency of the compressor may be determined as the first operating frequency Sn. However, when n is 0, that is, when the PID control corresponds to zero times, the determining of the first operating frequency of the compressor corresponding to the current absolute humidity difference may include: when a compressor of the air conditioner starts to operate at the maximum working frequency of a dehumidification mode and the time when the current absolute humidity difference value is less than or equal to a first set value exceeds a set time, determining the obtained actual return working frequency of the compressor as the first working frequency; when a compressor of the air conditioner does not operate in a dehumidification mode and the current absolute humidity difference value is smaller than or equal to a first set value and larger than a second set value, determining a first set proportion value of the maximum working frequency as a first working frequency; wherein the first set value is greater than the second set value.
For example: the first set value is 4, the second set value is 1.5, and the first set proportion value is 50%. Thus, the air conditioner is powered on and started up for the first time, or the air conditioner is switched to the mode and is just switched to the dehumidification mode, or the air conditioner is started up again after being turned off, at this time, the air conditioner does not operate in the dehumidification mode, and does not perform PID control, that is, the number n of times corresponding to PID control is zero, if P0 is greater than 4, the possible humidity is relatively large, at this time, a compressor of the air conditioner needs to start to operate at the maximum operating frequency of the dehumidification mode immediately, so that the humidity in the environment can be reduced as much as possible, so that the humidity value is slowly reduced, so that when the compressor of the air conditioner is started to operate at the maximum operating frequency of the dehumidification mode, and the time of the current absolute humidity difference value if P0 is less than or equal to 4 exceeds a set duration, for example, for more than 50 seconds, so that the obtained actual return.
Or, the air conditioner is powered on and started up for the first time, or the air conditioner is switched to the mode and is just switched to the dehumidification mode, or the air conditioner is started up again after being shut down, at this time, the air conditioner does not operate in the dehumidification mode, and the PID control is not performed, that is, the number n of times corresponding to the PID control is zero, and if the P0 is more than or equal to 1.5 and less than 4, 50% of the maximum working frequency can be directly determined as the first working frequency Sn.
Of course, when P0<1.5, the set condition matching the dehumidification mode of the air conditioner is not satisfied, that is, whether Pn is 0 or Pn >0, the compressor can be controlled to operate at a fixed operating frequency, that is, the unique dehumidification mode operation is maintained without performing PID control.
Step 104: and correcting the first working frequency according to the PID output quantity to obtain the current working frequency of the compressor, and controlling the compressor to operate according to the current working frequency.
In this embodiment, Fn is Sn + Hzoutf, where Fn is the current operating frequency, Sn is the first operating frequency, and Hzoutf is the PID output. I.e., the current operating frequency is determined based on the first operating frequency and Hzoutf. Therefore, the PID output quantity obtained in step 102 may be changed from the sequence of determining the first operating frequency in step 103, that is, when the current absolute humidity difference value satisfies the setting condition matched with the dehumidification mode of the air conditioner, the first operating frequency may be determined first, and then the PID output quantity is obtained.
And obtaining the current working frequency Sn, and controlling the compressor to operate according to the current working frequency.
Therefore, in the embodiment of the invention, the air conditioner in the dehumidification mode can perform PID control operation according to the current humidity value and the target humidity value in the action area, and determine the working frequency of the compressor, so as to control the compressor of the air conditioner.
For example: immediately after the air conditioner is switched to the dehumidification mode, n is 0, and after the current humidity value is obtained, the obtained current absolute humidity difference P0 is greater than 4, so that the compressor of the air conditioner starts to operate at the maximum operating frequency of the dehumidification mode, and when the time P0 ≦ 4 exceeds a set time, for example, 40S, the obtained actual return operating frequency of the compressor may be determined as the first operating frequency S0, and n is 0, so that the previous absolute humidity difference and the previous absolute humidity difference are none, i.e., 0, and similarly, the output amount hzoutt 1 after the previous output correction is none, at this time, Hzoutf is 0, and then, when the current operating frequency F0 is S0+0, i.e., when n is 0, F0 is S0, the compressor may be controlled to operate according to the current operating frequency.
