CN115307265B - Humidity control method, device and equipment for constant-temperature dehumidifying air conditioner and storage medium - Google Patents

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

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CN115307265B
CN115307265B CN202210946340.8A CN202210946340A CN115307265B CN 115307265 B CN115307265 B CN 115307265B CN 202210946340 A CN202210946340 A CN 202210946340A CN 115307265 B CN115307265 B CN 115307265B
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target
frequency
preset
humidity
equal
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CN115307265A (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)
  • Fuzzy Systems (AREA)
  • Mathematical Physics (AREA)
  • Thermal Sciences (AREA)
  • Human Computer Interaction (AREA)
  • Air Conditioning Control Device (AREA)

Abstract

The invention relates to a humidity control method, a device, equipment and a storage medium of a constant-temperature dehumidifying air conditioner, which relate to the technical field of air conditioners, and the method comprises the following steps: acquiring a humidity difference value 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; if the humidity difference value is smaller than or equal to a preset first judgment value, controlling the compressor to perform frequency reduction according to a target descending 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 rising according to the target rising rate until the frequency of the compressor reaches a second target frequency. Therefore, the invention adjusts the operation frequency of the compressor through an effective humidity control means to reduce humidity fluctuation as much as possible so as to realize constant indoor environment humidity, improve the comfort of the air conditioner and improve the user experience.

Description

Humidity control method, device and equipment for constant-temperature dehumidifying air conditioner and storage medium
Technical Field
The present invention relates to the field of air conditioning technologies, and in particular, to a method, an apparatus, a device, and a storage medium for controlling humidity of a constant temperature dehumidification air conditioner.
Background
In the dehumidifying mode of the air conditioner, the wet air generates condensed water on the surface of the low-temperature evaporator, the humidity of the indoor air is reduced along with the refrigerating operation, and the air conditioner achieves the aim of dehumidifying through refrigeration. The existing constant temperature dehumidification means is to divide the evaporator into two parts, wherein one part of the evaporator is used for refrigeration to achieve the aim of dehumidification, and the other part of the evaporator is used for heating (supplementing the heat dissipated by refrigeration) to achieve the aim of constant temperature. How to control the temperature and humidity accurately to reach the target temperature and humidity is a problem to be solved.
Therefore, in the constant temperature dehumidification mode, on the premise of ensuring the constant temperature requirement preferentially, the indoor environment humidity tends to fluctuate greatly, and the indoor humidity cannot be stabilized in a set humidity range, so that the problem of poor air conditioner comfort exists.
Disclosure of Invention
The invention provides a humidity control method, device and equipment of a constant-temperature dehumidification air conditioner and a storage medium, and aims to solve the problem that in the prior art, in a constant-temperature dehumidification mode, the indoor environment humidity fluctuates greatly, so that the comfort is poor.
In order to solve the problems, the invention adopts the following technical scheme:
In a first aspect, the present invention provides a method for controlling humidity of a constant temperature dehumidifying air conditioner, the method comprising:
Acquiring a humidity difference value 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;
If the humidity difference value is smaller than or equal to a preset first judgment value, controlling the compressor to perform frequency reduction according to a target descending rate until the frequency of the compressor reaches a first target frequency, wherein the execution times for 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 descent rate is equal to a preset descent 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 that K n＜Kn-1,Kn is the target descent rate corresponding to the execution time n, K n-1 is the target descent rate corresponding to the execution time n-1, the first target frequency satisfies that F n＞F1,Fn is the first target frequency corresponding to the execution time n, and F 1 is the 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 greater than a preset second judgment value, controlling the compressor to perform frequency ascending according to a target ascending rate until the frequency of the compressor reaches a second target frequency, wherein the execution times for judging whether the humidity difference value is greater than the preset second judgment value are 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＜Pn-1,Pn as a target rising rate corresponding to the execution time n, P n-1 as a target rising rate corresponding to the execution time n-1, the second target frequency satisfies H n＜H1,Hn as a second target frequency corresponding to the execution time n, H 1 as a preset upper limit frequency, and the first target frequency and the second target frequency satisfy H n-Fn＜Hn-1-Fn-1,Hn-1 as a second target frequency corresponding to the execution time n-1, and F n-1 as a first target frequency corresponding to the execution time n-1.
