CN106801983A - Air-conditioning and its refrigeration control method and control device - Google Patents
Air-conditioning and its refrigeration control method and control device Download PDFInfo
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- CN106801983A CN106801983A CN201710114535.5A CN201710114535A CN106801983A CN 106801983 A CN106801983 A CN 106801983A CN 201710114535 A CN201710114535 A CN 201710114535A CN 106801983 A CN106801983 A CN 106801983A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
-
- 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
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
- F24F11/74—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity
- F24F11/77—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity by controlling the speed of ventilators
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
-
- 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
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
Abstract
The invention discloses a kind of air-conditioning and its refrigeration control method and control device, methods described includes：In air conditioner refrigerating running, the indoor temperature difference is obtained, room temperature PID computing is carried out according to the indoor temperature difference, obtain first object frequency, and the indoor temperature is made comparisons with the first setting comfort temperature；If the indoor temperature is not less than the described first setting comfort temperature, according to the compressor of the first object FREQUENCY CONTROL air-conditioning；If the indoor temperature is less than the described first setting comfort temperature, obtain the coil pipe temperature difference, disk temperature PID arithmetic is carried out according to the coil pipe temperature difference, the second target frequency is obtained, the smaller value in the first object frequency and second target frequency controls the compressor of air-conditioning；Meanwhile, the rotating speed of control air-conditioning indoor fan is not higher than the rotating speed corresponding to low wind speed.Using the present invention, can realize taking into account Thermal comfort and noise comfortableness, improve air conditioning comfortableness runnability.
Description
Technical field
It is to be related to air-conditioning and its refrigeration control method and control specifically the invention belongs to air-conditioning technique field
Device.
Background technology
Hot summer, many people be unable to do without air-conditioning the whole day and night, but the long-term harm for blowing air-conditioning to human body is a lot, holds
Be easy to get air conditioner disease.Therefore, the comfortableness of airconditioning control, especially refrigerating operaton when comfortableness it is particularly important, whether air-conditioning relaxes
It is suitable to have become the major consideration that user uses air-conditioning, it is also the important indicator for evaluating heat pump performance.
Whether air-conditioning is comfortable, includes the comfortableness of temperature and the comfortableness of noise.For the pleasant climate of temperature, base
In double PID controls of room temperature PID control and disk temperature PID control be current performance control mode higher.It is comfortable for noise
Property control, wherein a crucial governing factor is the control to indoor fan wind speed.For the control of wind speed, prior art is normal
It is to be controlled according to the temperature difference between design temperature and indoor temperature, high wind speed operation, the temperature difference is controlled when the temperature difference is larger
Low wind speed is controlled to run when smaller.This blast velocity control does not consider the influence of the noise that wind speed is produced, more passes through
The control of wind speed adjusts the comfortableness of temperature, therefore, to noise comfortableness almost without too big improvement.Also, existing skill
In art, do not occur the comprehensive control method for taking into account Thermal comfort and noise comfortableness also.
The content of the invention
An object of the present invention is to provide a kind of air conditioner refrigerating control method and control device, realizes to Thermal comfort
With taking into account for noise comfortableness, air conditioning comfortableness runnability is improved.
For achieving the above object, the air conditioner refrigerating control method that the present invention is provided gives reality using following technical proposals
It is existing：
A kind of air conditioner refrigerating control method, methods described includes：
In air conditioner refrigerating running, indoor temperature is obtained, calculates the temperature difference of the indoor temperature and setting indoor target temperature,
The indoor temperature difference is obtained, room temperature PID computing is carried out according to the indoor temperature difference, obtain first object frequency, and by the Indoor Temperature
Degree is made comparisons with the first setting comfort temperature；
If the indoor temperature performs the first following control process not less than the described first setting comfort temperature：
According to the compressor of the first object FREQUENCY CONTROL air-conditioning；
If the indoor temperature performs the second following control process less than the described first setting comfort temperature：
The coil temperature of A/C evaporator is obtained, the temperature difference of the coil temperature and setting coil pipe target temperature is calculated, disk is obtained
The pipe temperature difference, disk temperature PID arithmetic is carried out according to the coil pipe temperature difference, the second target frequency is obtained, according to the first object frequency
With the compressor that the smaller value in second target frequency controls air-conditioning；Meanwhile, control the rotating speed of air-conditioning indoor fan not high
In the rotating speed corresponding to low wind speed.
