CN108548288A - The control method of air-conditioning - Google Patents
The control method of air-conditioning Download PDFInfo
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- CN108548288A CN108548288A CN201810277326.7A CN201810277326A CN108548288A CN 108548288 A CN108548288 A CN 108548288A CN 201810277326 A CN201810277326 A CN 201810277326A CN 108548288 A CN108548288 A CN 108548288A
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- 238000004378 air conditioning Methods 0.000 title claims abstract description 96
- 238000000034 method Methods 0.000 title claims abstract description 68
- 238000004364 calculation method Methods 0.000 claims description 2
- 238000010438 heat treatment Methods 0.000 description 16
- 230000000694 effects Effects 0.000 description 11
- 238000005057 refrigeration Methods 0.000 description 9
- 239000003921 oil Substances 0.000 description 7
- 238000010586 diagram Methods 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 4
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000004590 computer program Methods 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 238000007791 dehumidification Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 230000006641 stabilisation Effects 0.000 description 2
- 238000011105 stabilization Methods 0.000 description 2
- 208000013738 Sleep Initiation and Maintenance disease Diseases 0.000 description 1
- 239000010725 compressor oil Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 206010022437 insomnia Diseases 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
-
- 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
- F24F11/83—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers
- F24F11/84—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers using valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/86—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling compressors within refrigeration or heat pump circuits
-
- 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
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Signal Processing (AREA)
- Thermal Sciences (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The present invention relates to air-conditioning technical fields, and in particular to a kind of control method of air-conditioning.Present invention seek to address that the problem that universality is poor existing for the control method of existing air-conditioning, user experience is bad.For this purpose, the control method of the present invention includes：Calculate the temperature difference between indoor environment temperature and set temperature；According to the first fitting formula, the pass valve speed of expansion valve is calculated；According to the second fitting formula, raising frequency speed of the calculating compressor in the raising frequency stage；It controls expansion valve and closes valve to target aperture according to valve speed is closed；While expansion valve is according to valve speed pass valve to target aperture is closed, control compressor carries out raising frequency according to raising frequency speed.By above-mentioned control mode, the control method of air-conditioning of the invention can improve the universality of air-conditioning, improve the usage experience of user.
Description
Technical field
The present invention relates to air-conditioning technical fields, and in particular to a kind of control method of air-conditioning.
Background technology
With the increasingly raising of living standard, requirement of the people for quality of life is also higher and higher, and this requirement is in
Embody particularly evident on electrical appliance.By taking air-conditioning as an example, in order to meet the needs of user's fast-refrigerating/heating, to be user
Comfortable usage experience, existing air-conditioning is brought generally can all to make the quick raising frequency of compressor to higher frequency in rigid booting
It runs (such as raising frequency to maximum operation frequency).During compressor is quickly ramped up to high frequency, in order to ensure normal oil return, usually
Compressor continuous service in some or certain fixed frequencies (oil return frequency) can be forced for a period of time, to continue after oil return stabilization
Raising frequency.But force the compressor set-up mode of continuous service for a period of time in oil return frequency so that air-conditioning is quick in booting
During refrigerating/heating, the raising frequency overlong time of compressor slows down the speed that compressor reaches maximum operation frequency, in turn
Influence the effect of air-conditioning fast-refrigerating/heating.
To solve the above problem of air-conditioning, the application for a patent for invention of Publication No. CN107576016A discloses a kind of " sky
The control method and system of tune ".Specifically, the control method includes mainly：Make the compressor start of air-conditioning；Make compressor by
According to multiple setting speeds, continuous raising frequency stage by stage；After continuous raising frequency stage by stage, judge whether compressor frequency reaches first
Target frequency；When compressor frequency reaches first object frequency, compressor is made to stop raising frequency.This application is mainly pressed by cancelling
Continuous running phases during contracting machine raising frequency in oil return frequency then make compressor upon actuation with different raising frequency speed
The mode of continuous raising frequency stage by stage shortens the raising frequency time of compressor, realizes the purpose of fast-refrigerating/heating.Although above-mentioned control
Method processed solves the problems, such as that fast-refrigerating/heating effect is poor in the prior art to a certain extent, but also inevitably deposits
In following defect：First, fast-refrigerating/heating after not all user is required for air-conditioning to be switched on, nor all environment
Under the conditions of be suitable for fast-refrigerating/heating, therefore there is universality difference in above-mentioned control method in actual use.Its
Secondary, the quick raising frequency of air-conditioning can accordingly result in noise and become larger, for some special users or occasion (such as insomnia user or figure
Book shop) for, the generation of noise influences the usage experience of user very much.