When n is greater than or equal to 2, the target descending rate K n＝Kn-1/2 and the target ascending rate P n＝Pn-1/2 are adopted.
According to a further technical scheme, when n is greater than or equal to 2, the first target frequency further meets F n-1＜Fn, and the second target frequency further meets H n＜Hn-1.
The further technical scheme is that when n is more than or equal to 2, the first target frequency F n＝(Fn-1+Hn-1)/2.
The further technical scheme is that when n is more than or equal to 2, the second target frequency H n＝(Fn+Hn-1)/2.
The further technical scheme is that after the judging whether the humidity difference is smaller than or equal to a preset first judging value, the method further comprises:
And if 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.
The further technical scheme is that after the judging whether the humidity difference is larger than a preset second judging 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 be kept 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 invention also provides a thermostatic dehumidifying air-conditioning humidity control device comprising means for performing the method of 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 communication with each other through the communication bus;
a memory for storing a computer program;
And a processor configured to implement the steps of the method according to the first aspect when executing the program stored in the memory.
In a fourth aspect, the present invention also provides a computer-readable storage medium having stored thereon a computer program which, when executed by a processor, implements 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 value between the actual humidity of the 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 of the representing target area is lower than the preset target humidity, controlling the compressor to perform frequency reduction according to the target descending speed until the frequency of the compressor reaches a first target frequency, and reducing the dehumidification amount by reducing the frequency of the compressor so as to increase the actual humidity of the target area; after the actual humidity of the target area is increased by the frequency reduction of the compressor, judging whether the humidity difference value is larger than a preset second judging value, and when the humidity difference value is larger than the preset second judging value, controlling the compressor to increase the frequency according to the target increasing rate until the frequency of the compressor reaches a second target frequency, so that the actual humidity of the target area is reduced by increasing the dehumidifying amount by increasing the frequency of the compressor.
And the number of times of execution 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 descent rate is equal to a preset descent rate, and the first target frequency is a preset lower limit frequency; when n is greater than or equal to 2, the target falling rate meets the requirement that K n＜Kn-1,Kn is the target falling rate corresponding to the execution time n, K n-1 is the target falling rate corresponding to the execution time n-1, the first target frequency meets the requirement that F n＞F1,Fn is the first target frequency corresponding to the execution time n, and F 1 is the preset lower limit frequency, so that the target falling rate of the compressor gradually decreases along with the continuous circulation of logic, and the indoor humidity fluctuation is relieved;
meanwhile, the execution times for 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 that P n＜Pn-1,Pn is the target rising rate corresponding to the execution time n, P n-1 is the target rising rate corresponding to the execution time n-1, the second target frequency satisfies that H n＜H1,Hn is the second target frequency corresponding to the execution time n, H 1 is the preset upper limit frequency, and the second target frequency corresponding to the execution time n-1 is satisfied between the first target frequency and the second target frequency H n-Fn＜Hn-1-Fn-1,Hn-1, and F n-1 is the first target frequency corresponding to the execution time n-1, so that the target rising rate of the compressor gradually decreases along with the continuous circulation of logic, thereby reducing indoor humidity fluctuation. Therefore, the invention controls the compressor operating frequency in a closed loop through judging the humidity difference value, subdivides the control means under each humidity difference value, and finally controls the compressor frequency through 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 gradually decrease along with the continuous circulation of logic, and gradually reduces the adjustable range of the compressor frequency by enabling the first target frequency and the second target frequency to meet H n-Fn＜Hn-1-Fn-1, so that the compressor frequency gradually approaches to the optimal compressor frequency under 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 of the invention or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, and it will be obvious to a person skilled in the art that other drawings can be obtained from these drawings without inventive effort.
Fig. 1 is a schematic flow chart of a humidity control method of a constant temperature dehumidification air conditioner provided in embodiment 1 of the present invention;
Fig. 2 is a block diagram of a humidity control apparatus of a constant temperature dehumidifying 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 diagrams of specific control flow of a humidity control method of a constant temperature dehumidification air conditioner according to embodiment 1 of the present disclosure.