After the PID control is operated, the number of times corresponding to the PID control needs to be increased by 1, that is, n is 1, at this time, since the air conditioner is already in the dehumidification mode, when P1>1.5 and n >0, the obtained actual return operating frequency of the compressor can be determined as the first operating frequency S1, and at this time, according to the formula in step 102, Hzoutf can be obtained, and then, the current operating frequency F1 is S1+ Hzoutf, that is, the compressor is controlled to operate according to the current operating frequency. Thus, the operation is continued until Pn is less than or equal to 1.5. In this case, the compressor can be directly controlled to operate according to the fixed operating frequency without performing PID control.
Or, immediately after the air conditioner is switched to the dehumidification mode, n is 0, the current absolute humidity difference P0>1.5 obtained after the current humidity value is obtained meets the set condition matched with the dehumidification mode of the air conditioner, and 1.5< P0 ≤ 4, at this time, 50% of the maximum operating frequency is determined as the first operating frequency, n is 0, Hzoutf can be obtained according to the formula in step 102, and then, the current operating frequency F0 is S0+0, that is, the compressor is controlled to operate according to the current operating frequency. After the PID control operation, the number of times corresponding to the PID control needs to be increased by 1, that is, n is 1, at this time, P1>1.5, and n >0, so that the obtained actual return operating frequency of the compressor can be determined as the first operating frequency S1, at this time, Hzoutf can be obtained according to the formula in step 102, and then, the current operating frequency F1 is S1+ Hzoutf, that is, the compressor is controlled to operate according to the current operating frequency. Thus, the operation is continued until Pn is less than or equal to 1.5. In this case, the compressor can be directly controlled to operate according to the fixed operating frequency without performing PID control.
Of course, in another embodiment of the present invention, the air conditioner may also be operated in the dehumidification mode for a period of time, and if the current absolute humidity difference satisfies the set condition matched with the operation mode of the air conditioner, the number of times corresponding to the PID control is zero initially, and determining the first operating frequency of the compressor corresponding to the current absolute humidity difference further includes: and when the compressor of the air conditioner operates in the dehumidification mode and the current absolute humidity difference value is greater than the second set value, determining the first set proportion value of the maximum working frequency as the first working frequency.
For example: the temperature sensor of the air conditioner is ON, that is, the compressor of the air conditioner is operated in the dehumidification mode, and the obtained current absolute humidity difference value is greater than the second set value, it indicates that PID control is available, and the air conditioner is powered ON and started up, or the air conditioner is switched over in mode, and is just switched over to the refrigeration mode, or the air conditioner is started up again after being powered off, and so ON, where n is 0. That is, when the compressor is first turned ON, or turned ON again after the temperature sensor is turned OFF, or turned ON again after the compressor is turned OFF, the PID control is restarted, and n is equal to 0.
Thus, the PID output is obtained from the equation in step 102, and since n is 0, the PID output is also zero. And determining 50% of the maximum working frequency as a first working frequency, then correcting the first working frequency according to the PID output quantity to obtain the current working frequency of the compressor, and controlling the compressor to operate according to the current working frequency. In the later PID control, the acquired actual return working frequency of the compressor can be determined as the first working frequency due to the fact that n is greater than 0, and then the current working frequency of the compressor is obtained and controlled.
The following operational flows are integrated into specific embodiments to illustrate the control method provided by the embodiments of the present disclosure.
In this embodiment, the first set value is 4, the second set value is 2, and the first set ratio value is 50%.
Fig. 2 is a flowchart illustrating an air conditioner control method according to an exemplary embodiment. As shown in fig. 2, the process of the air conditioning control includes:
step 201: and acquiring a current humidity value in the air conditioning action area in the dehumidification mode, and acquiring a current absolute humidity difference Pn between the current humidity value and the target humidity value.
