CN108548290A - The control method of air-conditioning under heating mode - Google Patents
The control method of air-conditioning under heating mode Download PDFInfo
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- CN108548290A CN108548290A CN201810277342.6A CN201810277342A CN108548290A CN 108548290 A CN108548290 A CN 108548290A CN 201810277342 A CN201810277342 A CN 201810277342A CN 108548290 A CN108548290 A CN 108548290A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/65—Electronic processing for selecting an operating mode
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—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
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
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- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (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 the control method of air-conditioning under a kind of heating mode.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：Obtain indoor environment temperature；According to the first fitting formula, the pass valve speed of expansion valve is calculated；According to the second fitting formula, the acceleration of outer wind turbine is calculated；According to third 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；The outer wind turbine of control is according to acceleration raising speed to rotating speed of target；Preferably, when expansion valve closes valve to target aperture and outer wind turbine raising speed to rotating speed of target, control compressor carries out raising frequency according to raising frequency speed.By above-mentioned control mode, the control method of air-conditioning can improve the universality of air-conditioning under heating mode of the invention, improve the usage experience of user.
Description
Technical field
The present invention relates to air-conditioning technical fields, and in particular to the control method of air-conditioning under a kind of heating mode.
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.It is easypro to be brought for user in order to meet the needs of user quickly heats by taking air-conditioning as an example
Suitable usage experience, existing air-conditioning generally can all be such that the quick raising frequency of compressor to higher frequency runs (such as in rigid booting
Raising frequency is to maximum operation frequency).During compressor is quickly ramped up to high frequency, in order to ensure normal oil return, it will usually force
Compressor continuous service in some or certain fixed frequencies (oil return frequency) for a period of time, waits for that subsequent frequency of continuing rising is stablized in oil return.
But force the compressor set-up mode of continuous service for a period of time in oil return frequency so that air-conditioning was quickly heated in booting
Cheng Zhong, the raising frequency overlong time of compressor slow down the speed that compressor reaches maximum operation frequency, and then it is quick to influence air-conditioning
The effect of 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 quickly heated.Although above-mentioned control method
It solves the problems, such as that quick heating effect is poor in the prior art to a certain extent, but is also inevitably present following defect：
First, not all user quickly heats after being required for air-conditioning to be switched on, nor being suitable under all environmental conditions quickly
Heating, therefore there is universality difference in actual use in above-mentioned control method.Secondly, the quick raising frequency of air-conditioning can be corresponding
Ground causes noise to become larger, and for some special users or occasion (such as insomnia user or library), the generation of noise is non-
Often influence the usage experience of user.
Correspondingly, this field needs a kind of control method of air-conditioning under new heating mode 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 under heating mode, the air-conditioning includes
Compressor, expansion valve and outer wind turbine, the control method include：
Obtain indoor environment temperature；
According to the first fitting formula, the pass valve speed of the expansion valve is calculated；
According to the second fitting formula, the acceleration of the outer wind turbine is calculated；
According to third 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 outer wind turbine is according to the acceleration raising speed to rotating speed of target；
When the expansion valve and/or the outer wind turbine reach setting condition, the compressor is controlled according to the raising frequency
Speed carries out raising frequency；
Wherein, first fitting formula is according between the indoor environment temperature and the pass valve speed of the expansion valve
Correspondence determines that second fitting formula is according to pair between the indoor environment temperature and the acceleration of the outer wind turbine
It should be related to determination, the third fitting formula is according to pair between the indoor environment temperature and the raising frequency speed of the compressor
It should be related to determination, and the raising frequency speed of the indoor environment temperature and the compressor is inversely.
Under above-mentioned heating mode in the optimal technical scheme of the control method of 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, the compressor is made to stop raising frequency；
Wherein, the stable working frequency is determined according to the correspondence of outdoor environment temperature and stable working frequency.
Under above-mentioned heating mode in the optimal technical scheme of the control method of air-conditioning, the step of " obtaining indoor environment temperature "
After rapid, the control method further includes：
Judge whether the indoor environment temperature is in preset temperature range；
When the indoor environment temperature is in the temperature range, according to the third fitting formula, the pressure is calculated
Raising frequency speed of the contracting machine in the raising frequency stage.