Detailed Description
In order to more fully understand the technical content of the present invention, the following technical solutions of the present invention will be further described and illustrated with reference to specific embodiments, but are not limited thereto.
The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are some, but not all embodiments of the invention. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the invention, are intended to be within the scope of the present invention.
It should be understood that the terms "comprises" and "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 the present 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 of a constant temperature dehumidification air conditioner according to embodiment 1 of the present disclosure. The method is applied to the controller. Specifically, as shown in fig. 1, the method includes the following steps S101 to S105.
S101, acquiring a humidity difference value between the actual humidity of the target area and a preset target humidity in real time.
Specifically, the humidity difference value between the actual humidity of the target area and the preset target humidity is detected in real time through the humidity sensor, then the processor acquires the humidity difference value between the actual humidity of the target area uploaded by the humidity sensor and the preset target humidity in real time, and the running frequency of the compressor is recorded in real time.
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 each judgment in the method complies with the following conditions: ① The target area is a high-temperature and high-humidity environment when the constant-temperature dehumidification mode is started by default; ② The preset upper limit frequency of constant temperature dehumidification is smaller than or equal to the refrigeration lower limit frequency, and judgment is started when the humidity change of a ③ target area is 3%, so that the influence of frequent judgment on the service life of the compressor and the humidity fluctuation is avoided; ④ The next decision is made after each time the compressor is up-converted or down-converted for 30 s.
And S103, if the humidity difference value is smaller than or equal to a preset first judgment value, controlling the compressor to perform frequency reduction according to the target descending 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 determination value, and at the moment, the actual humidity of the representative target area is lower than the preset target humidity, the processor controls the compressor to perform frequency reduction according to the target descending speed until the frequency of the compressor reaches a first target frequency, so that the actual humidity of the target area is increased by reducing the frequency of the compressor to reduce the dehumidifying amount. Wherein the number of times of execution of the first preset determination value for determining whether the humidity difference is smaller than or equal to a preset first determination value is n, and n is an integer greater than or equal to 1; when n=1, the target descent rate is equal to a preset descent rate, and the first target frequency is a preset lower limit frequency; when n is greater than or equal to 2, the target falling rate satisfies that K n＜Kn-1,Kn is the target falling rate corresponding to the execution time n, K n-1 is the target falling rate corresponding to the execution time n-1, the first target frequency satisfies that F n＞F1,Fn is the first target frequency corresponding to the execution time n, and F 1 is the preset lower limit frequency, so that the target falling rate of the compressor gradually decreases along with the continuous circulation of logic, and indoor humidity fluctuation is relieved.
In an embodiment, after the determining whether the humidity difference is less than or equal to the preset first determination value, the method further includes:
And if 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.
Specifically, if the humidity difference is greater than a preset first determination value, 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 returning to whether the humidity difference is smaller than or equal to the preset first determination value is performed to continue the determination.
In one embodiment, the target descent rate K n＝Kn-1/2 when n is greater than or equal to 2.
Specifically, when n is 2 or more, the target descent rate is made to satisfy K n＜Kn-1 by making the target descent rate K n＝Kn-1/2.
S104, judging whether the humidity difference value is larger than a preset second judgment value.
Specifically, after the compressor frequency-reducing in the step S103 to raise the actual humidity of the target area, the processor determines in real time whether the humidity difference is greater than a preset second determination value, where the preset second determination value is greater than a 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 rising according to the 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 the actual humidity of the target area is higher than the preset target humidity, the processor controls the compressor to increase the frequency of the compressor according to the target increasing rate until the frequency of the compressor reaches a second target frequency, so that the actual humidity of the target area is reduced by increasing the dehumidifying amount by increasing the frequency of the compressor. Wherein the number of execution times of judging whether the humidity difference is larger than a preset second judgment value is 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 that P n＜Pn-1,Pn is the target rising rate corresponding to the execution time n, P n-1 is the target rising rate corresponding to the execution time n-1, the second target frequency satisfies that H n＜H1,Hn is the second target frequency corresponding to the execution time n, H 1 is the preset upper limit frequency, and the second target frequency corresponding to the execution time n-1 is satisfied between the first target frequency and the second target frequency H n-Fn＜Hn-1-Fn-1,Hn-1, and F n-1 is the first target frequency corresponding to the execution time n-1, so that the target rising rate of the compressor gradually decreases along with the continuous circulation of logic, thereby reducing indoor humidity fluctuation.