Correspondingly, this field needs a kind of control method of new air-conditioning to solve the above problems.
Invention content
It is pervasive existing for the control method of existing air-conditioning in order to solve in order to solve the above problem in the prior art
The problem that property is poor, user experience is bad, the present invention provides a kind of control method of air-conditioning, the air-conditioning includes compressor, swollen
Swollen valve and outer wind turbine, the control method include：
Calculate the temperature difference between indoor environment temperature and set temperature；
According to the first fitting formula, the pass valve speed of the expansion valve is calculated；
According to the second fitting formula, calculate the compressor the raising frequency stage raising frequency speed；
It controls the expansion valve and closes valve to target aperture according to the pass valve speed；
The expansion valve according to the pass valve speed close valve to the target aperture while, before or after, control
The compressor carries out raising frequency according to the raising frequency speed；
Wherein, first fitting formula is according to the correspondence between the temperature difference and the pass valve speed of the expansion valve
It determines；Second fitting formula is determined according to the correspondence between the temperature difference and the raising frequency speed of the compressor.
In the optimal technical scheme of the control method of above-mentioned air-conditioning, the control method further includes：
Judge whether the frequency of the compressor reaches stable working frequency；
When the frequency of the compressor reaches the stable working frequency, controls the compressor and stop raising frequency；
Wherein, the stable working frequency is determined according to the correspondence of outdoor environment temperature and stable working frequency.
In the optimal technical scheme of the control method of above-mentioned air-conditioning, " calculate between indoor environment temperature and set temperature
The temperature difference " the step of after, the control method further includes：
Judge whether the temperature difference is in preset temperature difference section；
When the temperature difference is in the temperature difference section, according to second fitting formula, calculates the compressor and rising
The raising frequency speed in frequency stage.
In the optimal technical scheme of the control method of above-mentioned air-conditioning, the control method further includes：
When the temperature difference is less than the minimum value in the temperature difference section, according to second fitting formula, according to the temperature
The minimum value in poor section calculate the compressor the raising frequency stage raising frequency speed；Or
When the temperature difference is more than the maximum value in the temperature difference section, according to second fitting formula, according to the temperature
Raising frequency speed of the compressor described in the maximum value calculation in poor section in the raising frequency stage.
In the optimal technical scheme of the control method of above-mentioned air-conditioning, the target aperture is that the benchmark of the expansion valve is opened
Degree, " while the expansion valve is according to passs valve speed pass valve to the target aperture, before or after, described in control
Compressor according to the raising frequency speed carry out raising frequency " the step of further comprise：
When the aperture of the expansion valve reaches the reference opening amount, control the compressor according to the raising frequency speed into
Row raising frequency.
In the optimal technical scheme of the control method of above-mentioned air-conditioning, " expansion valve is being controlled according to pass valve speed
Degree closes valve to target aperture " the step of after, the control method further includes：
The aperture of the expansion valve is adjusted according to the target exhaust temperature of the compressor.
In the optimal technical scheme of the control method of above-mentioned air-conditioning, the control method further includes：
According to the corresponding pass between the frequency of outdoor environment temperature and/or the compressor and the rotating speed of the outer wind turbine
System adjusts the rotating speed of the outer wind turbine.
In the optimal technical scheme of the control method of above-mentioned air-conditioning, the raising frequency stage includes multiple raising frequency sub-stages,
Second fitting formula includes accordingly multiple second fittings subformula, " according to the second fitting formula, calculates the compressor
In the raising frequency speed in raising frequency stage " further comprise：
It is fitted subformula according to each second, calculates separately the raising frequency speed of each raising frequency sub-stage of compressor.
In the optimal technical scheme of the control method of above-mentioned air-conditioning, " compressor is controlled according to the raising frequency speed
The step of progress raising frequency ", further comprises：
The compressor is controlled successively according to the continuous raising frequency of raising frequency speed of each raising frequency sub-stage.
In the optimal technical scheme of the control method of above-mentioned air-conditioning, the pass valve speed of the temperature difference and the expansion valve at
Proportional relation；And/or the temperature difference and the raising frequency speed of the compressor are proportional；And/or the raising frequency
Speed is the arbitrary value in 0.5Hz-30Hz.