In this embodiment, the humidity sensor obtains a current humidity value in an air conditioning action area, and obtains a current absolute humidity difference value Pn ═ current humidity value-target humidity value |. Where n is the number of times corresponding to PID control, and n is an integer such as 0, 1, 2 …, or the like.
Step 202: determine if Pn >2 is true? If yes, go to step 203, otherwise, go to step 213.
If the current absolute humidity difference Pn >2, it is determined that the current absolute humidity difference satisfies the setting condition matched with the dehumidification mode of the air conditioner, and step 203 may be executed. If Pn is less than or equal to 2, the PID control is not performed and step 213 is executed.
Step 203: and performing the Proportional Integral Derivative (PID) control operation of the current times according to the current absolute humidity difference value to obtain a PID output quantity Hzoutf.
The formula of the process of obtaining Hzoutf may be as described in step 102, and is not described in detail. Where n is 0, Hzoutf is 0.
Step 204: determine whether n is 0? If so, go to step 205, otherwise, go to step 211.
The initial first operating frequency may be determined according to different operating conditions of the compressor, and different Pn.
Step 205: is the air conditioning compressor judged to have been operated in the dehumidification mode? If not, go to step 206, and if so, go to step 209.
Step 206: determine if Pn >4 is true? If yes, go to step 207, otherwise, go to step 208.
Step 207: the compressor is controlled to start operation at the maximum operating frequency of the dehumidification mode. Returning to step 201.
Step 208: the first operating frequency was determined to be 50% of the maximum operating frequency. Proceed to step 212.
Step 209: is the compressor started at the maximum operating frequency of the dehumidification mode? If so, go to step 210, otherwise, go to step 208.
Step 210: determine if Pn ≦ 4 time exceeds 30 s? If yes, go to step 211, otherwise, go back to step 201.
Step 211: the acquired actual return operating frequency of the compressor is determined as a first operating frequency. Proceed to step 212.
Step 212: and correcting the first working frequency according to the PID output quantity to obtain the current working frequency of the compressor, controlling the compressor to operate according to the current working frequency, and controlling n +1 after the PID control.
Step 213: and controlling the compressor to operate according to the fixed frequency.
It can be seen that, in this embodiment, the air conditioner in the dehumidification mode can perform PID control operation according to the current humidity value and the target humidity value in the action area, and determine the operating frequency of the compressor, so as to control the compressor of the air conditioner.
According to the air conditioning control process, an air conditioning control device can be constructed.
Fig. 3 is a block diagram illustrating an air conditioning control apparatus according to an exemplary embodiment. As shown in fig. 3, the apparatus may include: a dehumidification obtaining unit 100, a dehumidification output determination unit 200, a dehumidification determination unit 300, and a dehumidification control unit 400, wherein,
the dehumidification obtaining unit 100 is configured to obtain a current humidity value in an air conditioning action area in the dehumidification mode, and obtain a current absolute humidity difference between the current humidity value and a target humidity value.
And the dehumidification output unit 200 is configured to perform PID control operation for the current times according to the current absolute humidity difference value when the current absolute humidity difference value meets a set condition matched with a dehumidification mode of the air conditioner, so as to obtain a PID output quantity.
And a dehumidification determining unit 300, configured to determine a first operating frequency of the compressor corresponding to the current absolute humidity difference according to the dehumidification mode of the air conditioner and the maximum operating frequency of the compressor corresponding to the dehumidification mode, the obtained actual return operating frequency of the compressor, and the number of times corresponding to PID control.
And the dehumidification control unit 400 is configured to correct the first working frequency according to the PID output quantity to obtain a current working frequency of the compressor, and control the compressor to operate according to the current working frequency.
In an embodiment of the present invention, the dehumidification output unit 200 is specifically configured to correct the proportional parameter, the integral parameter, and the differential parameter in the PID control operation according to the current absolute humidity difference, the stored previous absolute humidity difference, and the stored previous absolute humidity difference, so as to obtain a corrected proportional parameter, a corrected integral parameter, and a corrected differential parameter; correcting the output state value of PID control according to the corrected proportion parameter, the corrected integral parameter and the corrected differential parameter to obtain the current output quantity; and obtaining the PID output quantity according to the current output quantity and the saved previous output quantity.