Method as described above, methods described also includes：
Judge the indoor temperature whether less than the second setting comfort temperature；The second setting comfort temperature is less than described first
Setting comfort temperature；
If the indoor temperature in second control process, controls air conditioning chamber not less than the described second setting comfort temperature
The rotating speed of inner blower is the rotating speed corresponding to the low wind speed；
If the indoor temperature is less than the described second setting comfort temperature, in second control process, in control air conditioning chamber
The rotating speed of blower fan is less than the rotating speed corresponding to the low wind speed.
Method as described above, first control process also includes：If detecting the wind speed of user's setting, air-conditioning is controlled
The rotating speed of indoor fan is the corresponding rotating speed of wind speed of user's setting；Otherwise, it is height to control the rotating speed of air-conditioning indoor fan
Rotating speed corresponding to wind speed.
Method as described above, when second control process is performed, still obtains the indoor temperature in real time, and by institute
State indoor temperature to be made comparisons with the described first setting comfort temperature, in the indoor temperature not less than the comfortable temperature of the described first setting
When spending, second control process is exited, perform first control process.
Method as described above, when second control process is performed, still obtains the indoor temperature in real time, and by institute
State indoor temperature to be made comparisons with the described first setting comfort temperature, in the indoor temperature not less than the comfortable temperature of the described first setting
When the difference of degree and the indoor temperature and the first setting comfort temperature is more than setting difference, exits described second and controlled
Journey, performs first control process.
To realize aforementioned invention purpose, the air conditioner refrigerating control device that the present invention is provided gives reality using following technical proposals
It is existing：
A kind of air conditioner refrigerating control device, described device includes：
Indoor temperature acquiring unit, for obtaining indoor temperature；
Coil temperature acquiring unit, the coil temperature for obtaining A/C evaporator；
Room temperature PID arithmetic element, for calculating the temperature difference between the indoor temperature and setting indoor target temperature, obtains indoor
The temperature difference, room temperature PID computing is carried out according to the indoor temperature difference, obtains and export first object frequency；
Disk temperature PID arithmetic unit, for calculating the temperature difference between the coil temperature and setting coil pipe target temperature, obtains coil pipe
The temperature difference, disk temperature PID arithmetic is carried out according to the coil pipe temperature difference, obtains and export the second target frequency；
Control model select unit, for comparing the indoor temperature and the first setting comfort temperature, and exports comparative result work
It is control model selection signal；
First process control unit, for the comparative result that is exported in the control model select unit for the indoor temperature not
During less than the described first setting comfort temperature, the first control process is performed, according to the pressure of the first object FREQUENCY CONTROL air-conditioning
Contracting machine；
Second process control unit, the comparative result for being exported in the control model select unit is that the indoor temperature is small
When the described first setting comfort temperature, the second control process is performed, according to the first object frequency and second target
Smaller value in frequency controls the compressor of air-conditioning, meanwhile, control the rotating speed of air-conditioning indoor fan to be not higher than corresponding to low wind speed
Rotating speed.
Whether device as described above, the control model select unit also judges the indoor temperature less than the second setting
Comfort temperature, and export comparative result；The second setting comfort temperature is less than the described first setting comfort temperature；
If the output result of the control model select unit is the indoor temperature sets comfort temperature not less than described second,
In second control process is performed, the rotating speed for controlling air-conditioning indoor fan is the low wind to second process control unit
Rotating speed corresponding to speed；
If the output result of the control model select unit is the indoor temperature less than the described second setting comfort temperature, institute
The second process control unit is stated in second control process is performed, the rotating speed for controlling air-conditioning indoor fan is low less than described
Rotating speed corresponding to wind speed.
Device as described above, first process control unit also includes in first control process is performed：If
The wind speed of user's setting is detected, the rotating speed for controlling air-conditioning indoor fan is the corresponding rotating speed of wind speed of user's setting；It is no
Then, rotating speed of the rotating speed of air-conditioning indoor fan corresponding to high wind speed is controlled.
Device as described above, second process control unit when second control process is performed, the control
Mode selecting unit still compares the indoor temperature and the described first setting comfort temperature in real time, is the interior in comparative result
Temperature is not less than the described first setting comfort temperature or the indoor temperature not less than the described first setting comfort temperature and institute
When stating the difference of indoor temperature and the first setting comfort temperature more than setting difference, second process control unit exits institute
The control of the second control process is stated, first process control unit performs first control process.
