CN115307265A - Humidity control method, device and equipment for constant-temperature dehumidification air conditioner and storage medium - Google Patents

Humidity control method, device and equipment for constant-temperature dehumidification air conditioner and storage medium Download PDF

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CN115307265A
CN115307265A CN202210946340.8A CN202210946340A CN115307265A CN 115307265 A CN115307265 A CN 115307265A CN 202210946340 A CN202210946340 A CN 202210946340A CN 115307265 A CN115307265 A CN 115307265A
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frequency
target
preset
humidity
equal
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CN115307265B (en
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席晨馨
王辉
余伟立
刘欣慧
宋钦勇
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Gree Electric Appliances Inc of Zhuhai
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Gree Electric Appliances Inc of Zhuhai
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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
    • F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/50—Control or safety arrangements characterised by user interfaces or communication
    • F24F11/56—Remote control
    • 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
    • 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
    • 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
    • F24F11/88—Electrical aspects, e.g. circuits
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2110/00—Control inputs relating to air properties
    • F24F2110/10—Temperature
    • 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
    • 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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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Human Computer Interaction (AREA)
  • Fuzzy Systems (AREA)
  • Mathematical Physics (AREA)
  • Thermal Sciences (AREA)
  • Air Conditioning Control Device (AREA)

Abstract

The invention relates to a humidity control method, a device, equipment and a storage medium for a constant-temperature dehumidification air conditioner, which relate to the technical field of air conditioners, and the method comprises the following steps: acquiring a humidity difference between the actual humidity of the target area and a preset target humidity in real time; judging whether the humidity difference value is smaller than or equal to a preset first judgment value or not; if the humidity difference value is smaller than or equal to a preset first judgment value, controlling the compressor to reduce the frequency according to a target reduction rate until the frequency of the compressor reaches a first target frequency; judging whether the humidity difference value is larger than a preset second judgment value or not; and if the humidity difference value is larger than a preset second judgment value, controlling the compressor to perform frequency increase according to a target rising rate until the frequency of the compressor reaches a second target frequency. Therefore, the invention adjusts the running frequency of the compressor by an effective humidity control means to reduce the humidity fluctuation as much as possible to realize constant indoor environment humidity, improve the comfort of the air conditioner and improve the user experience.

Description

Constant-temperature dehumidification air conditioner humidity control method, device, equipment and storage medium
Technical Field
The invention relates to the technical field of air conditioners, in particular to a method, a device, equipment and a storage medium for controlling humidity of a constant-temperature dehumidification air conditioner.
Background
In the dehumidification mode of the air conditioner, the humid air generates condensed water on the surface of the low-temperature evaporator, the humidity of indoor air is reduced along with the refrigeration operation, and the air conditioner achieves the dehumidification purpose through refrigeration. The existing constant temperature dehumidification method is to divide an evaporator into two parts, wherein one part of the evaporator is used for refrigeration to achieve the purpose of dehumidification, and the other part of the evaporator is used for heating (supplementing heat dissipated by refrigeration) to achieve the purpose of constant temperature. How to accurately control the temperature and humidity to reach the target temperature and humidity is an urgent problem to be solved.
Therefore, under the constant temperature dehumidification mode, for the prerequisite of the constant temperature requirement of priority assurance, the indoor environment humidity often fluctuates greatly, and indoor humidity can't be stabilized in setting for humidity range for there is the relatively poor problem of air conditioner travelling comfort.
Disclosure of Invention
The invention provides a humidity control method, a humidity control device, humidity control equipment and a storage medium of a constant-temperature dehumidification air conditioner, and aims to solve the problem of poor comfort caused by large fluctuation of indoor environment humidity in a constant-temperature dehumidification mode in the prior art.
In order to solve the problems, the invention adopts the following technical scheme:
in a first aspect, the present invention provides a humidity control method for a constant temperature dehumidification air conditioner, including:
acquiring a humidity difference between the actual humidity of the target area and a preset target humidity in real time;
judging whether the humidity difference value is smaller than or equal to a preset first judgment value or not;
if the humidity difference value is smaller than or equal to a preset first judgment value, controlling the compressor to reduce the frequency according to a target reduction rate until the frequency of the compressor reaches a first target frequency, wherein the execution times of judging whether the humidity difference value is smaller than or equal to the preset first judgment value are n, and n is an integer larger than or equal to 1; when n =1, the target decreasing rate is equal to a preset decreasing rate, and the first target frequency is a preset lower limit frequency; when n is greater than or equal to 2, the target descent rate satisfies K n ＜K n-1 ，K n For a target descent rate corresponding to the number of executions n, K n-1 The first target frequency satisfies F for the corresponding target descending rate when the execution times is n-1 n ＞F 1 ，F n A first target frequency F corresponding to the execution times n 1 Is a preset lower limit frequency;
judging whether the humidity difference value is larger than a preset second judgment value or not;
if the humidity difference value is larger than a preset second judgment value, controlling the compressor to perform frequency increase according to a target rising rate until the frequency of the compressor reaches a second target frequency, wherein the execution times of judging whether the humidity difference value is larger than the preset second judgment value are n, and n is an integer larger than or equal to 1; when n =1, the target rising rate is equal to a preset rising rate, and the second target frequency is a preset upper limit frequency; when n is greater than or equal to 2, the target rising rate satisfies P n ＜P n-1 ，P n For a corresponding target rise rate when the number of executions is n, P n-1 The second target frequency satisfies H for the corresponding target rising rate when the execution times is n-1 n ＜H 1 ，H n For a second target frequency, H, corresponding to the number of executions n 1 Is a preset upper limit frequency, and satisfies H between the first target frequency and the second target frequency n -F n ＜H n-1 -F n-1 ，H n-1 For the second purpose corresponding to the execution times of n-1Standard frequency, F n-1 The first target frequency corresponding to the execution times of n-1.