It will be appreciated to those of skill in the art that in the preferred technical solution of the present invention, control method includes：It calculates
The temperature difference between indoor environment temperature and set temperature；According to the first fitting formula, the pass valve speed of expansion valve is calculated；According to
Two fitting formulas, raising frequency speed of the calculating compressor in the raising frequency stage；Control expansion valve is opened according to valve speed pass valve to target is closed
Degree；Preferably, while expansion valve is according to valve speed pass valve to target aperture is closed, control compressor is carried out according to raising frequency speed
Raising frequency；Wherein, the first fitting formula is determined according to the correspondence of the temperature difference and expansion valve closed between valve speed；Second fitting is public
Formula is determined according to the correspondence between the temperature difference and the raising frequency speed of compressor.By predefining the first fitting formula and second
Fitting formula, then according to the pass valve speed and compressor of the first fitting formula and the second fitting formula calculating expansion valve in raising frequency
The raising frequency speed in stage, and then control expansion valve and close valve to target aperture according to valve speed is closed, and valve is being closed to target aperture
Compressor is controlled simultaneously and carries out raising frequency according to raising frequency speed, and the control method of air-conditioning of the invention can improve the pervasive of air-conditioning
Property, improve the usage experience of user.
Specifically, the temperature difference between indoor environment temperature and set temperature respectively with the pass valve speed of expansion valve and compression
The raising frequency speed of machine is proportional.In temperature difference hour, illustrate indoor environment temperature close to set temperature, user's control air-conditioning into
The hope of row fast-refrigerating/heating is not strong, at this time according to the first fitting formula and the calculated expansion of the second fitting formula
The pass valve speed of valve and the raising frequency speed of compressor are relatively low, and expansion valve closes valve to target aperture according to the pass valve speed
When, compressor carries out raising frequency according to the raising frequency speed, can improve expansion while ensureing the refrigerating/heating effect of air-conditioning
The operation stability of valve and compressor reduces operation noise；When the temperature difference is big, illustrate indoor environment temperature apart from set temperature compared with
Far, there is an urgent need to air-conditionings to carry out fast-refrigerating/heating at this time by user, at this time according to the first fitting formula and the second fitting formula meter
The pass valve speed of the expansion valve of calculating and the raising frequency speed of compressor are relatively high, and expansion valve is according to the fast quick-closing valve of pass valve speed
When to target aperture, compressor is according to the quick raising frequency of raising frequency speed, so as to realize fast-refrigerating/heating of air-conditioning, pole
The earth shortens the time of refrigerating/heating, and good usage experience is brought for user.Also, it through inventor's repetition test, sees
It surveys, analyzes and compare, it, can be relative to existing in the case where technical solution using the present invention carries out fast-refrigerating/heating
The raising frequency speed of air-conditioning is promoted several times, even decades of times by technology, realizes the jump frequency of air-conditioning.In addition, by compressor start
So that expansion valve opening is decreased to target aperture before, the aperture of expansion valve can also be made in compressor start and compressor
Match, expansion valve opening occurs with the bad situation of compressor matching degree caused by avoiding expansion valve from starting together with compressor,
Further increase the refrigerating/heating effect after compressor start.
Description of the drawings
With reference to the accompanying drawings and in conjunction with the refrigeration mode of air-conditioning come describe the present invention air-conditioning control method.In attached drawing：
Fig. 1 is the flow diagram of the control method of the air-conditioning of the present invention；
Fig. 2 be the present invention air-conditioning control method in expansion valve pass valve speed curve diagram；
Fig. 3 be the present invention air-conditioning control method in compressor raising frequency speed curve diagram.
Specific implementation mode
The preferred embodiment of the present invention described with reference to the accompanying drawings.It will be apparent to a skilled person that this
A little embodiments are used only for explaining the technical principle of the present invention, it is not intended that limit the scope of the invention.Although for example,
Present invention combination air-conditioning is described for running in cooling mode, but this application scenarios are not unalterable,
In the case of without departing from the principle of the invention, those skilled in the art can also apply the inventive method to other applied fields
Scape, such as application and air-conditioning heating mode or dehumidification mode.