Under above-mentioned heating mode in the optimal technical scheme of the control method of air-conditioning, the control method further includes：
When the indoor environment temperature is less than the minimum value of the temperature range, according to the third fitting formula, press
According to the temperature range minimum value calculate the compressor the raising frequency stage raising frequency speed；Or
When the indoor environment temperature is more than the maximum value of the temperature range, according to the third fitting formula, press
Raising frequency speed of the compressor described in maximum value calculation according to the temperature range in the raising frequency stage.
Under above-mentioned heating mode in the optimal technical scheme of the control method of air-conditioning, the target aperture is the expansion
The reference opening amount of valve, the rotating speed of target is the maximum (top) speed of the outer wind turbine, " in the expansion valve and/or the outer wind turbine
When reaching setting condition, control 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, and/or the outer wind turbine reach it is described most
When big rotating speed, controls the compressor and carry out raising frequency according to the raising frequency speed.
Under above-mentioned heating mode in the optimal technical scheme of the control method of air-conditioning, " control the expansion valve according to
The pass valve speed 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.
Under above-mentioned heating mode in the optimal technical scheme of the control method of air-conditioning, " the control outer wind turbine according to
The acceleration raising speed is to rotating speed of target " the step of after, 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.
Under above-mentioned heating mode in the optimal technical scheme of the control method of air-conditioning, the raising frequency stage includes multiple liters
Frequency sub-stage, the third fitting formula include accordingly that multiple thirds are fitted subformula, " according to third fitting formula, are calculated
Raising frequency speed of the compressor in the raising frequency stage " further comprises：
It is fitted subformula according to each third, calculates separately the raising frequency speed of each raising frequency sub-stage of compressor.
Under above-mentioned heating mode in the optimal technical scheme of the control method of air-conditioning, " compressor is controlled according to institute
State raising frequency speed carry out raising frequency " the step of further comprise：
The compressor is controlled successively according to the continuous raising frequency of raising frequency speed of each raising frequency sub-stage.
Under above-mentioned heating mode in the optimal technical scheme of the control method of air-conditioning, the indoor environment temperature with it is described
The pass valve speed of expansion valve is inversely；And/or the acceleration of the indoor environment temperature and the outer wind turbine is at anti-
The relationship of ratio；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, air-conditioning under heating mode
Control method includes：Obtain indoor environment temperature；According to the first fitting formula, the pass valve speed of expansion valve is calculated；According to second
Fitting formula calculates the acceleration of outer wind turbine；According to third 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；In expansion valve according to the same of pass valve speed pass valve to target aperture
When, before or after, control outer wind turbine according to acceleration raising speed to rotating speed of target；Preferably, valve to target is closed in expansion valve to open
Degree and outer wind turbine raising speed to rotating speed of target while, control compressor according to raising frequency speed progress raising frequency；Wherein, the first fitting is public
Formula determines that the second fitting formula is according to indoor ring according to the correspondence of indoor environment temperature and expansion valve closed between valve speed
Correspondence between border temperature and the acceleration of outer wind turbine determines that third fitting formula is according to indoor environment temperature and compressor
Raising frequency speed between correspondence determine that and the raising frequency speed of indoor environment temperature and compressor is inversely.It is logical
It crosses and predefines the first fitting formula, the second fitting formula and third fitting formula, then intended according to the first fitting formula, second
It closes formula and third fitting formula calculates separately the pass valve speed of expansion valve, the acceleration of outer wind turbine and compressor in the raising frequency stage
Raising frequency speed, and then control expansion valve according to close valve speed close valve to target aperture, outer wind turbine according to acceleration raising speed to mesh
Rotating speed is marked, and controls compressor while closing valve to target aperture and raising speed to rotating speed of target and is risen according to raising frequency speed
Frequently, the control method of air-conditioning can improve the universality of air-conditioning under heating mode of the invention, improve the usage experience of user.