The further technical proposal is that when n is more than or equal to 2, the target descending speed K n ＝K n-1 (ii) the target rise rate P n ＝P n-1 /2。
The further technical scheme is that when n is more than or equal to 2, the first target frequency also meets F n-1 ＜F n The second target frequency further satisfies H n ＜H n-1 。
The further technical scheme is that when n is more than or equal to 2, the first target frequency F n ＝(F n-1 +H n-1 )/2。
The further technical proposal is that when n is more than or equal to 2, the second target frequency H n ＝(F n +H n-1 )/2。
According to a further technical scheme, after judging whether the humidity difference value is smaller than or equal to a preset first judgment value, the method further comprises the following steps:
and if the humidity difference value is larger than a preset first judgment value, controlling the operation frequency of the compressor to keep constant, and returning to the step of judging whether the humidity difference value is smaller than or equal to the preset first judgment value.
A further technical solution is that, after determining whether the humidity difference is greater than a preset second determination value, the method further includes:
and if the humidity difference value is smaller than or equal to a preset second judgment value, controlling the running frequency of the compressor to keep constant, and returning to the step of judging whether the humidity difference value is larger than the preset second judgment value.
In a second aspect, the present invention also provides a humidity control device of a thermostatic dehumidifying air-conditioner, comprising means for performing the method according to the first aspect.
In a third aspect, the present invention further provides an electronic device, including a processor, a communication interface, a memory and a communication bus, where the processor, the communication interface, and the memory complete mutual communication through the communication bus;
a memory for storing a computer program;
a processor for implementing the steps of the method of the first aspect when executing the program stored in the memory.
In a fourth aspect, the invention also provides a computer-readable storage medium having stored thereon a computer program which, when executed by a processor, performs the steps of the method of the first aspect.
Compared with the prior art, the technical scheme provided by the embodiment of the invention has the following advantages:
in the embodiment of the invention, firstly, the humidity difference between the actual humidity of a target area and the preset target humidity is obtained in real time; when the humidity difference value is smaller than or equal to a preset first judgment value and the actual humidity representing the target area is lower than the preset target humidity, controlling the compressor to reduce the frequency at a target reduction rate until the frequency of the compressor reaches a first target frequency, so that the dehumidification amount is reduced by reducing the frequency of the compressor to increase the actual humidity of the target area; and when the humidity difference value is larger than the preset second judgment value, which represents that the actual humidity of the target area is higher than the preset target humidity, controlling the compressor to perform frequency increase according to the target increasing rate until the frequency of the compressor reaches a second target frequency, so that the frequency of the compressor is increased to increase the dehumidification amount and reduce the actual humidity of the target area.
The execution times of judging whether the humidity difference value is smaller than or equal to a preset first judgment value is n, wherein n is an integer larger than or equal to 1; when n =1, the target decreasing rate is equal to a preset decreasing rate, and the first target frequency is a preset lower limit frequency; when n is greater than or equal to 2, the target descent rate satisfies K n ＜K n-1 ，K n For a target descent rate corresponding to the number of executions n, K n-1 The first rate is a target descent rate corresponding to the execution times of n-1The target frequency satisfies F n ＞F 1 ，F n For a first target frequency corresponding to the number of executions n, F 1 The lower limit frequency is preset, so that the target descending speed of the compressor is gradually reduced along with continuous logic circulation, and the fluctuation of indoor humidity is relieved;
meanwhile, the execution times of judging whether the humidity difference value is larger than a preset second judgment value is n, wherein n is an integer larger than or equal to 1; when n =1, the target rising rate is equal to a preset rising rate, and the second target frequency is a preset upper limit frequency; when n is greater than or equal to 2, the target rising rate satisfies P n ＜P n-1 ，P n For a corresponding target rise rate when the number of executions is n, P n-1 The second target frequency satisfies H for the corresponding target rising rate when the execution times is n-1 n ＜H 1 ，H n For a second target frequency, H, corresponding to the number of executions n 1 Is a preset upper limit frequency, and satisfies H between the first target frequency and the second target frequency n -F n ＜H n-1 -F n-1 ，H n-1 For a second target frequency corresponding to the number of executions n-1, F n-1 The first target frequency corresponding to the execution times of n-1 is adopted, so that the target ascending rate of the compressor is gradually reduced along with the continuous circulation of the logic, and the fluctuation of the indoor humidity is relieved. Therefore, the invention controls the running frequency of the compressor in a closed loop by judging the humidity difference values, subdivides the control means under each humidity difference value, and finally controls the frequency of the compressor by controlling the target increasing rate and the target decreasing rate of the compressor, so that the target increasing rate and the target decreasing rate of the compressor are gradually reduced along with continuous logic circulation, and H is satisfied between the first target frequency and the second target frequency n -F n ＜H n-1 -F n-1 And the adjustable range of the compressor frequency is gradually reduced, so that the compressor frequency gradually approaches to the optimal compressor frequency in the environment, and the humidity fluctuation condition is relieved.
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.