Firstly the need of explanation, usual air conditioner all includes indoor unit and outdoor unit, and being provided with interior in indoor unit changes
Hot device, inner blower etc. are provided with compressor, electric expansion valve, outer wind turbine and outdoor heat exchanger etc. in outdoor unit.Lead in indoor unit
It is often additionally provided with the control system for controlling air-conditioning work, if control system includes control module, judgment module, computing module
With acquisition module etc..Wherein, the physical form of control module, judgment module, computing module and acquisition module can be only each other
Vertical, naturally it is also possible to the functional unit being integrated on a physical module.As the control system of air-conditioning include memory and
Processor, and the computer program that is stored in memory and can run on a processor, the computer program can be completed
The function of above-mentioned control module, judgment module and acquisition module.The physics setting of the above air-conditioning is that the prior art is hollow
The conventional arrangement mode of tune should not be seen as the limitation of the control method to being invented.
It is the flow diagram of the control method of the air-conditioning of the present invention referring to Fig. 1, Fig. 1.
As shown in Figure 1, in order to solve, universality is poor existing for the control method of existing air-conditioning, user experience is bad asks
Topic, the present invention provides a kind of control method of air-conditioning, which mainly includes the following steps that：
The temperature difference between S100, calculating indoor environment temperature and set temperature；Such as passed by the way that temperature is arranged in machine indoors
The mode of sensor obtains indoor environment temperature, then the instruction acquisition for receiving user by air-conditioning is controlled to the set temperature of user
System processed obtains the temperature between indoor environment temperature and set temperature by the difference of calculating indoor environment temperature and set temperature
Difference；
S200, according to the first fitting formula, calculate the pass valve speed of electric expansion valve, such as the first fitting formula according to the temperature difference
It is determined with the correspondence of electric expansion valve closed between valve speed, and the temperature difference is directly proportional to the pass valve speed of electric expansion valve
Relationship, the i.e. temperature difference are bigger, and the pass valve speed of electric expansion valve is faster, and the control system of air-conditioning calculates electricity according to the first fitting formula
Sub- expansion valve closes the pass valve speed in valve stage；
S300, according to the second fitting formula, calculate raising frequency speed of the compressor in the raising frequency stage, such as the second fitting formula root
It is determined according to the correspondence between the temperature difference and the raising frequency speed of compressor, and temperature difference pass directly proportional to the raising frequency speed of compressor
System, the temperature difference is bigger, and the raising frequency speed of compressor is faster, and the control system of air-conditioning calculates compressor raising frequency according to the second fitting formula
The raising frequency speed in stage；
S400, control electric expansion valve close valve to target aperture according to valve speed is closed, it is preferable that target aperture is that electronics is swollen
The reference opening amount of swollen valve, after calculating the pass valve speed of electric expansion valve, the control system of air-conditioning control expansion valve according to
It closes valve speed and closes valve to reference opening amount；
S500, electric expansion valve close valve to target aperture while, before or after, control compressor according to raising frequency speed
Degree carry out raising frequency, it is preferable that electric expansion valve close valve to target aperture while, air-conditioning control system control compressor according to
The continuous raising frequency of raising frequency speed or stage by stage continuous raising frequency；
S600, judge whether the frequency of compressor reaches stable working frequency, as the control system of air-conditioning obtains pressure in real time
The current frequency of contracting machine, and current frequency is compared with stable working frequency；
S700, when the frequency of compressor reaches stable working frequency, make compressor stop raising frequency, such as reached in current frequency
When to stable working frequency, control system control compressor maintains stable working frequency and works on.
It can be seen from the above description that by predefining the first fitting formula and the second fitting formula, then basis
First fitting formula and the second fitting formula calculate the raising frequency speed of pass the valve speed and compressor of expansion valve, and then control expansion
Valve according to close valve speed close valve to target aperture, and while closing valve to target aperture control compressor according to raising frequency speed into
Row raising frequency, the control method of air-conditioning of the invention can improve the universality of air-conditioning, improve the usage experience of user.In other words
It says, the present invention solves the problems, such as that universality is poor existing for the control method of existing air-conditioning, user experience is bad, improves sky
The comfort of tune, improves user experience.
Referring to Fig. 2 and Fig. 3, the principle that the present invention is further explained.Wherein, Fig. 2 is the control of the air-conditioning of the present invention
The pass valve speed curve diagram of expansion valve in method, Fig. 3 be the present invention control method in compressor raising frequency speed curve diagram.