Specifically, indoor environment temperature respectively with expansion valve close valve speed, outer wind turbine acceleration and compressor
Raising frequency speed inversely.When environment temperature is relatively high indoors, illustrate what user's control air-conditioning was quickly heated
Hope is not strong, and the hope that user's control air-conditioning is quickly heated is not strong, at this time according to the first fitting formula, second
The raising frequency speed for closing valve speed, the acceleration of outer wind turbine and compressor of fitting formula and the calculated expansion valve of third fitting formula
Spend relatively low, expansion valve closes that valve is to target aperture and outer wind turbine is according to acceleration raising speed to rotating speed of target according to pass valve speed
When, compressor carries out raising frequency according to the raising frequency speed, can improve expansion valve, outer while ensureing the heating effect of air-conditioning
The operation stability of wind turbine and compressor reduces operation noise；When environment temperature is relatively low indoors, illustrate user at this time
There is an urgent need to air-conditionings quickly to be heated, and be calculated at this time according to the first fitting formula, the second fitting formula and third fitting formula
The raising frequency speed for closing valve speed, the acceleration of outer wind turbine and compressor of the expansion valve gone out is relatively high, and expansion valve is according to the pass
The fast quick-closing valve of valve speed to target aperture and outer wind turbine according to the quick raising speed of acceleration to rotating speed of target when, compressor is according to the liter
The quick raising frequency of frequency speed highly shortened the time of heating so as to realize the quick heating of air-conditioning, be brought for user good
Good usage experience.Also, through inventor's repetition test, observation is analyzed and is compared, and is carried out in technical solution using the present invention
Quickly in the case of heating, can the raising frequency speed of air-conditioning be promoted into several times, even decades of times compared with the existing technology, realized empty
The jump frequency of tune.In addition, by making expansion valve opening be decreased to target aperture before compressor start, expansion valve can also be made
Aperture is matched in compressor start with compressor, caused by avoiding expansion valve from starting together with compressor expansion valve opening with
The bad situation of compressor matching degree occurs, and further increases the heating effect after compressor start.By in compressor start
Outer wind turbine raising speed is controlled before to rotating speed of target, that is, it is that compressor and outdoor unit dissipate to drive air flowing in advance with high rotating speed
Heat makes just to possess good radiating condition when compressor start, be compressed caused by avoiding outer wind turbine from starting together with compressor
The bad situation of machine heat dissipation effect occurs, and further increases the heating effect after compressor start.
Description of the drawings
With reference to the accompanying drawings come describe the present invention air-conditioning control method.In attached drawing：
Fig. 1 be the present invention heating mode under air-conditioning control method flow diagram；
Fig. 2 be the present invention heating mode under air-conditioning control method in expansion valve pass valve speed curve diagram；
Fig. 3 be the present invention heating mode under air-conditioning control method China and foreign countries wind turbine acceleration plots；
Fig. 4 be the present invention heating mode under 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,
The third fitting formula of the raising frequency speed of compressor is with v in specific implementation modey=kTin+ b is exemplifies, but this fitting
The form of formula is non-unalterable, and those skilled in the art can as needed make adjustment to it, to adapt to specifically answer
Use occasion.For example, third fitting formula can also be vy=k/Tin+ b etc..
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 (following or expansion valve), outer wind turbine and outdoor and change in outdoor unit
Hot device etc..The control system for controlling air-conditioning work is further typically provided in indoor unit, as control system include control module,
Judgment module, computing module and acquisition module etc..Wherein, the physics of control module, judgment module, computing module and acquisition module
Form can be independent of each other, naturally it is also possible to the functional unit being integrated on a physical module.Such as the control of air-conditioning
System includes memory and processor, and the computer program that is stored in memory and can run on a processor, the meter
Calculation machine program can complete the function of above-mentioned control module, judgment module and acquisition module.The physics of the above air-conditioning is arranged
It is the conventional arrangement mode of air-conditioning in the prior art, the limitation of the control method to being invented should not be seen as.
Referring to the flow diagram of the control method of air-conditioning under the heating mode that Fig. 1, Fig. 1 are the present invention.