In order to more clearly illustrate the embodiments or technical solutions in the prior art of the present invention, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious for those skilled in the art to obtain other drawings without inventive labor.
Fig. 1 is a schematic flow chart of a humidity control method for a constant temperature dehumidification air conditioner according to embodiment 1 of the present invention;
fig. 2 is a block diagram of a humidity control device of a constant temperature dehumidification air conditioner according to embodiment 2 of the present invention;
fig. 3 is a schematic structural diagram of an electronic device according to embodiment 3 of the present invention;
fig. 4 to fig. 7 are schematic control flow diagrams of a humidity control method for a constant temperature dehumidification air conditioner according to embodiment 1 of the present invention.
Detailed Description
In order to more fully understand the technical content of the present invention, the technical solution of the present invention will be further described and illustrated with reference to the following specific embodiments, but not limited thereto.
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, embodiments of the present invention. All other embodiments obtained by a person skilled in the art based on the embodiments of the present invention without any inventive step are within the scope of the present invention.
It will be understood that the terms "comprises" and/or "comprising," when used in this specification and the appended claims, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.
It should also be understood that the term "and/or" as used in this specification and the appended claims refers to any and all possible combinations of one or more of the associated listed items and includes such combinations.
Example 1
Referring to fig. 1, fig. 1 is a schematic flow chart of a humidity control method for a constant temperature dehumidification air conditioner according to embodiment 1 of the present invention. The method is applied to the controller. Specifically, as shown in FIG. 1, the method includes the following steps S101-S105.
S101, acquiring a humidity difference value between the actual humidity of the target area and the preset target humidity in real time.
Specifically, a humidity difference value between the actual humidity of the target area and the preset target humidity is detected in real time through a humidity sensor, then the processor acquires the humidity difference value between the actual humidity of the target area and the preset target humidity uploaded by the humidity sensor in real time, and records the running frequency of the compressor in real time.
And S102, judging whether the humidity difference value is smaller than or equal to a preset first judgment value.
Specifically, the processor judges whether the humidity difference value is smaller than or equal to a preset first judgment value in real time. Wherein, every judgment in the method obeys the following conditions: (1) defaulting that a target area is in a high-temperature high-humidity environment when a constant-temperature dehumidification mode is started; (2) the preset upper limit frequency of constant-temperature dehumidification is less than or equal to the refrigeration lower limit frequency, and (3) when the humidity change of a target area is 3%, the judgment is started, so that the influence on the service life of a compressor and the humidity fluctuation caused by frequent judgment is avoided; (4) the next judgment is carried out after the compressor is subjected to frequency increasing or frequency reducing stabilization for 30s each time.
S103, if the humidity difference value is smaller than or equal to a preset first judgment value, controlling the compressor to reduce the frequency according to a target reduction rate until the frequency of the compressor reaches a first target frequency.
Specifically, when the humidity difference is smaller than or equal to a preset first judgment value which represents that the actual humidity of the target area is lower than a preset target humidity, the compressor is controlled by the processor to reduce the frequency at a target reduction rate until the pressure is reducedThe frequency of the compressor reaches the first target frequency, such that the actual humidity of the target area is increased by decreasing the frequency of the compressor to reduce the amount of dehumidification. The execution times of judging whether the humidity difference value is smaller than or equal to a preset first judgment value is n, wherein n is an integer larger than or equal to 1; when n =1, the target decreasing rate is equal to a preset decreasing rate, and the first target frequency is a preset lower limit frequency; when n is greater than or equal to 2, the target descent rate satisfies K n ＜K n-1 ，K n For a target descent rate corresponding to the number of executions n, K n-1 The first target frequency satisfies F for the corresponding target descending rate when the execution times is n-1 n ＞F 1 ，F n For a first target frequency corresponding to the number of executions n, F 1 The lower limit frequency is preset so that the target compressor descent rate is gradually reduced as the logic is continuously cycled, thereby slowing down the fluctuation of the indoor humidity.
In one embodiment, after determining whether the humidity difference value is less than or equal to a preset first determination value, the method further includes:
and if the humidity difference value is larger than a preset first judgment value, controlling the operation frequency of the compressor to keep constant, and returning to the step of judging whether the humidity difference value is smaller than or equal to the preset first judgment value.
Specifically, if the humidity difference is greater than a preset first determination value, which represents that the actual humidity of the target area is reduced but the humidity difference is not lower than the first determination value, the operation frequency of the compressor is controlled to be kept constant, and the step of determining whether the humidity difference is less than or equal to the preset first determination value is returned to continue the determination.
In one embodiment, when n is greater than or equal to 2, the target decreasing rate K n ＝K n-1 /2。
Specifically, when n is 2 or more, the target lowering rate K is set to n ＝K n-1 (iv) so that the target descent rate satisfies K n ＜K n-1 。
And S104, judging whether the humidity difference value is larger than a preset second judgment value.
Specifically, after the compressor reduces the frequency to increase the actual humidity of the target area in the step S103, the processor determines whether the humidity difference is greater than a preset second determination value in real time, where the preset second determination value is greater than the preset first determination value.
And S105, if the humidity difference value is larger than a preset second judgment value, controlling the compressor to perform frequency increase according to a target rising rate until the frequency of the compressor reaches a second target frequency.