As shown in Fig. 2, in a kind of possible embodiment, the pass valve speed of the temperature difference and expansion valve in the first fitting formula
It is proportional, it is preferable that target aperture is the reference opening amount of expansion valve.For example, the first fitting formula of valve speed is closed
Can be：vp=k ' △ T+b ', wherein vp(P/s, wherein P are the aperture unit of expansion valve to the pass valve speed of expression expansion valve
" step "), △ T represent the temperature difference (DEG C) between indoor environment temperature and set temperature, and k ' is proportionality coefficient, and b ' is constant.First
The proportionality coefficient k ' and constant b ' of fitting formula can be determined as follows：Assuming that the value range of temperature difference △ T is 0-10
DEG C, when enabling △ T=0 as a result, close valve speed vpminWhen=30P/s, △ T=10 DEG C, valve speed v is closedpmax=80P/s, is acquired, k '
=5, b '=30, therefore vp=5 △ T+30.After calculating the first fitting formula, the first fitting formula is preset in air-conditioning
In control system, so, when user is switched on selection mode and after adjust set temperature every time, control system just can determine that
The pass valve speed of expansion valve, and close valve work according to the pass valve speed control expansion valve.
As shown in figure 3, in a kind of possible embodiment, there are one compressors the raising frequency stage, and the raising frequency rank
The temperature difference and the raising frequency speed of compressor are proportional in second fitting formula of section, it is preferable that raising frequency speed is 0.5Hz-
Arbitrary value in 30Hz.For example, the second fitting formula of raising frequency speed can be：vy=k △ T+b, wherein vyIndicate pressure
The raising frequency speed (Hz/s) of contracting machine, △ T represent the temperature difference (DEG C) between indoor environment temperature and set temperature, and k is proportionality coefficient,
B is constant.The proportionality coefficient k and constant b of second fitting formula can be determined as follows：Assuming that the value of temperature difference △ T
Ranging from 0-10 DEG C, when enabling △ T=0 as a result, raising frequency speed vyminWhen=0.5Hz/s, △ T=10 DEG C, raising frequency speed vymax=
30Hz/s is acquired, k=2.95, b=0.5, therefore vy=2.95 △ T+0.5.After calculating the second fitting formula, by second
Fitting formula is preset in the control system of air-conditioning, so, when user be switched on every time selection mode and adjust setting temperature
After degree, control system just can determine that the raising frequency speed of compressor, and work according to the raising frequency speed control compressor raising frequency.
Further, the value range of temperature difference △ T can also be divided into one or more temperature difference sections, in temperature difference △ T
When falling into one of temperature difference section, corresponding raising frequency speed is calculated using the second fitting formula.For example, taking temperature difference △ T
Value range is divided into three sections (- ∞, 5), [5,10] and (10 ,+∞), calculated temperature difference △ T be in [5,10] this
When a section, using the second fitting formula vy=k △ T+b calculate raising frequency speed, when temperature difference △ T be in (- ∞, 5) or (10 ,+
∞) when section, then the temperature difference is equal to raising frequency speed when 5 and 10 (i.e. the minimum values and maximum value of temperature difference section [5,10]) respectively
Raising frequency speed as compressor under the temperature difference.Thus, the raising frequency speed of compressor can be prevented excessive or it is too small to pressure
Damage caused by contracting machine.
Referring to table 1, in a kind of possible embodiment, stable working frequency can according to outdoor environment temperature with
The correspondence of stable working frequency determines.
The 1 stable working frequency table of comparisons of table
Wherein, TaoRepresent outdoor environment temperature, fwRepresent the stable working frequency of compressor, feRepresent the specified of compressor
Working frequency.
In a kind of possible embodiment, preferably to improve the experience that user uses air-conditioning, refrigeration effect is promoted, is carried
The step of job stability and service life of high compressor, control electric expansion valve is according to valve speed pass valve to target aperture is closed
Later, control method further includes：
The aperture of electric expansion valve is adjusted according to the target exhaust temperature of compressor.
Referring to table 2, in a kind of possible embodiment, preferably to improve the experience that user uses air-conditioning, carry
Refrigeration effect is risen, improves the job stability and service life of compressor, the control method of air-conditioning of the invention can also include
Following steps：
According to the correspondence between outdoor environment temperature and the rotating speed of outer wind turbine, the rotating speed of outer wind turbine is adjusted.
2 outer rotation speed of fan control table (1) of table
| Tao(℃) | ≤22 | 22-29 | ≥29 |
| rw(r/min) | 400 | 800 | 1200 |
Wherein, TaoRepresent outdoor environment temperature, rwRepresent the rotating speed of outer wind turbine.