In one embodiment, the target rate of rise P n＝Pn-1/2 when n is equal to or greater than 2.
Specifically, when n is 2 or more, the target ascent rate is made to satisfy P n＜Pn-1 by making the target ascent rate P n＝Pn-1/2.
In an embodiment, when n is greater than or equal to 2, the first target frequency further satisfies F n-1＜Fn and the second target frequency further satisfies H n＜Hn-1.
Specifically, when n is greater than or equal to 2, on the basis that the first target frequency satisfies F n＞F1, the first target frequency also satisfies F n-1＜Fn, and on the basis that the second target frequency satisfies H n＜H1, the second target frequency also satisfies H n＜Hn-1, and as the logic is continuously circulated, the first target frequency is larger and the second target frequency is smaller, so that the adjustable range of the compressor frequency is continuously reduced.
In an embodiment, when n is greater than or equal to 2, the first target frequency F n＝(Fn-1+Hn-1)/2 and the second target frequency H n＝(Fn+Hn-1)/2.
Specifically, when n is greater than or equal to 2, how to make the first target frequency further satisfy F n-1＜Fn woolen is achieved by defining the first target frequency F n＝(Fn-1+Hn-1)/2, and how to make the second target frequency further satisfy H n＜Hn-1 woolen is achieved by defining the second target frequency H n＝(Fn+Hn-1)/2, and each steady operation stage compressor frequency is related to the previous stage compressor frequency.
In an embodiment, after the determining whether the humidity difference is greater than the 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 operation frequency of the compressor to be kept 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 is not greater than a preset second determination value, and the operation frequency of the compressor is controlled to be kept constant until the humidity difference is greater than the preset second determination value.
In an embodiment, after the determining whether the humidity difference is greater than the preset second determination value, the method further includes:
If the humidity difference is smaller than the preset second judgment value and smaller than the preset first judgment value, controlling the compressor to carry out frequency reduction according to the descending rate used by frequency reduction of 1/2 times of last time until the sum of the frequency of the previous stable operation of 1/2 times and the preset lower limit frequency is reached, and returning to the step of judging whether the humidity difference is larger than the preset second judgment 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 operation frequency of the compressor to be kept 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 rise is quickened 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, the humidity difference value is not larger than the preset second judgment value, and the operation frequency of the compressor is controlled to be kept constant.
In an embodiment, if the humidity difference is greater than the preset second determination value, the method further includes:
further judging whether the humidity difference value is larger than a preset second judgment value;
If the humidity difference value is larger than a preset second judgment value, controlling the compressor to perform frequency raising according to the raising rate used by 1/2 times of the last frequency raising until the sum of the frequency of the previous stable operation of 1/2 times and the preset upper limit frequency is reached;
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 be kept constant.
Specifically, the step of further judging whether the humidity difference is greater than the preset second judgment value is performed after each 1 execution of the step of judging whether the humidity difference is greater than the preset second judgment value, so as to further increase the frequency of the compressor to dehumidify as soon as possible when the frequency of the compressor reaches the second target frequency but the indoor humidity is still high. When the humidity difference is greater than the 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 taken as a new second target frequency. And when the humidity difference value is smaller than or equal to a preset second judgment value, the indoor humidity is continuously reduced but not reduced to be smaller than or equal to a preset first judgment value, and the operation frequency of the compressor is controlled to be kept constant.
The following is a specific control flow in an embodiment, where, assuming that the preset first determination value is-5%, assuming that the preset second determination value is 5%, and 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 Δrh:
Firstly, starting an air conditioner constant temperature dehumidification mode, and preferentially ensuring that the indoor temperature reaches a target temperature according to refrigeration control logic, wherein the indoor humidity is continuously reduced at the moment;
Entering a first stage to judge:
When-5% < DeltaRH, that is, the humidity difference is greater than a preset first 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 less than or equal to the preset first determination value (because the constant temperature dehumidification mode is started, the indoor humidity is reduced but the humidity difference is not reduced to the first determination value, and the compressor is kept at a constant frequency);
When minus 5 percent is more than or equal to delta RH, namely, when the humidity difference value 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), the compressor is controlled to carry out frequency reduction according to a preset descending 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 compressor is reduced to the preset lower limit frequency, the dehumidification amount is reduced, the indoor humidity is increased, and the compressor enters a second stage judgment after the frequency reduction and stable operation.