Specifically, when the humidity difference is greater than a preset second determination value, and at this time, the actual humidity representing the target area is higher than the preset target humidity, the processor controls the compressor to perform frequency increase at the target increasing rate until the frequency of the compressor reaches a second target frequency, so that the frequency of the compressor is increased to increase the dehumidification amount, and the actual humidity of the target area is reduced. The execution times of judging whether the humidity difference value is larger than a preset second judgment value is n, wherein n is an integer larger than or equal to 1; when n =1, the target rising rate is equal to a preset rising rate, and the second target frequency is a preset upper limit frequency; when n is greater than or equal to 2, the target rising rate satisfies P n ＜P n-1 ，P n For a target rise rate, P, corresponding to n execution times n-1 The second target frequency satisfies H for the corresponding target rising rate when the execution times is n-1 n ＜H 1 ，H n A second target frequency H corresponding to the execution times n 1 Is a preset upper limit frequency, and satisfies H between the first target frequency and the second target frequency n -F n ＜H n-1 -F n-1 ，H n-1 For a second target frequency corresponding to the number of executions n-1, F n-1 The first target frequency corresponding to the execution times of n-1 is adopted, so that the target ascending rate of the compressor is gradually reduced along with the continuous circulation of the logic, and the fluctuation of the indoor humidity is relieved.
In one embodiment, when n is greater than or equal to 2, the target rising rate P n ＝P n-1 /2。
Specifically, when n is 2 or more, the target rising rate P is increased n ＝P n-1 (iii) such that the target rise rate satisfies P n ＜P n-1 。
In one embodiment, when n is greater than or equal to 2, the first target frequency further satisfies F n-1 ＜F n The second target frequency further satisfies H n ＜H n-1 。
Specifically, when n is 2 or more, F is satisfied at the first target frequency n ＞F 1 On the basis of (2), the first target frequency also satisfies F n-1 ＜F n While satisfying H at the second target frequency n ＜H 1 On the basis of the first target frequency, the second target frequency also satisfies H n ＜H n-1 The first target frequency is larger and the second target frequency is smaller as the logic is cycled, so that the adjustable range of the compressor frequency is reduced continuously.
In one embodiment, when n is greater than or equal to 2, the first target frequency F n ＝(F n-1 +H n-1 ) /2, the second target frequency H n ＝(F n +H n-1 )/2。
Specifically, when n is 2 or more, how to make the first target frequency also satisfy F n-1 ＜F n By defining said first target frequency F n ＝(F n-1 +H n-1 ) /2 how to make said second target frequency satisfy H n ＜H n-1 By defining said second target frequency H n ＝(F n +H n-1 ) And/2, and making each stable operation stage compressor frequency related to the front stage compressor frequency.
In an embodiment, after determining whether the humidity difference is greater than a second predetermined value, the method further includes:
and if the humidity difference value is smaller than or equal to a preset second judgment value, controlling the running frequency of the compressor to keep constant, and returning to the step of judging whether the humidity difference value is larger than the preset second judgment value.
Specifically, after the frequency of the compressor reaches the first target frequency, the indoor humidity rises but the humidity difference value is not greater than the preset second determination value, the operation frequency of the compressor is controlled to be kept constant until the humidity difference value is greater than the preset second determination value.
In an embodiment, after determining whether the humidity difference is greater than a second predetermined value, the method further includes:
if the humidity difference is smaller than a preset second determination value and smaller than a preset first determination value, controlling the compressor to carry out frequency reduction according to 1/2 times of the reduction rate used in last frequency reduction until reaching 1/2 times of the sum of the frequency of the previous stable operation and a preset lower limit frequency, and returning to the step of determining whether the humidity difference is larger than the preset second determination value.
And if the humidity difference value is smaller than or equal to a preset second judgment value and larger than a preset first judgment value, controlling the running frequency of the compressor to keep constant.
Specifically, after the frequency of the compressor reaches the first target frequency, the indoor humidity rises but the humidity difference is not greater than the preset second determination value, and besides the mode of controlling the operation frequency of the compressor to be kept constant until the humidity difference is greater than the preset second determination value, the compressor can be controlled to further reduce the frequency, so that the indoor humidity rises quickly until the humidity difference is greater than the preset first determination value. And when the humidity difference value is smaller than or equal to a preset second judgment value and larger than a preset first judgment value, representing that the indoor humidity rises but the humidity difference value is not larger than the preset second judgment value, controlling the running frequency of the compressor to keep constant.
In an embodiment, if the humidity difference is greater than a preset second determination value, the method further includes controlling the compressor to perform frequency increase at a target increasing rate until the frequency of the compressor reaches a second target frequency:
further judging whether the humidity difference value is larger than a preset second judgment value or not;
if the humidity difference value is larger than a preset second judgment value, controlling the compressor to perform frequency increasing according to 1/2 times of the increasing rate used by the last frequency increasing until the sum of 1/2 times of the frequency of the previous stable operation and a preset upper limit frequency;
and if the humidity difference value is smaller than or equal to a preset second judgment value, controlling the running frequency of the compressor to keep constant.
Specifically, the step of further determining whether the humidity difference value is greater than a preset second determination value is performed after performing the step of determining whether the humidity difference value is greater than the preset second determination value every 1 time, so as to further increase the frequency of the compressor to dehumidify as soon as possible when the frequency of the compressor reaches a second target frequency but the indoor humidity is still high. When the humidity difference is greater than a preset second determination value, which means that when the frequency of the compressor reaches the second target frequency but the indoor humidity is still high, the frequency of the compressor needs to be further increased, and the further increased frequency of the compressor is used as a new second target frequency. And when the humidity difference value is smaller than or equal to a preset second judgment value, and the indoor humidity is continuously reduced but not reduced to be smaller than or equal to a preset first judgment value, controlling the running frequency of the compressor to keep constant.