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 under heating mode, which mainly includes the following steps that：
S100, indoor environment temperature is obtained；Such as after air-conditioning is switched on and selects heating mode, by being arranged in machine indoors
The mode of temperature sensor obtains indoor environment temperature；
S200, according to the first fitting formula, calculate the pass valve speed of electric expansion valve, such as the first fitting formula according to interior
The correspondence of environment temperature and electric expansion valve closed between valve speed determines, and indoor environment temperature and electric expansion valve
Pass valve speed inversely, i.e., indoor environment temperature is lower, and the pass valve speed of electric expansion valve is faster, the control system of air-conditioning
System calculates the pass valve speed that electric expansion valve closes the valve stage according to the first fitting formula；
S300, according to the second fitting formula, the acceleration of outer wind turbine is calculated, if the second fitting formula is according to indoor environment temperature
It spends and is determined the correspondence between the acceleration of outer wind turbine, and the acceleration of indoor environment temperature and outer wind turbine is inversely proportional pass
System, i.e., indoor environment temperature is lower, and the acceleration of outer wind turbine is bigger, and the control system of air-conditioning is outer according to the calculating of the second fitting formula
The acceleration of wind turbine ramp-up stage；
S400, according to third fitting formula, raising frequency speed of the compressor in the raising frequency stage is calculated, such as third fitting formula root
It is determined according to the correspondence between indoor environment temperature and the raising frequency speed of compressor, and indoor environment temperature and compressor
Inversely, i.e., indoor environment temperature is lower for raising frequency speed, and the raising frequency speed of compressor is faster, the control system of air-conditioning according to
Third fitting formula calculates the raising frequency speed in compressor raising frequency stage；
S500, 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 controls electric expansion valve
Valve is closed to reference opening amount according to valve speed is closed；
S600, while electric expansion valve closes valve to target aperture, before or after, control outer wind turbine according to acceleration
Raising speed is to rotating speed of target, it is preferable that and rotating speed of target is the maximum (top) speed of outer wind turbine, while electric expansion valve starts to close valve,
The control system of air-conditioning controls outer wind turbine according to acceleration raising speed to maximum (top) speed；
S700, when expansion valve and/or outer wind turbine reach setting condition, control compressor risen according to raising frequency speed
Frequently, it is preferable that reach reference opening amount in the aperture of expansion valve, and when the rotating speed of outer wind turbine reaches maximum (top) speed, the control of air-conditioning
System controls compressor according to the continuous raising frequency of raising frequency speed or continuous raising frequency stage by stage；
S800, 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；
S900, 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.
By predefining the first fitting formula, the second fitting formula and third fitting formula, then according to the first fitting
Formula, the second fitting formula and third fitting formula calculate separately electric expansion valve close valve speed, outer wind turbine acceleration and
Raising frequency speed of the compressor in the raising frequency stage, and then control electric expansion valve and close valve to target aperture, exogenous wind according to valve speed is closed
Machine closes valve to target aperture and outer wind turbine raising speed to rotating speed of target according to acceleration raising speed to rotating speed of target, and in electric expansion valve
While control compressor carry out raising frequency according to raising frequency speed, the control method of air-conditioning can improve under heating mode of the invention
The universality of air-conditioning improves the usage experience of user.In other words, the control method that the present invention solves existing air-conditioning exists
Universality is poor, problem that user experience is bad, improve the comfort of air-conditioning, improve user experience.
Referring to Fig. 2, Fig. 3 and Fig. 4, the principle that the present invention is further explained.Wherein, Fig. 2 is the heating mould of the present invention
Under formula in the control method of air-conditioning expansion valve pass valve speed curve diagram, Fig. 3 be the present invention heating mode under air-conditioning control
The acceleration plots of method China and foreign countries wind turbine；Fig. 4 be the present invention heating mode under air-conditioning control method in compressor liter
Frequency speed curve diagram.