And (3) judging in the second stage:
When ΔRH 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 remain constant, and returning to the step of determining whether the humidity difference is greater than the preset second determination value (the indoor humidity is increased but the humidity difference is not increased to the second determination value, the compressor remains at a constant frequency, and continuing to circulate to determine whether the humidity difference is greater than the preset second determination value);
When ΔRH > 5%, namely when the first time (when n equals 1) judges that the humidity difference is greater than the preset second judgment value, the compressor is controlled to perform frequency raising according to the preset raising rate until the frequency of the compressor reaches the preset upper limit frequency (the indoor humidity continuously rises, when the indoor humidity is far higher than the target humidity, namely, the humidity difference is greater than the preset second judgment value, the compressor is raised to the preset upper limit frequency, the dehumidification amount is increased, the indoor humidity is lowered, and the compressor enters a third stage judgment after the frequency raising stable operation).
And a third stage of judgment:
When-5% < ΔRH, that is, the nth time (when n is greater than or equal to 2) it is determined that the humidity difference is greater than the preset first determination value, controlling the operation frequency of the compressor to remain constant, and returning to the step of determining whether the humidity difference is less than or equal to the preset first determination value (the indoor humidity is reduced but the humidity difference is not reduced to the first determination value, and the compressor remains at a constant frequency);
When-5% is more than or equal to DeltaRH, that is, the nth time (when n is more than or equal to 2) judges that the humidity difference is less than or equal to a preset first judgment value, the compressor is controlled to perform frequency reduction according to a target descending rate K n＝Kn-1/2 until the frequency of the compressor reaches a first target frequency F n＝(Fn-1+Hn-1)/2 (the indoor humidity is continuously reduced, and when the indoor humidity is far lower than the target humidity, the compressor frequency reduction reduces the dehumidification amount to enable the indoor humidity to rise).
Fourth stage judgment:
When ΔRH is less than or equal to 5%, that is, the humidity difference is less than or equal to a preset second determination value, the operation frequency of the compressor is controlled to be kept constant, and the step of determining whether the humidity difference is greater than the preset second determination value is returned (the compressor is down-converted, the indoor humidity is increased, but the humidity difference is not increased to the second determination value, and the operation frequency of the compressor is controlled to be kept constant).
When ΔRH > 5%, that is, n times (when n is greater than or equal to 2) the humidity difference is greater than the preset second determination value, the compressor is controlled to perform frequency raising according to the target rising rate P n＝Pn-1/2 until the frequency of the compressor reaches the second target frequency H n＝(Fn+Hn-1)/2 (at this time, the indoor humidity continuously rises, the humidity difference has risen to the second determination value, and then the compressor is made to rise to reduce the indoor humidity until the humidity difference falls to the first determination 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 in another embodiment, and includes the following steps S201 to S217, where, assuming that the preset first determination value is-5%, assuming that the preset second determination value is 5%, and 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 Δrh:
Firstly, starting an air conditioner constant temperature dehumidification mode, and preferentially ensuring that the indoor temperature reaches a target temperature according to refrigeration control logic, wherein the indoor humidity is continuously reduced at the moment;
Entering a first stage to judge:
s201, judging whether the humidity difference value is less than or equal to-5% for the first time;
S202, when minus 5% < delta RH, controlling the operation frequency of the compressor to be constant, and returning to the step of judging whether the humidity difference is less than or equal to minus 5% for the first time.
Specifically, since the constant temperature dehumidification mode is turned on, the indoor humidity is reduced but the humidity difference is not reduced to the first determination value, and when-5% < Δrh, that is, when the humidity difference is greater than a preset first determination value, the compressor operation frequency is controlled to remain constant.
S203, when minus 5 percent is more than or equal to delta RH, controlling the compressor to carry out frequency reduction according to a preset descending rate until the frequency of the compressor reaches a preset lower limit frequency.