Present invention also offers a kind of air-conditioning with above-mentioned air conditioner refrigerating control device.
Compared with prior art, advantages and positive effects of the present invention are：The present invention by setting comfort temperature, according to room
Interior temperature and the size of setting comfort temperature, select to use the first control process of room temperature PID or use to consider to be based on evaporator
Second control process of the disk temperature PID control of coil temperature, can drop when temperature is high indoors to room in time, quickly
Temperature, reaches refrigeration purpose, again can when temperature is not very high indoors by coil temperature stabilization in coil pipe target temperature so that it is empty
Recall air temperature comfortable, reach the comfortableness of temperature adjustment；And, performing the second control process, to reach temperature adjustment comfortable
Property while, control the wind speed of indoor fan to be not higher than low wind speed, to reduce indoor set noise, reach noise regulation comfortableness
Purpose, it is achieved thereby that Thermal comfort and noise comfortableness synchronously take into account regulation, improve air conditioning comfortableness runnability.
Also, the size of the adjustment based on indoor temperature of wind speed, rather than the temperature difference of indoor temperature and target temperature size, as long as indoor
Temperature is reduced under setting comfort temperature and is adjusted to low wind speed, because indoor temperature has been more comfortable non high temperature,
So, the reduction of wind speed does not interfere with the comfortableness of temperature adjustment, but can cause that room noise is significantly reduced, and air rate adjustment is more
Rationally, and more energy-conservation.
After specific embodiment of the invention is read in conjunction with the figure, the other features and advantages of the invention will become more clear
Chu.
Brief description of the drawings
Fig. 1 is the flow chart based on air conditioner refrigerating control method one embodiment of the present invention；
Fig. 2 is the structured flowchart based on air conditioner refrigerating control device one embodiment of the present invention.
Specific embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, below with reference to drawings and Examples,
The present invention is described in further detail.
Fig. 1 is referred to, the figure show the flow chart of air conditioner refrigerating control method one embodiment of the present invention.
As shown in figure 1, the embodiment realizes that the detailed process of the method for refrigeration control is as follows：
Step 11：Refrigerating operaton, obtains indoor temperature, and room temperature PID computing is carried out according to the indoor temperature difference, obtains first object frequently
Rate.
Specifically, when air-conditioning is started shooting and performs refrigerating operaton, the indoor temperature in room residing for detection air-conditioning.The interior
The detection of temperature is realized using prior art.For example, by being arranged on air-conditioning air inlet or the temperature near air-conditioning air inlet
Degree sensor is detected and obtains EAT, used as indoor temperature.
Then, the temperature difference between indoor temperature and setting indoor target temperature is calculated, using the temperature difference as the indoor temperature difference.Its
In, setting indoor target temperature refers to user's setting, the indoor target temperature for being reached of hope.
Subsequently, room temperature PID computing is carried out according to the indoor temperature difference, obtains the target frequency being controlled to compressor, and
The target frequency is defined as first object frequency.Wherein, room temperature PID computing carried out according to the indoor temperature difference, obtained to compressor
The specific method of the target frequency being controlled can be realized using prior art, not be elaborated herein and limit.
Step 12：Judge indoor temperature whether less than the first setting comfort temperature.If so, performing the second control of step 14
Process；Otherwise, the first control process of step 13 is performed.
The step 12 can simultaneously be carried out with step 11, and two steps are divided into herein merely to clearly statement should
The control process of embodiment.After step 11 gets indoor temperature, indoor temperature is made to compare with the first setting comfort temperature
Compared with, and judge indoor temperature whether less than the first setting comfort temperature.Wherein, the first setting comfort temperature can be when dispatching from the factory
One default setting temperature of air-conditioning, or the design temperature voluntarily selected by user and set.If by with
Family sets itself, air-conditioning can provide a reference temperature value, for reference.For example, it is proposed that by the comfortable temperature of the first setting
Degree is set as 27 DEG C.
Step 13：If indoor temperature performs the first control process, according to the first mesh not less than the first setting comfort temperature
Mark FREQUENCY CONTROL compressor.
If step 12 judges that indoor temperature, not less than the first setting comfort temperature, shows that now indoor temperature is higher, then
First control process, the compressor of the first object FREQUENCY CONTROL air-conditioning for specifically being calculated according to room temperature PID so that
Indoor temperature fast cooling is to setting indoor target temperature.
Step 14：If indoor temperature performs the second control process less than the first setting comfort temperature.