As shown in Fig. 2, in a kind of possible embodiment, indoor environment temperature and expansion valve in the first fitting formula
Close valve speed inversely, it is preferable that target aperture is the reference opening amount of expansion valve.For example, the first of valve speed is closed
Fitting formula can be：vp=k " Tin+ b ", wherein vp(P/s, wherein P are opening for expansion valve to the pass valve speed of expression expansion valve
Spend unit " step "), TinIndicate that indoor environment temperature (DEG C), k " are proportionality coefficient, b " is constant.The ratio system of first fitting formula
Number k " and constant b " can be determined as follows：Assuming that indoor environment temperature TinValue range be 10-30 DEG C, as a result,
Enable TinAt=30 DEG C, valve speed v is closedpmin=30P/s, TinAt=16 DEG C, valve speed v is closedpmax=80P/s, is acquired, and k "=-
3.5, b "=115, therefore vp=-3.5Tin+115.After calculating the first fitting formula, the first fitting formula is preset in sky
In the control system of tune, so, after user selects heating mode every time, control system just can be according to the interior got
Environment temperature determines the pass valve speed of expansion valve, and closes valve work according to the pass valve speed control expansion valve.
As shown in figure 3, in a kind of possible embodiment, indoor environment temperature and outer wind turbine in the second fitting formula
Acceleration is inversely, it is preferable that rotating speed of target is the maximum (top) speed of outer wind turbine.For example, the second fitting of acceleration
Formula can be：aw=k ' Tin+ b ', wherein awIndicate the acceleration (r/s of outer wind turbine2), TinIndicate indoor environment temperature
(DEG C), k ' are proportionality coefficient, and b ' is constant.The proportionality coefficient k ' and constant b ' of second fitting formula can as follows really
It is fixed：Assuming that indoor environment temperature TinValue range be 10-30 DEG C, enable T as a result,inAt=30 DEG C, acceleration awmin=10r/
s2, TinAt=10 DEG C, acceleration awmax=30r/s2, acquire, k '=- 1, b '=40, therefore aw=-Tin+40.Calculating
After two fitting formulas, the second fitting formula is preset in the control system of air-conditioning, so, when user selects to heat every time
After pattern, control system just can determine the acceleration of outer wind turbine according to the indoor environment temperature got, and according to the acceleration
The outer wind turbine raising speed work of control.
As shown in figure 4, in a kind of possible embodiment, there are one compressors the raising frequency stage, and the raising frequency rank
The raising frequency speed of indoor environment temperature and compressor is inversely in the third fitting formula of section, it is preferable that raising frequency speed is
Arbitrary value in 0.5Hz-30Hz.For example, the third fitting formula of raising frequency speed can be：vy=kTin+ b, wherein vy
Indicate the raising frequency speed (Hz/s) of compressor, TinIndicate indoor environment temperature (DEG C), k is proportionality coefficient, and b is constant.Third is quasi-
The proportionality coefficient k and constant b for closing formula can be determined as follows：Assuming that indoor environment temperature TinValue range be
10-30 DEG C, T is enabled as a result,inAt=30 DEG C, raising frequency speed vymin=0.5Hz/s, TinAt=10 DEG C, raising frequency speed vymax=
30Hz/s is acquired, k=-1.475, b=44.75, therefore vy=-1.475Tin+44.75.After calculating third fitting formula,
Third fitting formula is preset in the control system of air-conditioning, so, after user selects heating mode every time, control system
System just can determine the raising frequency speed of compressor according to the indoor environment temperature got, and according to the raising frequency speed control compressor
Raising frequency works.
It further, can also be by indoor environment temperature TinValue range be divided into one or more temperature ranges,
Indoor environment temperature TinWhen falling into one of temperature range, corresponding raising frequency speed is calculated using third fitting formula.For example,
By indoor environment temperature TinValue range be divided into three sections (- ∞, 10), [10,30] and (30 ,+∞), getting
Indoor environment temperature TinWhen in [10,30] this section, using third fitting formula vy=kTin+ b calculates raising frequency speed,
As indoor environment temperature TinWhen in (- ∞, 10) or the section (30 ,+∞), then indoor environment temperature is equal to 10 and 30 respectively
Raising frequency speed of the raising frequency speed as compressor at this temperature when (i.e. the minimum value and maximum value of temperature range [10,30]).