Specifically, when the indoor humidity is far lower than the target humidity, namely when the first time (when n is equal to 1) judges that the humidity difference is smaller than or equal to a preset first judgment value, the compressor is controlled to be down-converted to a preset lower limit frequency, the dehumidification amount is reduced, the indoor humidity is increased, and the compressor enters a second stage for judgment after down-conversion stable operation.
And (3) judging in the second stage:
S204, judging whether the humidity difference value is more 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 constant, and returning to the step of judging whether the humidity difference is greater than 5% for the first time.
Specifically, when Δrh 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 is increased, but the humidity difference is not increased to the second determination value, the compressor maintains a constant frequency, and the cycle continues to determine whether the humidity difference is greater than the preset second determination value.
S206, when the delta RH is more than 5%, controlling the compressor to increase the frequency according to the preset increasing rate until the frequency of the compressor reaches the preset upper limit frequency.
Specifically, when Δrh is greater than 5%, i.e. when it is determined for the first time (where n is equal to 1) that the humidity difference is greater than the preset second determination value, the indoor humidity continuously rises, and then the compressor is controlled to rise to the preset upper limit frequency, the dehumidification amount is increased, so that the indoor humidity is reduced, and the compressor enters the third stage for determination after the rising frequency is stably operated.
And a third stage of judgment:
S207, judging whether the humidity difference is less than or equal to-5%;
Specifically, at this time, whether the humidity difference is less than or equal to-5% or not is judged for the nth time, wherein n is greater than or equal to 2.
S208, when minus 5 percent is less than delta RH, controlling the operation frequency of the compressor to be constant, and returning to the step of judging whether the humidity difference is less than or equal to minus 5 percent.
Specifically, when the indoor humidity is reduced but the humidity difference is not reduced to the first determination value and the nth time (when n is greater than or equal to 2) determines that the humidity difference is greater than the preset first determination value, the compressor is controlled to maintain a constant frequency.
S209, when minus 5 percent is more than or equal to delta RH, controlling the compressor to carry out frequency reduction according to the descending rate used by the last frequency reduction of 1/2 times until reaching the sum of the frequencies of the previous 2 times of stable operation of 1/2 times.
Specifically, the indoor humidity is continuously reduced at this time, when the indoor humidity is far lower than the target humidity, that is, when the nth time (when n is greater than or equal to 2) judges that the humidity difference is smaller than or equal to a preset first judgment value, the compressor is controlled to be reduced to 1/2 times of the sum of frequencies during the previous 2 times of stable operation, the dehumidification amount is reduced, and the indoor humidity is increased.
Fourth stage judgment:
s210, further judging whether the humidity difference value is less than or equal to-5%;
And A, judging: s211, when the delta RH is less than or equal to minus 5 percent, controlling the compressor to carry out frequency reduction according to the descending rate used by the last frequency reduction of 1/2 times until the sum of the frequency of the last stable operation of 1/2 times and the preset lower limit frequency is reached, 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 frequency-reduced to enable the indoor humidity to rise, but the humidity difference value is not increased to a second determination value, the compressor is frequency-reduced continuously and is operated stably, then the compressor is circulated to determine whether the humidity difference value is larger than a preset second determination value or not until DeltaRH > -5%, and B determination is started.
S212, if delta RH > -5%, judging whether the humidity difference value meets-5% < delta RH less than or equal to 5%;
b, judging: s213, when minus 5 percent is less than or equal to delta RH and less than or equal to 5 percent, controlling the operation frequency of the compressor to be kept constant, and returning to the step of judging whether the humidity difference value meets minus 5 percent and less than or equal to delta RH.
Specifically, at this time, the indoor humidity continuously rises, but the humidity difference does not rise to the second determination value, the compressor maintains a constant frequency, and the determination is performed circularly to determine whether the humidity difference is greater than the preset second determination value until Δrh is greater than 5%, and then the determination of C is started.
C, judging: s214, when the delta RH is more than 5%, controlling the compressor to perform frequency up-conversion according to the frequency up-conversion rate used by 1/2 times of the last frequency up-conversion until reaching the sum of the frequencies of the first 2 times of 1/2 times of stable operation.