In an embodiment of the present invention, the dehumidification determination unit 300 includes:
and the first dehumidification determining subunit is used for determining the obtained actual return working frequency of the compressor as the first working frequency when the corresponding times of the PID control are zero, the compressor of the air conditioner starts to operate at the maximum working frequency of the dehumidification mode, and the time when the current absolute humidity difference value is less than or equal to the first set value exceeds the set time.
And the second dehumidification determining subunit is used for determining the first set proportion value of the maximum working frequency as the first working frequency when the corresponding times of the PID control are zero, the compressor of the air conditioner does not operate in the dehumidification mode, and the current absolute humidity difference value is less than or equal to the first set value and greater than the second set value.
Wherein the first set value is greater than the second set value.
In an embodiment of the present invention, the dehumidification determining unit further includes: and the third dehumidification determining subunit is used for determining the first set proportion value of the maximum working frequency as the first working frequency when the corresponding times of the PID control is zero, the compressor of the air conditioner operates in the dehumidification mode, and the current absolute humidity difference value is greater than the second set value.
In an embodiment of the present invention, the apparatus further includes:
and the fixed control unit is used for controlling the compressor to operate according to the fixed frequency when the current absolute humidity difference value is less than or equal to a second set value.
The above-described air conditioning control apparatus will be described below with reference to specific embodiments.
In this embodiment, the first set value is 4, the second set value is 1.5, and the set ratio is 50%.
Fig. 4 is a block diagram illustrating an air conditioning control apparatus according to an exemplary embodiment. As shown in fig. 4, the apparatus may include: the dehumidification unit 100, the dehumidification output unit 200, the dehumidification determination unit 300, and the dehumidification control unit 400 further include a fixed control unit 500, wherein the dehumidification determination unit 300 includes: a dehumidification first determination subunit 310, a dehumidification second determination subunit 320, and a dehumidification third determination subunit 330.
In this way, the dehumidification obtaining unit 100 may first obtain the current humidity value in the air conditioning action region in the dehumidification mode, and obtain the current absolute humidity difference Pn between the current humidity value and the target humidity value. Thus, when Pn >1.5, PID control can be performed. Therefore, the dehumidification output module 200 may perform PID control operation for the current times according to the current absolute humidity difference, and obtain the PID output amount Hzoutf. Where n is 0, Hzoutf is 0.
And when the number of times n corresponding to the PID control is zero, the compressor of the air conditioner starts to operate at the maximum operating frequency of the dehumidification mode, and Pn is less than or equal to 4 and exceeds the set time length, for example, 35s, the dehumidification first determining subunit 310 may determine the acquired actual return operating frequency of the compressor as the first operating frequency.
When the number of times n corresponding to the PID control is zero, the compressor of the air conditioner is not operated in the dehumidification mode, and 1.5< Pn ≦ 4, the dehumidification second determining subunit 320 may determine 50% of the maximum operating frequency as the first operating frequency.
When the number of times n corresponding to the PID control is zero, the compressor of the air conditioner has been operated in the dehumidification mode, and Pn >1.5, the dehumidification third determination subunit 330 may determine 50% of the maximum operating frequency as the first operating frequency.
And when the number of times n corresponding to the PID control is not zero, i.e., greater than zero, the dehumidification determination module 300 may directly determine the actual return operating frequency of the compressor as the first operating frequency.
Accordingly, the dehumidification control module 400 may correct the first operating frequency according to the PID output amount to obtain the current operating frequency of the compressor, and control the compressor to operate according to the current operating frequency. After this PID control, n +1 may be set.
And Pn is less than or equal to 1.5, PID control is not performed, and the fixed control unit 500 may directly control the compressor to operate according to a fixed frequency.
It can be seen that, in this embodiment, the air conditioner in the dehumidification mode can perform PID control operation according to the current humidity value and the target humidity value in the action area, and determine the operating frequency of the compressor, so as to control the compressor of the air conditioner.