By above-mentioned control mode, the advantages of control method of air-conditioning of the invention, is：It is quasi- by predefining first
Formula and the second fitting formula are closed, pass valve speed of the expansion valve in the pass valve stage is then calculated according to the first fitting formula, according to
Second fitting formula calculates raising frequency speed of the compressor in the raising frequency stage, and then controls expansion valve and close valve to base according to valve speed is closed
Quasi- aperture, and control compressor while closing valve to reference opening amount and carry out raising frequency according to raising frequency speed, air-conditioning of the invention
Control method can improve the universality of air-conditioning, improve the usage experience of user.
Specifically, the temperature difference between indoor environment temperature and set temperature is fast with the raising frequency of expansion valve and compressor respectively
It spends proportional.In temperature difference hour, illustrate indoor environment temperature close to set temperature, user's control air-conditioning carries out fast-refrigerating
Hope it is not strong, at this time according to the pass valve speed and pressure of the first fitting formula and the calculated expansion valve of the second fitting formula
The raising frequency speed of contracting machine is relatively low, and when expansion valve closes valve to reference opening amount according to the pass valve speed, compressor is according to the liter
Frequency speed carries out raising frequency, while ensureing the refrigeration effect of air-conditioning, can improve expansion valve and compressor operation stability,
Reduce operation noise；When the temperature difference is big, illustrate indoor environment temperature far from set temperature, there is an urgent need to air-conditioning progress at this time by user
Fast-refrigerating, at this time according to the pass valve speed and compressor of the first fitting formula and the calculated expansion valve of the second fitting formula
Raising frequency speed is relatively high, expansion valve according to the pass fast quick-closing valve of valve speed to reference opening amount when, compressor according to the raising frequency speed
Quick raising frequency is spent, so as to realize the fast-refrigerating of air-conditioning, highly shortened the time of refrigeration, is brought for user good
Usage experience.
By making expansion valve opening be decreased to reference opening amount before compressor start, the aperture of expansion valve can also be made to exist
It is matched with compressor when compressor start, expansion valve opening and compressor caused by avoiding expansion valve from starting together with compressor
The bad situation of matching degree occurs, and further increases the refrigeration effect after compressor start.Pass through outdoor environment temperature and compression
The parameters such as machine working frequency correspond to the rotating speed of the stable working frequency and outer wind turbine that determine compressor, close valve by electric expansion valve
The parameters such as the aperture of electric expansion valve, controlling party of the invention are determined after to reference opening amount according to the target exhaust temperature of compressor
Method can also provide the running environment to match for compressor in compressor operating, further increase the work effect of compressor
Rate and job stability improve the operational effect of air-conditioning.
Further, through inventor's repetition test, observation is analyzed and is compared and obtains, the oil spitting amount to compressor, electricity are passed through
The aperture of sub- expansion valve, the rotating speed of outer wind turbine and oil-liquid separator etc. are accurately controlled, and are ensureing compressor operating stabilization
Under the premise of, the raising frequency speed of compressor can be controlled steadily in 0.5-30Hz/s, and especially maximum raising frequency speed can reach
To surprising 30Hz/s.And those skilled in the art understand that, the raising frequency speed of compressor is mostly in the prior art
0.5-1Hz/s, few compressors can reach the raising frequency speed of the present invention when keeping steady operation.Thus, it is of the invention
The raising frequency speed of air-conditioning can be promoted several times, even decades of times by air-conditioning compared with the existing technology when carrying out fast-refrigerating, from
And realize the jump frequency of air-conditioning, significantly improve the usage experience of user.
Certainly, the above embodiment is used only for the principle illustrated the present invention, it is not intended that in the limitation present invention's
Protection domain, under conditions of without departing from the principle of the invention, those skilled in the art can also do arbitrary form to above-mentioned parameter
Adjustment, as long as the technical solution after adjustment can improve the condition of raising frequency speed under the premise of ensureing compressor normal oil return
.For example, the parameter of the form and air-conditioning of the first fitting formula and the second fitting formula can be based on different application scenarios
It is adjusted, such as the second fitting formula can also be vy=k △ T2+ b etc..For another example, the number in temperature difference section and endpoint value are not one
At constant, those skilled in the art can be adjusted based on practical application scene.For another example, target aperture can also be that electronics is swollen
Opening value near other apertures or reference opening amount of swollen valve, accordingly when target aperture is less than reference opening amount, compressor can
To start raising frequency after reaching target aperture in electric expansion valve, when target opening value is more than reference opening amount, compressor can be with
Start raising frequency before electric expansion valve reaches target aperture.For another example, electric expansion valve can also basis after reaching reference opening amount
Correspondence between the aperture of the frequency and electric expansion valve of outdoor environment temperature and/or compressor is adjusted, outer wind turbine
Rotating speed can also be adjusted according to the correspondence between outdoor environment temperature and the frequency and the rotating speed of outer wind turbine of compressor
Whole (such as the following table 3).