Specifically, at this time, the indoor humidity continuously rises, the humidity difference value has risen to a second determination value, that is, when the nth time (at this time, n is greater than or equal to 2) determines that the humidity difference value is greater than a preset second determination value, the target rising rate of the compressor is made to be 1/2 times of the frequency rising rate used for the last rising frequency to perform the rising frequency until reaching 1/2 times of the sum of frequencies during the previous 2 times of stable operation, and the D determination is performed after the rising frequency of the compressor is performed.
D, judging:
s215, further judging whether the humidity difference is more 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 is less than or equal to-5%;
specifically, at this time, the indoor humidity is continuously reduced, but the humidity difference is not reduced to the first determination value, the compressor is kept at a constant frequency, and the third phase-fourth phase-third phase determination is started.
S217, when the delta RH is more than 5%, controlling the compressor to perform frequency raising according to the rising speed used by 1/2 time of the last frequency raising until the sum of the frequency of the previous stable operation of 1/2 time and the preset upper limit frequency is reached, and returning to the step of further judging whether the humidity difference is more than 5%.
Specifically, when Δrh is greater than 5%, that is, the humidity difference is greater than a preset second determination value, the compressor is controlled to perform frequency raising according to a rising rate used for 1/2 times of the last frequency raising until the sum of the frequency of the previous stable operation of 1/2 times and a preset upper limit frequency is reached, D determination is performed circularly after the compressor is subjected to frequency raising stable operation, until the operating frequency of the compressor is kept constant and is equal to or less than 5% when Δrh is smaller than or equal to 5%, and third stage, fourth stage and third stage determination are started circularly.
Specifically, the invention controls the compressor operating frequency in a closed loop through judging the humidity difference value, subdivides the control means under each humidity difference value, and finally controls the compressor frequency 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 gradually decrease along with the continuous circulation of logic, thereby slowing down indoor humidity fluctuation, and when the logic is continuous circulated, the first target frequency and the second target frequency meet H n-Fn＜Hn-1-Fn-1, and the compressor frequency of each stable operation section is related to the compressor frequency of the front section, thereby gradually narrowing the adjustable range of the compressor frequency, and enabling the compressor frequency to gradually approach to the optimal compressor frequency under the environment so as to slow down the humidity fluctuation condition.
Example 2
As shown in fig. 2, the 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 acquisition unit 401, a first judgment unit 402, a first control unit 403, a second judgment unit 404, and a second control unit 405.
A first obtaining unit 401, configured to obtain, in real time, a humidity difference between an actual humidity of a target area and a preset target humidity;
A first determining unit 402, configured to determine whether the humidity difference is less than or equal to a preset first determination value;
A first control unit 403, configured to control the compressor to perform frequency reduction according to a target descent rate if the humidity difference value is less than or equal to a preset first determination value, until the frequency of the compressor reaches a first target frequency, where the number of times of execution for determining whether the humidity difference value is less than or equal to the preset first determination value is n, where n is an integer greater than or equal to 1; when n=1, the target descent rate is equal to a preset descent 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 that K n＜Kn-1,Kn is the target descent rate corresponding to the execution time n, K n-1 is the target descent rate corresponding to the execution time n-1, the first target frequency satisfies that F n＞F1,Fn is the first target frequency corresponding to the execution time n, and F 1 is the preset lower limit frequency;
a second determining 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 boosting according to a target rising 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 number of times of execution for determining whether the humidity difference is greater than the preset second determination value is n, where 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＜Pn-1,Pn as a target rising rate corresponding to the execution time n, P n-1 as a target rising rate corresponding to the execution time n-1, the second target frequency satisfies H n＜H1,Hn as a second target frequency corresponding to the execution time n, H 1 as a preset upper limit frequency, and the first target frequency and the second target frequency satisfy H n-Fn＜Hn-1-Fn-1,Hn-1 as a second target frequency corresponding to the execution time n-1, and F n-1 as a first target frequency corresponding to the execution time n-1.
In one embodiment, when n is greater than or equal to 2, the target descent rate K n＝Kn-1/2 and the target ascent rate P n＝Pn-1/2.