If step 12 judges indoor temperature less than the first setting comfort temperature, to avoid the too fast decline of temperature from causing body-sensing
Uncomfortable, execution includes the second control process of dual PID control, to adjust compressor operating frequency in time so that steam
Hair device coil temperature can be stabilized to setting coil pipe target temperature, to adjust air conditioning exhausting temperature, reach cool without cold comfortable
Air-out effect.The specific control method of the second control process referring to below step 15 and step 16 description.
Step 15：The coil temperature of evaporator is obtained, disk temperature PID arithmetic is carried out according to the coil pipe temperature difference, obtain the second target
Frequency.
The detection of the coil temperature of evaporator can be detected by setting temperature sensor on evaporator coil.Detection
Go out after coil temperature, the temperature difference between coil temperature and setting coil pipe target temperature is calculated, using the temperature difference as the coil pipe temperature difference.
Wherein, setting coil pipe target temperature can be air-conditioning when dispatching from the factory a default setting temperature, naturally it is also possible to be by user from
The design temperature that row is selected and set.If by user's sets itself, due to user for the concept of coil temperature and
Its performance indications for representing is not very clearly, preferably to provide a reference temperature value by air-conditioning, for reference selected.For example,
The coil pipe target temperature is set as 14 DEG C by suggestion.Then, disk temperature PID arithmetic is carried out according to the coil pipe temperature difference, is obtained to compressor
The target frequency being controlled, and the target frequency is defined as the second target frequency.Disk temperature PID arithmetic obtains to enter compressor
The method of the target frequency of row control may be referred to room temperature PID computing of the prior art and obtain the side of compressor target frequency
Method.Wherein, the original frequency of disk temperature PID arithmetic can be an original frequency for setting.Preferably, disk temperature PID arithmetic is first
Beginning frequency is the current of compressor when step 12 judges indoor temperature less than the first setting comfort temperature, the second control process of execution
Running frequency.And, the current operation frequency is at least in compressor operating for a period of time（Such as 3min）An operation afterwards
Frequency.
Step 16：It is smaller in the second target frequency that the first object frequency calculated according to step 11 is calculated with step 15
Value control compressor；Meanwhile, the rotating speed of control indoor fan is not higher than the rotating speed corresponding to low wind speed.
When temperature is less than the first setting comfort temperature indoors, disk is performed according to coil temperature and setting coil pipe target temperature
Warm PID arithmetic, and the second target frequency exported according to the first object frequency and disk temperature PID arithmetic of room temperature PID computing output
In smaller value control compressor operating, adjust coil temperature while refrigeration cool-down so that coil temperature can be to coil pipe
Target temperature is approached.
And, in the second control process, the above-mentioned control except using said temperature comfortableness to compressor operating frequency
Outside system, in addition it is also necessary to which indoor fan rotating speed is adjusted, the purpose of noise comfortableness is reached.Specifically, it is in the second control
During system, the rotating speed of control indoor fan is not higher than the rotating speed corresponding to low wind speed.The rotating speed tool of existing air-conditioning indoor fan
There are the multiple wind-speed gears including low wind speed, such as there are three wind-speed gears of low wind speed, middle wind speed and high wind speed, or have
Five wind-speed gears of Jing Yin wind speed, faint wind speed, low wind speed, middle wind speed and high wind speed, each wind-speed gear is respectively provided with relatively
The rotating speed answered.In this embodiment, when temperature is less than the first setting comfort temperature, the second control process of execution indoors, obtain
Rotating speed default in air-conditioning the machine, not higher than corresponding to low wind speed, is controlled according to the rotating speed to control indoor fan, real
The noise comfortableness adjustment of existing low noise.
Refrigeration control is carried out to air-conditioning using said process, by setting comfort temperature, is relaxed with setting according to indoor temperature
The size of thermophilic degree, selection is using the first control process of room temperature PID or using disk temperature of the consideration based on evaporator coil temperature
Second control process of PID control, can lower the temperature when temperature is high indoors to room in time, quickly, reach refrigeration purpose,
Again can when temperature is not very high indoors by coil temperature stabilization in coil pipe target temperature so that air conditioning exhausting temperature pleasant,
Reach the comfortableness of temperature adjustment；And, while performing the second control process, reaching temperature adjustment comfortableness, control room
The wind speed of inner blower is not higher than low wind speed, to reduce indoor set noise, reaches the purpose that noise adjusts comfortableness, it is achieved thereby that
Thermal comfort and noise comfortableness synchronously take into account regulation, improve air conditioning comfortableness runnability.Also, the adjustment of wind speed
Size based on indoor temperature, rather than the temperature difference of indoor temperature and target temperature size, as long as indoor temperature is reduced to setting
Low wind speed is adjusted under comfort temperature, because indoor temperature has been more comfortable non high temperature, then, the reduction of wind speed
The comfortableness of temperature adjustment is not interfered with, but can cause that room noise is significantly reduced, air rate adjustment is more reasonable, and more supernumerary segment
Energy.