3 outer rotation speed of fan control table (2) of table
Wherein, TaoOutdoor environment temperature is represented, f represents the working frequency of compressor, rwRepresent the rotating speed of outer wind turbine.
In addition, further to promote the refrigeration effect of air-conditioning, the raising frequency stage of compressor can also further be segmented
For multiple raising frequency sub-stages, accordingly, each raising frequency sub-stage includes one second fitting subformula, the second fitting subformula
Between can be coefficient difference, can also be the difference of formula.It is risen for example, the raising frequency stage of compressor may include three
Frequency sub-stage, each raising frequency sub-stage corresponding second fitting subformula is respectively vy1=k1△T+b1、vy2=k2△T+b2、vy3
=k3△T+b3.After user adjusts set temperature, control system is fitted subformula according to each second respectively and calculates accordingly
The raising frequency speed of each raising frequency sub-stage of compressor, then control compressor according to each raising frequency sub-stage raising frequency speed according to
Secondary raising frequency.The relationship for such as calculating the raising frequency speed of three raising frequency sub-stages is vy1>vy2>vy3(certainly, which may be
Other are such as vy1<vy2<vy3Deng), then controlling compressor raising frequency in such a way that raising frequency speed is gradually reduced, realize that air-conditioning is quick
While refrigeration, ensures that compressor oil return is normal, be gradually reduced process noise, prolong the service life.
With reference to Fig. 1 to Fig. 3, brief Jie is done to a kind of workflow of the air-conditioning of the control method of the application present invention
It continues.The course of work of air-conditioning can be：
Air-conditioning, which is switched on → selects, refrigeration mode and adjusts the temperature of set temperature → calculating indoor environment temperature and set temperature
Difference for 10 DEG C → according to the first fitting formula calculate expansion valve pass valve speed vp, compressor is calculated according to the second fitting formula
Raising frequency speed vy, while according to Tables 1 and 2, determining stable working frequency fwWith the rotating speed r of outer wind turbinew→ electric expansion valve according to
Close valve speed vpFast quick-closing valve, outer wind turbine is according to rotating speed rwWhen valve to reference opening amount is closed in operation → electric expansion valve, compressor according to
Raising frequency speed vyCarry out quick raising frequency → compressor reaches stable working frequency f after a period of timewAfter maintain the frequency fortune
Turn, the aperture B of electric expansion valve is adjusted according to the target exhaust temperature of compressor, the rotating speed r of outer wind turbinewIt is adjusted according to table 3
Section.
Finally, it should be noted that although present embodiment in a chiller mode for be described, it is clear that it is this to answer
Not unalterable with scene, in the case of without departing from the principle of the invention, those skilled in the art can also be by the present invention's
Control method is applied to air-conditioning others pattern, such as the heating mode or dehumidification mode of application and air-conditioning.
So far, it has been combined preferred embodiment shown in the drawings and describes technical scheme of the present invention, still, this field
Technical staff is it is easily understood that protection scope of the present invention is expressly not limited to these specific implementation modes.Without departing from this
Under the premise of the principle of invention, those skilled in the art can make the relevant technologies feature equivalent change or replacement, these
Technical solution after change or replacement is fallen within protection scope of the present invention.
Claims (10)
1. a kind of control method of air-conditioning, the air-conditioning includes compressor, expansion valve and outer wind turbine, which is characterized in that the control
Method processed includes：
Calculate the temperature difference between indoor environment temperature and set temperature；
According to the first fitting formula, the pass valve speed of the expansion valve is calculated；
According to the second fitting formula, calculate the compressor the raising frequency stage raising frequency speed；
It controls the expansion valve and closes valve to target aperture according to the pass valve speed；
While the expansion valve closes valve to the target aperture according to the pass valve speed, before or after, described in control
Compressor carries out raising frequency according to the raising frequency speed；
Wherein, first fitting formula is true according to the correspondence of the temperature difference and the expansion valve closed between valve speed
It is fixed；Second fitting formula is determined according to the correspondence between the temperature difference and the raising frequency speed of the compressor.