The following is a specific control flow in an embodiment, in which, assuming that the preset first determination value is-5%, assuming that the preset second determination value is 5%, assuming that the target area is indoor, the actual humidity of the target area is the indoor humidity, and the humidity difference between the indoor humidity and the preset target humidity is Δ RH:
firstly, starting an air conditioner constant temperature dehumidification mode, preferentially ensuring that the indoor temperature reaches the target temperature according to refrigeration control logic, and continuously reducing the indoor humidity at the moment;
entering a first stage for judging:
when-5% < delta RH, namely the humidity difference is greater than a preset first judgment value, controlling the operation frequency of the compressor to be kept constant, and returning to the step of judging whether the humidity difference is less than or equal to the preset first judgment value (because the constant-temperature dehumidification mode is started, the indoor humidity is reduced but the humidity difference is not reduced to the first judgment value, the compressor keeps constant frequency);
when-5% or more of delta RH, namely when the humidity difference is judged to be smaller than or equal to a preset first judgment value for the first time (at the moment, n is equal to 1), controlling the compressor to perform frequency reduction according to a preset reduction rate until the frequency of the compressor reaches a preset lower limit frequency (at the moment, the indoor humidity is continuously reduced, when the indoor humidity is far lower than the target humidity, the frequency of the compressor is reduced to the preset lower limit frequency, reducing the dehumidification capacity, enabling the indoor humidity to rise, and entering a second stage frequency reduction judgment after the compressor stably operates).
And the second stage is judgment:
when the Δ RH is less than or equal to 5%, that is, the humidity difference is less than or equal to a preset second determination value, controlling the operation frequency of the compressor to be kept constant, and returning to the step of determining whether the humidity difference is greater than the preset second determination value (the indoor humidity increases but the humidity difference does not increase to the second determination value, the compressor keeps the constant frequency, and continuously and cyclically performing the step of determining whether the humidity difference is greater than the preset second determination value);
when delta RH is more than 5 percent, namely n is equal to 1 at the moment, the humidity difference value is judged to be larger than a preset second judgment value for the first time, the compressor is controlled to carry out frequency increasing according to a preset increasing rate until the frequency of the compressor reaches a preset upper limit frequency (the indoor humidity continuously increases, when the indoor humidity is far higher than the target humidity, namely the humidity difference value is larger than the preset second judgment value, the compressor is increased to the preset upper limit frequency, the dehumidification capacity is increased, the indoor humidity is reduced, and the compressor enters a third stage judgment after the frequency increasing is stably operated).
And a third stage of judgment:
when the humidity difference value is judged to be larger than a preset first judgment value for the nth time (at the moment, n is larger than or equal to 2), controlling the running frequency of the compressor to be kept constant, and returning to the step of judging whether the humidity difference value is smaller than or equal to the preset first judgment value (the indoor humidity is reduced, but the humidity difference value is not reduced to the first judgment value, and the compressor keeps constant frequency);
when-5%. Gtoreq.Δ RH, i.e., the nth time (when n is 2 or more), it is judged that the humidity difference is less than or equal to the predetermined valueWhen a first judgment value is set, the compressor is controlled to decrease at a target rate K n ＝K n-1 (ii)/2, the frequency is reduced until the frequency of the compressor reaches a first target frequency F n ＝(F n-1 +H n-1 ) 2 (when the indoor humidity is reduced continuously and is far lower than the target humidity, the compressor reduces the frequency to reduce the dehumidification capacity and increase the indoor humidity).
The fourth stage of judgment:
and when the delta RH is less than or equal to 5 percent, namely the humidity difference value is less than or equal to a preset second judgment value, controlling the operation frequency of the compressor to keep constant, and returning to the step of judging whether the humidity difference value is greater than the preset second judgment value (the compressor reduces the frequency, the indoor humidity rises but the humidity difference value does not rise to the second judgment value, and controlling the operation frequency of the compressor to keep constant).
When the delta RH is more than 5 percent, namely the humidity difference value is more than a preset second judgment value for the nth time (at the moment, n is more than or equal to 2), controlling the compressor to increase at a target rising rate P n ＝P n-1 2 raising the frequency until the frequency of the compressor reaches a second target frequency H n ＝(F n +H n-1 ) And/2 (at this time, the indoor humidity continuously rises, the humidity difference value rises to the second judgment value, the compressor is enabled to increase the frequency so as to reduce the indoor humidity until the humidity difference value falls to the first judgment value, and the third stage, the fourth stage and the third stage are circulated).
As shown in fig. 4 to 7, the following is a specific control flow under another embodiment, including the following steps S201 to S217, wherein if the preset first determination value is-5%, and if the preset second determination value is 5%, and if the target area is indoor, the actual humidity of the target area is indoor humidity, and the humidity difference between the indoor humidity and the preset target humidity is Δ RH:
firstly, starting an air conditioner constant-temperature dehumidification mode, preferentially ensuring that the indoor temperature reaches a target temperature according to refrigeration control logic, and continuously reducing the indoor humidity at the moment;
entering a first stage for judging:
s201, judging whether the humidity difference value is less than or equal to-5% for the first time;
s202, when the-5% < delta RH, controlling the operation frequency of the compressor to keep constant, and returning to the step of judging whether the humidity difference value is less than or equal to-5% for the first time.