In an embodiment of the present invention, an air conditioner control device is provided, which is used for an air conditioner, and is characterized in that the device includes:
a processor;
a memory for storing processor-executable instructions;
wherein the processor is configured to:
acquiring a current humidity value in an air conditioning action area in a dehumidification mode, and acquiring a current absolute humidity difference value between the current humidity value and a target humidity value;
when the current absolute humidity difference value meets the set condition matched with the dehumidification mode of the air conditioner, performing PID control operation for the current times according to the current absolute humidity difference value to obtain PID output quantity;
determining a first working frequency of the compressor corresponding to the current absolute humidity difference value according to the dehumidification mode of the air conditioner, the maximum working frequency of the compressor corresponding to the dehumidification mode, the obtained actual return working frequency of the compressor and the times corresponding to the PID control;
and correcting the first working frequency according to the PID output quantity to obtain the current working frequency of the compressor, and controlling the compressor to operate according to the current working frequency.
An embodiment of the present invention provides a computer-readable storage medium, on which computer instructions are stored, wherein the instructions, when executed by a processor, implement the steps of the above-mentioned method.
As will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, optical storage, and the like) having computer-usable program code embodied therein.
The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
It is to be understood that the present invention is not limited to the procedures and structures described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the invention is limited only by the appended claims.
Claims (10)
1. A method of air conditioning control, the method comprising:
acquiring a current humidity value in an air conditioning action area in a dehumidification mode, and acquiring a current absolute humidity difference value between the current humidity value and a target humidity value;
when the current absolute humidity difference value meets a set condition matched with a dehumidification mode of an air conditioner, carrying out Proportional Integral Derivative (PID) control operation of the current times according to the current absolute humidity difference value to obtain a PID output quantity;
determining a first working frequency of the compressor corresponding to the current absolute humidity difference value according to the dehumidification mode of the air conditioner, the maximum working frequency of the compressor corresponding to the dehumidification mode, the obtained actual return working frequency of the compressor and the times corresponding to the PID control;
and correcting the first working frequency according to the PID output quantity to obtain the current working frequency of the compressor, and controlling the compressor to operate according to the current working frequency.
2. The method of claim 1, wherein said performing a current number of PID control operations based on said current absolute humidity difference to obtain a PID output comprises:
correcting the proportional parameter, the integral parameter and the differential parameter in the PID control operation according to the current absolute humidity difference value, the stored previous absolute humidity difference value and the stored previous absolute humidity difference value to obtain a corrected proportional parameter, a corrected integral parameter and a corrected differential parameter;
correcting the output state value of PID control according to the correction proportion parameter, the correction integral parameter and the correction differential parameter to obtain the current output quantity;
and obtaining the PID output quantity according to the current output quantity and the saved previous output quantity.
3. The method as claimed in claim 1, wherein, when the PID control corresponds to zero times, the determining the first operating frequency of the compressor corresponding to the current absolute humidity difference value comprises:
when the compressor of the air conditioner starts to operate at the maximum working frequency of a dehumidification mode and the time when the current absolute humidity difference value is less than or equal to a first set value exceeds a set time, determining the obtained actual return working frequency of the compressor as the first working frequency;
when the compressor of the air conditioner does not operate in a dehumidification mode and the current absolute humidity difference value is smaller than or equal to a first set value and larger than a second set value, determining a first set proportion value of the maximum working frequency as the first working frequency;
wherein the first set value is greater than the second set value.
4. The method as claimed in claim 3, wherein when the PID control corresponds to zero times, the determining the first operating frequency of the compressor corresponding to the current absolute humidity difference further comprises:
and when the compressor of the air conditioner operates in a dehumidification mode and the current absolute humidity difference value is greater than a second set value, determining a first set proportion value of the maximum working frequency as the first working frequency.