Thus, the raising frequency speed of compressor can be prevented excessive or the too small damage caused by compressor with simplify control program.
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, heating 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
Heating effect is risen, the job stability and service life of compressor are improved, outer wind turbine is controlled and turns according to acceleration raising speed to target
After the step of speed, control method further includes：
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(℃) | ≤10 | 10-16 | ≥16 |
| rw(r/min) | 1200 | 800 | 400 |
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, the second fitting formula and third fitting formula are closed, then calculating expansion valve according to the first fitting formula is closing the valve stage
Valve speed is closed, outer wind turbine is calculated in the acceleration of ramp-up stage according to the second fitting formula, is calculated and is pressed according to third fitting formula
Raising frequency speed of the contracting machine in the raising frequency stage, and then control expansion valve and close valve to reference opening amount according to closing valve speed, outer wind turbine according to
Acceleration raising speed is controlled to maximum (top) speed when electric expansion valve closes valve to reference opening amount and outer wind turbine raising speed to maximum (top) speed
Compressor carries out raising frequency according to raising frequency speed, and the control method of air-conditioning can improve the pervasive of air-conditioning under heating mode of the invention
Property, improve the usage experience of user.
Specifically, indoor environment temperature respectively with expansion valve close valve speed, outer wind turbine acceleration and compressor
Raising frequency speed inversely.When environment temperature is relatively high indoors, illustrate what user's control air-conditioning was quickly heated
Hope is not strong, at this time according to the first fitting formula, the second fitting formula and the calculated expansion valve of third fitting formula
The raising frequency for closing valve speed, the acceleration of outer wind turbine and compressor is relatively lower speed, and expansion valve closes valve extremely according to the pass valve speed
Reference opening amount and when outer wind turbine is according to acceleration raising speed to maximum (top) speed, compressor carries out raising frequency according to the raising frequency speed, can
While ensureing the heating effect of air-conditioning, the operation stability of expansion valve, outer wind turbine and compressor is improved, reduces to run and make an uproar
Sound；When environment temperature is relatively low indoors, illustrating user, there is an urgent need to air-conditionings quickly to be heated at this time, at this time according to first
Fitting formula, the second fitting formula and the calculated expansion valve of third fitting formula close valve speed, outer wind turbine acceleration and
The raising frequency speed of compressor is relatively high, and expansion valve is according to the fast quick-closing valve of pass valve speed to reference opening amount and outer wind turbine according to adding
When the quick raising speed of speed is to maximum (top) speed, compressor is according to the quick raising frequency of raising frequency speed, so as to realize the quick of air-conditioning
Heating, highly shortened the time of heating, and good usage experience is brought for user.
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 heating effect after compressor start.By being controlled before compressor start
The outer wind turbine raising speed of system is to rotating speed of target, that is, it is that compressor and outdoor unit radiate to drive air flowing in advance with high rotating speed, is made
Just possess good radiating condition when compressor start, compressor radiates caused by avoiding outer wind turbine from starting together with compressor
Ineffective situation occurs, and further increases the heating effect after compressor start.It is determined and is compressed by outdoor environment temperature
The stable working frequency of machine, by electric expansion valve close valve to reference opening amount after according to the target exhaust temperature of compressor determine electricity
The aperture of sub- expansion valve and by after outer wind turbine raising speed to maximum (top) speed according to outdoor environment temperature and compressor operating frequency
The rotating speed of the outer wind turbine of adjustment, control method of the invention can also provide the fortune to match for compressor in compressor operating
Row environment further increases the working efficiency and job stability of compressor, improves 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 quickly being heated, 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 first fitting formula, the form of the second fitting formula and third fitting formula and air-conditioning can be based on not
Same application scenarios are adjusted, if third fitting formula can also be vy=k/Tin+ b etc..For another example, the number of temperature range and
Endpoint value is not unalterable, and those skilled in the art can be adjusted based on practical application scene, such as by the area of [10,30]
Between be further subdivided into multiple sections, each section corresponds to different fitting formulas etc..For another example, target aperture can also be electronics
Opening value near other apertures or reference opening amount of expansion valve, accordingly when target aperture is less than reference opening amount, compressor