Specifically, since the constant temperature dehumidification mode is turned on, the indoor humidity is decreased but the humidity difference is not decreased to the first determination value, and when-5% < Δ RH, that is, when the humidity difference is greater than the preset first determination value, the compressor operation frequency is controlled to be kept constant.
S203, when the ratio of minus 5 percent to delta RH is larger than or equal to delta RH, controlling the compressor to perform frequency reduction according to a preset reduction rate until the frequency of the compressor reaches a preset lower limit frequency.
Specifically, at this time, the indoor humidity is continuously reduced, when the indoor humidity is far lower than the target humidity, that is, when it is determined that the humidity difference is smaller than or equal to a preset first determination value for the first time (at this time, n is equal to 1), the compressor is controlled to reduce the frequency to a preset lower limit frequency, the dehumidification amount is reduced, the indoor humidity is increased, and the compressor enters the second stage of determination after the frequency is reduced and the compressor stably operates.
And the second stage is judgment:
s204, judging whether the humidity difference value is larger than 5% for the first time;
s205, when the delta RH is less than or equal to 5%, controlling the operation frequency of the compressor to be kept constant, and returning to the step of judging whether the humidity difference value is greater than 5% for the first time.
Specifically, when Δ RH is less than or equal to 5%, that is, the humidity difference is less than or equal to a preset second determination value, the indoor humidity increases but the humidity difference does not increase to the second determination value, the compressor maintains a constant frequency, and the cycle is continued to determine whether the humidity difference is greater than the preset second determination value.
S206, when the delta RH is larger than 5%, controlling the compressor to perform frequency increasing according to a preset increasing rate until the frequency of the compressor reaches a preset upper limit frequency.
Specifically, when Δ RH > 5%, that is, when it is determined that the humidity difference is greater than the preset second determination value for the first time (at this time, n is equal to 1), the indoor humidity continuously rises, the compressor is controlled to increase the frequency to the preset upper limit frequency, the dehumidification amount is increased, the indoor humidity is reduced, and the third stage determination is performed after the compressor stably operates by increasing the frequency.
And a third stage of judgment:
s207, judging whether the humidity difference value is less than or equal to-5%;
specifically, the nth time at this time is to judge whether the humidity difference is less than or equal to-5%, wherein n is greater than or equal to 2.
S208, when the-5% < delta RH, controlling the operation frequency of the compressor to keep constant, and returning to the step of judging whether the humidity difference value is less than or equal to-5%.
Specifically, when the indoor humidity is reduced but the humidity difference is not reduced to the first determination value at this time, and the nth time (at this time, n is greater than or equal to 2) is determined that the humidity difference is greater than the preset first determination value, the compressor is controlled to maintain the constant frequency.
S209, when-5% is more than or equal to delta RH, controlling the compressor to carry out frequency reduction according to 1/2 times of the reduction rate used by the last frequency reduction until the sum of the frequencies of the previous 2 times of stable operation is reached, wherein the frequency is 1/2 times of the sum of the frequencies of the previous 2 times of stable operation.
Specifically, at this time, the indoor humidity is continuously decreased, and when the indoor humidity is far lower than the target humidity, that is, when the humidity difference is determined to be less than or equal to the preset first determination value for the nth time (at this time, n is greater than or equal to 2), the compressor is controlled to reduce the frequency to 1/2 times of the sum of the frequencies of the previous 2 times of stable operation, so as to reduce the dehumidification rate and increase the indoor humidity.
The fourth stage of judgment:
s210, further judging whether the humidity difference value is less than or equal to-5%;
and A, judgment: s211, when the delta RH is less than or equal to minus 5 percent, controlling the compressor to perform frequency reduction according to 1/2 time of the reduction rate used by the last frequency reduction until 1/2 time of the sum of the frequency of the previous stable operation and the preset lower limit frequency, and returning to the step of further judging whether the humidity difference is less than or equal to minus 5 percent.
Specifically, the compressor is used for reducing the frequency to enable the indoor humidity to rise but the humidity difference value does not rise to a second determination value, the compressor continues to reduce the frequency and stably operates, then the compressor is circulated to determine whether the humidity difference value is larger than the preset second determination value or not until delta RH is greater than-5%, and then B determination is started.
S212, if the delta RH is > -5%, judging whether the humidity difference value is larger than minus 5% and smaller than or equal to 5%;
b, judgment: s213, when the delta RH is more than minus 5 percent and less than or equal to 5 percent, controlling the running frequency of the compressor to keep constant, and returning to the step of judging whether the humidity difference value meets the conditions that the delta RH is more than minus 5 percent and less than or equal to 5 percent.
Specifically, at this time, the indoor humidity continuously rises, but the humidity difference value does not rise to the second determination value, the compressor keeps constant frequency, and the compressor cyclically determines whether the humidity difference value is greater than the preset second determination value until Δ RH is greater than 5%, and starts to perform the C determination.
C, judgment: s214, when the delta RH is larger than 5%, controlling the compressor to perform frequency raising according to the frequency raising rate used by 1/2 times of the last frequency raising until the sum of the frequencies of 2 times of stable operation before reaching 1/2 times.
Specifically, at this time, the indoor humidity is continuously increased, the humidity difference value is increased to a second determination value, that is, when it is determined that the humidity difference value is greater than the preset second determination value for the nth time (at this time, n is greater than or equal to 2), the target increasing rate of the compressor is increased by 1/2 times of the frequency increasing rate used for the last frequency increasing until the sum of the frequencies of the previous 2 times of stable operation is 1/2 times, and the D determination is performed after the frequency increasing and stable operation of the compressor.