In some other embodiment, air-conditioning also has the second setting comfort temperature, and the second setting comfort temperature is less than
First setting comfort temperature.Similar with the first setting comfort temperature, the second setting comfort temperature can also be the space-time that dispatches from the factory
The default setting temperature adjusted, can also be the design temperature voluntarily selected by user and set.If by user
Sets itself, air-conditioning can provide a reference temperature value, for reference.For example, it is proposed that by the second setting comfort temperature
It is set as 25 DEG C.When temperature is less than the first setting comfort temperature indoors, determine whether whether indoor temperature sets less than second
Determine comfort temperature.If indoor temperature is not less than the second setting comfort temperature, then, in the second control process, control air-conditioning
The rotating speed of indoor fan is the rotating speed corresponding to low wind speed.And if indoor temperature is less than the second setting comfort temperature, second
In control process, the rotating speed that will control air-conditioning indoor fan is less than the rotating speed corresponding to low wind speed.For example, in control air conditioning chamber
The rotating speed of blower fan is the rotating speed corresponding to rotating speed or Jing Yin wind speed corresponding to faint wind.So treatment advantage be,
After indoor temperature further declines, indoor temperature is more comfortable under refrigerating state, now controls indoor fan further to reduce
Rotating speed, reaches the purpose for further reducing noise so that temperature and noise are more comfortable.And, the further reduction of wind speed
Also the heat exchange of air can be reduced, it is to avoid indoor temperature further declines and causes room temperature too low and uncomfortable.
For the first control process, in addition to the room temperature PID carried out to temperature is adjusted, can also also include to wind speed
Control.Specifically, in the first control process, if be not detected by user setting wind speed, control air-conditioning draught fan according to
The corresponding rotating speed operation of highest wind velocity；And if detect the wind speed of user's setting, the control wind speed that is set according to user of blower fan
Corresponding rotating speed operation.
In some other embodiment, when the second control process is performed, Indoor Temperature is preferably still constantly obtained in real time
Degree, and compare the size of indoor temperature and the first setting comfort temperature.Once indoor temperature is not less than the first setting comfort temperature,
The second control process is then exited, the first control process is transferred to, to cause indoor temperature stabilization in setting indoor target temperature.
Used as preferred embodiment, temperature is not less than the first setting comfort temperature and indoor temperature and first indoors
When setting the difference of comfort temperature more than setting difference, then the second control process is exited, be transferred to the first control process.By reasonable
Selection setting difference, for example, difference be 1 DEG C, it can be ensured that coil temperature is not less than coil pipe target temperature, it is ensured that go out it is cool without
Cold comfortableness.
Fig. 2 is referred to, the figure show the structured flowchart based on air conditioner refrigerating control device one embodiment of the present invention.
As shown in Fig. 2 the construction unit that is included of the refrigeration control device of the embodiment and its function are as follows：
Indoor temperature acquiring unit 21, for obtaining indoor temperature.
Room temperature PID arithmetic element 22, for calculating the indoor temperature acquired in indoor temperature acquiring unit 21 with setting room
The temperature difference between interior target temperature, obtains the indoor temperature difference, and carries out room temperature PID computing according to the indoor temperature difference, obtains and export the
One target frequency.
Coil temperature acquiring unit 23, the coil temperature for obtaining A/C evaporator.
Disk temperature PID arithmetic unit 24, coil temperature and setting coil pipe for calculating the acquisition of coil temperature acquiring unit 23
The temperature difference between target temperature, obtains the coil pipe temperature difference, and disk temperature PID arithmetic is carried out according to the coil pipe temperature difference, obtains and export the second mesh
Mark frequency.
Control model select unit 25, sets for comparing the indoor temperature acquired in indoor temperature acquiring unit 21 with first
Determine the size of comfort temperature, and export comparative result as control model selection signal to the first process control unit 26 and/or
Second process control unit 27.