2. the control method of air-conditioning according to claim 1, which is characterized in that the control method further includes：
Judge whether the frequency of the compressor reaches stable working frequency；
When the frequency of the compressor reaches the stable working frequency, controls the compressor and stop raising frequency；
Wherein, the stable working frequency is determined according to the correspondence of outdoor environment temperature and stable working frequency.
3. the control method of air-conditioning according to claim 1, which is characterized in that " calculate indoor environment temperature and setting temperature
After the step of temperature difference between degree ", the control method further includes：
Judge whether the temperature difference is in preset temperature difference section；
When the temperature difference is in the temperature difference section, according to second fitting formula, the compressor is calculated in raising frequency rank
The raising frequency speed of section.
4. the control method of air-conditioning according to claim 3, which is characterized in that the control method further includes：
When the temperature difference is less than the minimum value in the temperature difference section, according to second fitting formula, according to the temperature difference area
Between minimum value calculate the compressor the raising frequency stage raising frequency speed；Or
When the temperature difference is more than the maximum value in the temperature difference section, according to second fitting formula, according to the temperature difference area
Between maximum value calculation described in compressor the raising frequency stage raising frequency speed.
5. the control method of air-conditioning according to claim 1, which is characterized in that the target aperture is the expansion valve
Reference opening amount, " the expansion valve according to the pass valve speed close valve to the target aperture while, before or after, control
Make the compressor according to the raising frequency speed carry out raising frequency " the step of further comprise：
When the aperture of the expansion valve reaches the reference opening amount, controls the compressor and risen according to the raising frequency speed
Frequently.
6. the control method of air-conditioning according to claim 1, which is characterized in that " controlling the expansion valve according to described
Close valve speed and close valve to target aperture " the step of after, the control method further includes：
The aperture of the expansion valve is adjusted according to the target exhaust temperature of the compressor.
7. the control method of air-conditioning according to claim 1, which is characterized in that the control method further includes：
According to the correspondence between outdoor environment temperature and/or the frequency and the rotating speed of the outer wind turbine of the compressor, adjust
The rotating speed of the whole outer wind turbine.
8. the control method of air-conditioning according to any one of claim 1 to 7, which is characterized in that the raising frequency stage packet
Multiple raising frequency sub-stages are included, second fitting formula includes accordingly multiple second fittings subformula, " public according to the second fitting
Formula, calculate the compressor the raising frequency stage raising frequency speed " further comprise：
It is fitted subformula according to each second, calculates separately the raising frequency speed of each raising frequency sub-stage of compressor.
9. the control method of air-conditioning according to claim 8, which is characterized in that " control the compressor according to the liter
The step of frequency speed progress raising frequency ", further comprises：
The compressor is controlled successively according to the continuous raising frequency of raising frequency speed of each raising frequency sub-stage.
10. the control method of air-conditioning according to claim 1, which is characterized in that the pass of the temperature difference and the expansion valve
Valve speed is proportional；And/or the temperature difference and the raising frequency speed of the compressor are proportional；And/or
The raising frequency speed is the arbitrary value in 0.5Hz-30Hz.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109539648A (en) * | 2018-11-02 | 2019-03-29 | 珠海格力电器股份有限公司 | A kind of compressor of refrigeration equipment adds Unloading Control method and server |
| CN110848899A (en) * | 2019-10-12 | 2020-02-28 | 珠海格力电器股份有限公司 | Variable frequency air conditioner operation control method, computer readable storage medium and air conditioner |
| CN112161374A (en) * | 2020-09-29 | 2021-01-01 | 珠海格力电器股份有限公司 | Variable frequency air conditioner, control method thereof and computer readable storage medium |
| CN114234412A (en) * | 2021-11-26 | 2022-03-25 | 青岛海尔空调器有限总公司 | Method and device for controlling air conditioner, air conditioner and storage medium |
| CN114608128A (en) * | 2022-02-07 | 2022-06-10 | 青岛海尔空调器有限总公司 | Method and device for controlling temperature of air conditioner chip, air conditioner and storage medium |
| CN115451621A (en) * | 2021-06-09 | 2022-12-09 | 青岛海特生物医疗有限公司 | Method and device for adjusting frequency of compressor and compressor |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114234412B (en) * | 2021-11-26 | 2024-06-18 | 青岛海尔空调器有限总公司 | Method and device for controlling air conditioner, air conditioner and storage medium |
| CN114608128A (en) * | 2022-02-07 | 2022-06-10 | 青岛海尔空调器有限总公司 | Method and device for controlling temperature of air conditioner chip, air conditioner and storage medium |
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Application publication date: 20180918 |