5. An apparatus for air conditioning control, the apparatus comprising:
the dehumidification obtaining unit is used for obtaining a current humidity value in an air conditioning action area in a dehumidification mode and obtaining a current absolute humidity difference value between the current humidity value and a target humidity value;
the dehumidification output unit is used for carrying out PID control operation of the current times according to the current absolute humidity difference value to obtain PID output quantity when the current absolute humidity difference value meets the set condition matched with the dehumidification mode of the air conditioner;
a dehumidification determining unit, configured to determine, according to a dehumidification mode of the air conditioner, a maximum operating frequency of a compressor corresponding to the dehumidification mode, an obtained actual return operating frequency of the compressor, and a number of times corresponding to the PID control, a first operating frequency of the compressor corresponding to the current absolute humidity difference;
and the dehumidification control unit is used for correcting the first working frequency according to the PID output quantity to obtain the current working frequency of the compressor and controlling the compressor to operate according to the current working frequency.
6. The apparatus of claim 5,
the dehumidification output unit is specifically configured to correct the proportional parameter, the integral parameter, and the differential parameter in the PID control operation according to the current absolute humidity difference, the stored previous absolute humidity difference, and the stored previous absolute humidity difference, so as to obtain a corrected proportional parameter, a corrected integral parameter, and a corrected differential parameter; correcting the output state value of PID control according to the correction proportion parameter, the correction integral parameter and the correction differential parameter to obtain the current output quantity; and obtaining the PID output quantity according to the current output quantity and the saved previous output quantity.
7. The apparatus of claim 5, wherein the dehumidification determination unit comprises:
a dehumidification first determining subunit, configured to determine, when the number of times corresponding to the PID control is zero, a compressor of the air conditioner starts to operate at a maximum operating frequency in a dehumidification mode, and when a time when the current absolute humidity difference is less than or equal to a first set value exceeds a set time, an obtained actual return operating frequency of the compressor as the first operating frequency;
a dehumidification second determining subunit, configured to determine, when the PID control corresponds to zero times, the compressor of the air conditioner is not operating in a dehumidification mode, and the current absolute humidity difference is less than or equal to a first set value and greater than a second set value, a first set proportion value of the maximum operating frequency as the first operating frequency;
wherein the first set value is greater than the second set value.
8. The apparatus of claim 7, wherein the dehumidification determination unit further comprises:
and the third dehumidification determining subunit is configured to determine, when the PID control corresponds to zero times, the compressor of the air conditioner has been operated in a dehumidification mode, and the current absolute humidity difference is greater than a second set value, the first set proportion value of the maximum operating frequency as the first operating frequency.
9. An apparatus for controlling an air conditioner, for an air conditioner, the apparatus comprising:
a processor;
a memory for storing processor-executable instructions;
wherein the processor is configured to:
acquiring a current humidity value in an air conditioning action area in a dehumidification mode, and acquiring a current absolute humidity difference value between the current humidity value and a target humidity value;
when the current absolute humidity difference value meets the set condition matched with the dehumidification mode of the air conditioner, performing PID control operation for the current times according to the current absolute humidity difference value to obtain PID output quantity;
determining a first working frequency of the compressor corresponding to the current absolute humidity difference value according to the dehumidification mode of the air conditioner, the maximum working frequency of the compressor corresponding to the dehumidification mode, the obtained actual return working frequency of the compressor and the times corresponding to the PID control;
and correcting the first working frequency according to the PID output quantity to obtain the current working frequency of the compressor, and controlling the compressor to operate according to the current working frequency.
10. A computer-readable storage medium having stored thereon computer instructions, which, when executed by a processor, carry out the steps of the method according to any one of claims 1 to 4.
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Effective date of registration: 20210511 Address after: 266101 Haier Industrial Park, 1 Haier Road, Laoshan District, Shandong, Qingdao Applicant after: QINGDAO HAIER AIR CONDITIONER GENERAL Corp.,Ltd. Applicant after: Haier Zhijia Co.,Ltd. Address before: 266101 Haier Industrial Park, 1 Haier Road, Laoshan District, Shandong, Qingdao Applicant before: QINGDAO HAIER AIR CONDITIONER GENERAL Corp.,Ltd. |