First process control unit 26, for the comparative result that is exported in control model select unit 25 for indoor temperature not
During less than the first setting comfort temperature, the first control process is performed, the first object according to the output of room temperature PID arithmetic element 22 is frequently
Rate controls the compressor of air-conditioning.
Second process control unit 27, the comparative result for being exported in control model select unit 25 is that indoor temperature is small
When the first setting comfort temperature, the second control process is performed, according to the first object frequency that room temperature PID arithmetic element 22 is exported
Smaller value in the second target frequency exported with disk temperature PID arithmetic unit 24 controls compressor；Meanwhile, also control in air conditioning chamber
The rotating speed of blower fan is not higher than the rotating speed corresponding to low wind speed.
The refrigeration control device of said structure can be applied in air-conditioning, run corresponding software program, and according to Fig. 1's
Flow performs refrigeration control, realizes the regulation of air-conditioner temperature comfortableness and noise comfortableness.
In some other embodiment, control model select unit 25 also judges whether indoor temperature relaxes less than the second setting
Thermophilic degree, and export comparative result；Second setting comfort temperature is less than the described first setting comfort temperature.If control model is selected
The output result of unit 25 is that indoor temperature sets comfort temperature not less than second, and the second process control unit 27 is performing second
In control process, the rotating speed for controlling air-conditioning indoor fan is the rotating speed corresponding to low wind speed；If control model select unit 25
Output result is that indoor temperature sets comfort temperature less than second, and the second process control unit 27 is performing the second control process
In, the rotating speed for controlling air-conditioning indoor fan is less than the rotating speed corresponding to low wind speed.
In some other embodiment, the first process control unit 26 also includes in the first control process is performed：If inspection
The wind speed of user's setting is measured, the rotating speed for controlling air-conditioning indoor fan is the corresponding rotating speed of wind speed of user's setting；Otherwise,
Control rotating speed of the rotating speed of air-conditioning indoor fan corresponding to high wind speed.
In some other embodiment, the second process control unit 27 when the second control process is performed, select by control model
Select unit 25 and still compare indoor temperature in real time with the first setting comfort temperature；In comparative result for indoor temperature sets not less than first
Comfort temperature or indoor temperature are determined not less than the first setting comfort temperature and the difference of indoor temperature and the first setting comfort temperature
During more than setting difference, the second process control unit 27 exits the control of the second control process, and the first process control unit 26 is held
The control process of row first.
The above embodiments are merely illustrative of the technical solutions of the present invention, rather than is limited；Although with reference to foregoing reality
Example is applied to be described in detail the present invention, for the person of ordinary skill of the art, still can be to foregoing implementation
Technical scheme described in example is modified, or carries out equivalent to which part technical characteristic；And these are changed or replace
Change, do not make the spirit and scope of the essence disengaging claimed technical solution of the invention of appropriate technical solution.
Claims (10)
1. a kind of air conditioner refrigerating control method, it is characterised in that methods described includes：
In air conditioner refrigerating running, indoor temperature is obtained, calculates the temperature difference of the indoor temperature and setting indoor target temperature,
The indoor temperature difference is obtained, room temperature PID computing is carried out according to the indoor temperature difference, obtain first object frequency, and by the Indoor Temperature
Degree is made comparisons with the first setting comfort temperature；
If the indoor temperature performs the first following control process not less than the described first setting comfort temperature：
According to the compressor of the first object FREQUENCY CONTROL air-conditioning；
If the indoor temperature performs the second following control process less than the described first setting comfort temperature：
The coil temperature of A/C evaporator is obtained, the temperature difference of the coil temperature and setting coil pipe target temperature is calculated, disk is obtained
The pipe temperature difference, disk temperature PID arithmetic is carried out according to the coil pipe temperature difference, the second target frequency is obtained, according to the first object frequency
With the compressor that the smaller value in second target frequency controls air-conditioning；Meanwhile, control the rotating speed of air-conditioning indoor fan not high
In the rotating speed corresponding to low wind speed.
2. method according to claim 1, it is characterised in that methods described also includes：
Judge the indoor temperature whether less than the second setting comfort temperature；The second setting comfort temperature is less than described first
Setting comfort temperature；
If the indoor temperature in second control process, controls air conditioning chamber not less than the described second setting comfort temperature
The rotating speed of inner blower is the rotating speed corresponding to the low wind speed；
If the indoor temperature is less than the described second setting comfort temperature, in second control process, in control air conditioning chamber
The rotating speed of blower fan is less than the rotating speed corresponding to the low wind speed.