D, judging:
s215, further judging whether the humidity difference value is larger than 5%;
s216, when the delta RH is less than or equal to 5%, controlling the operation frequency of the compressor to be kept constant, and returning to the step of judging whether the humidity difference value is less than or equal to-5%;
specifically, at this time, the indoor humidity is continuously decreased, but the humidity difference is not decreased to the first determination value, the compressor maintains a constant frequency, and the cycle of the third stage-the fourth stage-the third stage determination is started.
S217, when the delta RH is more than 5 percent, controlling the compressor to perform frequency increasing according to 1/2 times of the increasing rate used by the last frequency increasing until the sum of the frequency of the previous stable operation and the preset upper limit frequency reaches 1/2 times, and returning to the step of further judging whether the humidity difference is more than 5 percent.
Specifically, when the Δ RH is greater than 5%, that is, the humidity difference is greater than a preset second determination value, the compressor is controlled to perform frequency increase at a rate of 1/2 times the last frequency increase until the sum of the frequency of the previous stable operation, which is 1/2 times the previous frequency increase, and a preset upper limit frequency is reached, the compressor is cycled after the frequency increase is performed stably, the compressor operation frequency is kept at a constant frequency until the Δ RH is less than or equal to 5%, and the cycle of the third stage-the fourth stage-the third stage determination is started.
Specifically, the invention controls the running frequency of the compressor in a closed loop by judging the humidity difference values, subdivides the control means under each humidity difference value, and finally controls the frequency of the compressor by controlling the target rising rate and the target falling rate of the compressor, so that the target rising rate and the target falling rate of the compressor are gradually reduced along with continuous logic circulation, thereby slowing the fluctuation of indoor humidity, and satisfying H between the first target frequency and the second target frequency when the indoor humidity is continuously circulated along with the continuous logic circulation n -F n ＜H n-1 -F n-1 And the frequency of each stable operation section compressor is related to the frequency of the front section compressor, so that the adjustable range of the frequency of the compressor is gradually reduced, the frequency of the compressor gradually approaches to the optimal frequency of the compressor in the environment, and the fluctuation condition of the humidity is relieved.
Example 2
As shown in fig. 2, an embodiment of the present invention further provides a constant temperature dehumidification air-conditioning humidity control apparatus 400, where the constant temperature dehumidification air-conditioning humidity control apparatus 400 includes a first obtaining unit 401, a first determining unit 402, a first control unit 403, a second determining unit 404, and a second control unit 405.
A first obtaining unit 401, configured to obtain a humidity difference between an actual humidity of a target area and a preset target humidity in real time;
a first judging unit 402, configured to judge whether the humidity difference is smaller than or equal to a preset first judgment value;
a first control unit 403 for controlling the compressor if the humidity difference is less than or equal to a preset first determination valuePerforming frequency reduction according to a target reduction rate until the frequency of the compressor reaches a first target frequency, wherein the execution times for judging whether the humidity difference value is less than or equal to a preset first judgment value are n, and n is an integer greater than or equal to 1; when n =1, the target decreasing rate is equal to a preset decreasing rate, and the first target frequency is a preset lower limit frequency; when n is greater than or equal to 2, the target descent rate satisfies K n ＜K n-1 ，K n For a target descent rate corresponding to the number of executions n, K n-1 The first target frequency satisfies F for the corresponding target descending rate when the execution times is n-1 n ＞F 1 ，F n For a first target frequency corresponding to the number of executions n, F 1 Is a preset lower limit frequency;
a second determination unit 404, configured to determine whether the humidity difference is greater than a preset second determination value;
a second control unit 405, configured to control the compressor to perform frequency up-conversion according to a target up-conversion rate if the humidity difference is greater than a preset second determination value until the frequency of the compressor reaches a second target frequency, where the execution frequency of determining whether the humidity difference is greater than the preset second determination value is n, and n is an integer greater than or equal to 1; when n =1, the target rising rate is equal to a preset rising rate, and the second target frequency is a preset upper limit frequency; when n is greater than or equal to 2, the target rising rate satisfies P n ＜P n-1 ，P n For a corresponding target rise rate when the number of executions is n, P n-1 The second target frequency satisfies H for the corresponding target rising rate when the execution times is n-1 n ＜H 1 ，H n A second target frequency H corresponding to the execution times n 1 Is a preset upper limit frequency, and H is satisfied between the first target frequency and the second target frequency n -F n ＜H n-1 -F n-1 ，H n-1 For a second target frequency corresponding to the number of executions n-1, F n-1 The first target frequency corresponding to the execution times of n-1.
In one embodiment, when n is greater than or equal to 2, the target is lowerRate of decrease K n ＝K n-1 (iv) the target rise rate P n ＝P n-1 /2。
In one embodiment, when n is greater than or equal to 2, the first target frequency further satisfies F n-1 ＜F n The second target frequency further satisfies H n ＜H n-1 。
In one embodiment, when n is greater than or equal to 2, the first target frequency F n ＝(F n-1 +H n-1 )/2。
In one embodiment, when n is greater than or equal to 2, the second target frequency H n ＝(F n +H n-1 )/2。
In one embodiment, after determining whether the humidity difference value is less than or equal to a preset first determination value, the method further includes:
and if the humidity difference value is larger than a preset first judgment value, controlling the operation frequency of the compressor to keep constant, and returning to the step of judging whether the humidity difference value is smaller than or equal to the preset first judgment value.