In an embodiment, when n is greater than or equal to 2, the first target frequency further satisfies F n-1＜Fn and the second target frequency further satisfies H n＜Hn-1.
In one embodiment, when n is greater than or equal to 2, the first target frequency F n＝(Fn-1+Hn-1)/2.
In one embodiment, when n is greater than or equal to 2, the second target frequency H n＝(Fn+Hn-1)/2.
In an embodiment, after the determining whether the humidity difference is less than or equal to the preset first determination value, the method further includes:
And if 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.
In an embodiment, after the determining whether the humidity difference is greater than the 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 operation frequency of the compressor to be kept 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, the 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 perform communication with each other through the communication bus 114.
A memory 113 for storing a computer program;
The processor 111 is configured to execute a program stored in the memory 113 to implement the constant temperature dehumidification air-conditioning humidity control method as provided in embodiment 1.
The embodiment of the present invention also provides a computer-readable storage medium having stored thereon a computer program which, when executed by the processor 111, implements the steps of the constant temperature dehumidifying air-conditioning humidity control method as provided in embodiment 1.
It should be noted that in this document, relational terms such as "first" and "second" and the like are 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. Moreover, 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 phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
The foregoing is only a specific embodiment of the invention to enable those skilled in the art to understand or practice the 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 method for controlling humidity of a constant-temperature dehumidifying air conditioner, comprising the steps of:
Acquiring a humidity difference value 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;
If the humidity difference value is smaller than or equal to a preset first judgment value, controlling the compressor to perform frequency reduction according to a target descending rate until the frequency of the compressor reaches a first target frequency, wherein the execution times for 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 descent rate is equal to a preset descent 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 that K n＜Kn-1,Kn is the target descent rate corresponding to the execution time n, K n-1 is the target descent rate corresponding to the execution time n-1, the first target frequency satisfies that F n＞F1,Fn is the first target frequency corresponding to the execution time n, and F 1 is the 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 greater than a preset second judgment value, controlling the compressor to perform frequency ascending according to a target ascending rate until the frequency of the compressor reaches a second target frequency, wherein the execution times for judging whether the humidity difference value is greater than the preset second judgment value are 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＜Pn-1,Pn as a target rising rate corresponding to the execution time n, P n-1 as a target rising rate corresponding to the execution time n-1, the second target frequency satisfies H n＜H1,Hn as a second target frequency corresponding to the execution time n, H 1 as a preset upper limit frequency, and the first target frequency and the second target frequency satisfy H n-Fn＜Hn-1-Fn-1,Hn-1 as a second target frequency corresponding to the execution time n-1, and F n-1 as a first target frequency corresponding to the execution time n-1.
2. The method according to claim 1, wherein when n is 2 or more, the target falling rate K n＝Kn-1/2 and the target rising rate P n＝Pn-1/2 are set.
3. The method according to claim 1, wherein when n is 2 or more, the first target frequency further satisfies F n-1＜Fn, and the second target frequency further satisfies H n＜Hn-1.
4. The method for controlling humidity of a constant temperature dehumidifying air conditioner as claimed in claim 3, wherein the first target frequency F n＝(Fn-1+Hn-1)/2 is when n is equal to or greater than 2.
5. The method for controlling humidity of a constant temperature dehumidifying air conditioner as claimed in claim 3, wherein the second target frequency H n＝(Fn+Hn-1)/2 when n is equal to or greater than 2.
6. The method according to claim 1, wherein after the determining whether the humidity difference is less than or equal to a preset first determination value, the method further comprises:
And if 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.
7. The method according to claim 1, wherein after said determining whether the humidity difference 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 be kept 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 apparatus comprising means for performing the method of any one of claims 1-7.
9. The electronic equipment is characterized by comprising a processor, a communication interface, a memory and a communication bus, wherein the processor, the communication interface and the memory are communicated with each other 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 1-7 when executing a program stored on a memory.
10. A computer readable storage medium, on which a computer program is stored, characterized in that the computer program, when being executed by a processor, implements the steps of the method according to any of claims 1-7.
CN202210946340.8A 2022-08-08 2022-08-08 Humidity control method, device and equipment for constant-temperature dehumidifying air conditioner and storage medium Active CN115307265B (en)

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