3. method according to claim 1, it is characterised in that first control process also includes：If detecting user
The wind speed of setting, the rotating speed for controlling air-conditioning indoor fan is the corresponding rotating speed of wind speed of user's setting；Otherwise, air-conditioning is controlled
The rotating speed of indoor fan is the rotating speed corresponding to high wind speed.
4. according to the method in any one of claims 1 to 3, it is characterised in that when second control process is performed,
The indoor temperature is still obtained in real time, and the indoor temperature is made comparisons with the described first setting comfort temperature, in the room
When interior temperature is not less than the described first setting comfort temperature, second control process is exited, perform first control process.
5. according to the method in any one of claims 1 to 3, it is characterised in that when second control process is performed,
The indoor temperature is still obtained in real time, and the indoor temperature is made comparisons with the described first setting comfort temperature, in the room
Interior temperature is more than not less than the difference of the described first setting comfort temperature and the indoor temperature and the first setting comfort temperature
During setting difference, second control process is exited, perform first control process.
6. a kind of air conditioner refrigerating control device, it is characterised in that described device includes：
Indoor temperature acquiring unit, for obtaining indoor temperature；
Coil temperature acquiring unit, the coil temperature for obtaining A/C evaporator；
Room temperature PID arithmetic element, for calculating the temperature difference between the indoor temperature and setting indoor target temperature, obtains indoor
The temperature difference, room temperature PID computing is carried out according to the indoor temperature difference, obtains and export first object frequency；
Disk temperature PID arithmetic unit, for calculating the temperature difference between the coil temperature and setting coil pipe target temperature, obtains coil pipe
The temperature difference, disk temperature PID arithmetic is carried out according to the coil pipe temperature difference, obtains and export the second target frequency；
Control model select unit, for comparing the indoor temperature and the first setting comfort temperature, and exports comparative result work
It is control model selection signal；
First process control unit, for the comparative result that is exported in the control model select unit for the indoor temperature not
During less than the described first setting comfort temperature, the first control process is performed, according to the pressure of the first object FREQUENCY CONTROL air-conditioning
Contracting machine；
Second process control unit, the comparative result for being exported in the control model select unit is that the indoor temperature is small
When the described first setting comfort temperature, the second control process is performed, according to the first object frequency and second target
Smaller value in frequency controls the compressor of air-conditioning, meanwhile, control the rotating speed of air-conditioning indoor fan to be not higher than corresponding to low wind speed
Rotating speed.
7. device according to claim 6, it is characterised in that the control model select unit also judges the Indoor Temperature
Whether degree exports comparative result less than the second setting comfort temperature；The second setting comfort temperature sets less than described first
Determine comfort temperature；
If the output result of the control model select unit is the indoor temperature sets comfort temperature not less than described second,
In second control process is performed, the rotating speed for controlling air-conditioning indoor fan is the low wind to second process control unit
Rotating speed corresponding to speed；
If the output result of the control model select unit is the indoor temperature less than the described second setting comfort temperature, institute
The second process control unit is stated in second control process is performed, the rotating speed for controlling air-conditioning indoor fan is low less than described
Rotating speed corresponding to wind speed.
8. device according to claim 6, it is characterised in that first process control unit is performing first control
During system, also include：If detecting the wind speed of user's setting, the rotating speed for controlling air-conditioning indoor fan is user's setting
The corresponding rotating speed of wind speed；Otherwise, rotating speed of the rotating speed of air-conditioning indoor fan corresponding to high wind speed is controlled.
9. the device according to any one of claim 6 to 8, it is characterised in that second process control unit is being held
During row second control process, the control model select unit still compares the indoor temperature with the described first setting in real time
Comfort temperature, is that the indoor temperature sets comfort temperature or the indoor temperature not less than described first in comparative result
Difference less than the described first setting comfort temperature and the indoor temperature and the first setting comfort temperature is more than setting difference
When, second process control unit exits the control of second control process, and first process control unit performs institute
State the first control process.
10. a kind of air-conditioning, it is characterised in that the air-conditioning includes the air conditioner refrigerating any one of the claims 6 to 9
Control device.
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| CN201710114535.5A CN106801983A (en) | 2017-02-28 | 2017-02-28 | Air-conditioning and its refrigeration control method and control device |
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