In an embodiment, after determining whether the humidity difference is greater than a second predetermined value, the method further includes:
and if the humidity difference value is smaller than or equal to a preset second judgment value, controlling the operation frequency of the compressor to keep constant, and returning to the step of judging whether the humidity difference value is larger than the preset second judgment value.
Example 3
Referring to fig. 3, an embodiment of the present invention further provides an electronic device, which includes a processor 111, a communication interface 112, a memory 113, and a communication bus 114, where the processor 111, the communication interface 112, and the memory 113 complete mutual communication through the communication bus 114.
A memory 113 for storing a computer program;
and a processor 111 for executing the program stored in the memory 113 to implement the humidity control method of the constant temperature dehumidification air conditioner as provided in embodiment 1.
Embodiments of the present invention further provide a computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by the processor 111, implements the steps of the humidity control method of the constant temperature dehumidification air conditioner as provided in embodiment 1.
It is noted that, in this document, 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 necessarily 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, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrases "comprising a," "8230," "8230," or "comprising" does not exclude the presence of additional like elements in a process, method, article, or apparatus that comprises the element.
The foregoing are merely exemplary embodiments of the present invention, which enable those skilled in the art to understand or practice the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (10)

1. A humidity control method for a constant-temperature dehumidification air conditioner is characterized by comprising the following steps:
acquiring a humidity difference value between the actual humidity of the target area and the preset target humidity in real time;
judging whether the humidity difference value is smaller than or equal to a preset first judgment value or not;
if the humidity difference value is less than or equal to a preset first judgment valueIf the humidity difference value is less than or equal to a preset first judgment value, the execution times of judging whether the humidity difference value is less than or equal to the preset first judgment value is n, and n is an integer greater than or equal to 1; when n =1, the target decreasing rate is equal to a preset decreasing rate, and the first target frequency is a preset lower limit frequency; when n is greater than or equal to 2, the target descent rate satisfies K n ＜K n-1 ，K n For a target descent rate corresponding to the number of executions n, K n-1 The first target frequency satisfies F for the corresponding target descending rate when the execution times is n-1 n ＞F 1 ，F n For a first target frequency corresponding to the number of executions n, F 1 Is a preset lower limit frequency;
judging whether the humidity difference value is larger than a preset second judgment value or not;
if the humidity difference value is larger than a preset second judgment value, controlling the compressor to perform frequency increase according to a target rising rate until the frequency of the compressor reaches a second target frequency, wherein the execution times of judging whether the humidity difference value is larger than the preset second judgment value are n, and n is an integer larger than or equal to 1; when n =1, the target rising rate is equal to a preset rising rate, and the second target frequency is a preset upper limit frequency; when n is greater than or equal to 2, the target rising rate satisfies P n ＜P n-1 ，P n For a corresponding target rise rate when the number of executions is n, P n-1 The second target frequency satisfies H for the corresponding target rising rate when the execution times is n-1 n ＜H 1 ，H n A second target frequency H corresponding to the execution times n 1 Is a preset upper limit frequency, and satisfies H between the first target frequency and the second target frequency n -F n ＜H n-1 -F n-1 ，H n-1 For a second target frequency corresponding to the number of executions n-1, F n-1 The first target frequency corresponding to the execution times of n-1.
2. The constant temperature dehumidifying air conditioner of claim 1The humidity control method is characterized in that when n is more than or equal to 2, the target descending speed K n ＝K n-1 (ii) the target rise rate P n ＝P n-1 /2。
3. The humidity control method of claim 1, wherein when n is greater than or equal to 2, the first target frequency further satisfies F n-1 ＜F n The second target frequency further satisfies H n ＜H n-1 。
4. The humidity control method of constant temperature dehumidification air conditioner as claimed in claim 3, wherein when n is greater than or equal to 2, the first target frequency F n ＝(F n-1 +H n-1 )/2。
5. The humidity control method of constant temperature dehumidification air conditioner according to claim 3, wherein when n is greater than or equal to 2, the second target frequency H n ＝(F n +H n-1 )/2。
6. The humidity control method of a thermostatic dehumidifying air conditioner according to claim 1, wherein after determining whether the humidity difference value is less than or equal to a preset first determination value, the method further comprises:
and if the humidity difference value is larger than a preset first judgment value, controlling the operation frequency of the compressor to keep constant, and returning to the step of judging whether the humidity difference value is smaller than or equal to the preset first judgment value.
7. The humidity control method of a thermostatic dehumidifying air conditioner as claimed in claim 1, wherein after determining whether the humidity difference value is greater than a preset second determination value, the method further comprises:
and if the humidity difference value is smaller than or equal to a preset second judgment value, controlling the operation frequency of the compressor to keep constant, and returning to the step of judging whether the humidity difference value is larger than the preset second judgment value.
8. A thermostatic dehumidifying air-conditioning humidity control device comprising means for performing the method of any one of claims 1 to 7.
9. An electronic device is characterized by comprising a processor, a communication interface, a memory and a communication bus, wherein the processor and the communication interface are used for realizing mutual communication by the memory through the communication bus;
a memory for storing a computer program;
a processor for implementing the steps of the method of any one of claims 1 to 7 when executing the program stored in the memory.
10. A computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out the steps of the method according to any one of claims 1 to 7.
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