Raising frequency can be started after electric expansion valve reaches target aperture, when target opening value is more than reference opening amount, compressor can
To start raising frequency before electric expansion valve reaches target aperture.For another example, rotating speed of target can also be other rotating speeds of outer wind turbine
Or the opening value near maximum (top) speed, accordingly when rotating speed of target is less than maximum (top) speed, compressor can reach in outer wind turbine
Start raising frequency after rotating speed of target, when rotating speed of target value is more than maximum (top) speed, compressor can reach target in outer wind turbine and turn
Start raising frequency before speed.For another example, electric expansion valve can also be according to outdoor environment temperature and/or compressor after reaching reference opening amount
Frequency and the aperture of electric expansion valve between correspondence be adjusted, the rotating speed of outer wind turbine can also be according to outdoor environment
Correspondence between temperature and the frequency and the rotating speed of outer wind turbine of compressor is adjusted (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 heating 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 that a third is fitted subformula, and third is fitted 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 third fitting subformula is respectively vy1=k1Tin+b1、vy2=k2Tin+b2、vy3=
k3Tin+b3.After user selects heating mode, control system is calculated according to each third fitting subformula respectively accordingly to be compressed
Then the raising frequency speed of each raising frequency sub-stage of machine controls compressor and is risen successively according to the raising frequency speed of each raising frequency sub-stage
Frequently.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
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 quickly heats
While, ensure that compressor oil return is normal, is gradually reduced process noise, prolongs the service life.
With reference to Fig. 1 to Fig. 4, 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 booting heat → detect indoor environment temperature be 10 DEG C → expansion valve is calculated according to first fitting formula
Close valve speed vp, the acceleration a of outer wind turbine is calculated according to the second fitting formulaw, the liter of compressor is calculated according to third fitting formula
Frequency speed vy, while stable working frequency f is determined according to table 1w→ electric expansion valve is according to pass valve speed vpQuick-closing valve is same soon
When, outer wind turbine is according to acceleration awQuick raising speed → electric expansion valve closes valve to reference opening amount and outer wind turbine raising speed to maximum (top) speed
When, compressor is according to raising frequency speed vyCarry out quick raising frequency → compressor reaches stable working frequency f after a period of timewAfter tie up
It holds in the frequency run, the aperture B of electric expansion valve is adjusted according to the target exhaust temperature of compressor, the rotating speed of outer wind turbine
rwIt is adjusted according to table 3.
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. the control method of air-conditioning under a kind of heating mode, the air-conditioning includes that compressor, expansion valve and outer wind turbine, feature exist
In the control method includes：
Obtain indoor environment temperature；
According to the first fitting formula, the pass valve speed of the expansion valve is calculated；
According to the second fitting formula, the acceleration of the outer wind turbine is calculated；
According to third 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
Outer wind turbine is according to the acceleration raising speed to rotating speed of target；
When the expansion valve and/or the outer wind turbine reach setting condition, the compressor is controlled according to the raising frequency speed
Carry out raising frequency；
Wherein, first fitting formula is according to corresponding between the indoor environment temperature and the pass valve speed of the expansion valve
Relationship determines that second fitting formula is according to the corresponding pass between the indoor environment temperature and the acceleration of the outer wind turbine
System determines that the third fitting formula is according to the corresponding pass between the indoor environment temperature and the raising frequency speed of the compressor
System determines, and the raising frequency speed of the indoor environment temperature and the compressor is inversely.
2. the control method of air-conditioning under heating mode according to claim 1, which is characterized in that the control method is also wrapped
It includes：
Judge whether the frequency of the compressor reaches stable working frequency；
When the frequency of the compressor reaches the stable working frequency, the compressor is made to 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 under heating mode according to claim 1, which is characterized in that " obtain indoor environment temperature
After the step of degree ", the control method further includes：
Judge whether the indoor environment temperature is in preset temperature range；
When the indoor environment temperature is in the temperature range, according to the third fitting formula, the compressor is calculated
In the raising frequency speed in raising frequency stage.
4. the control method of air-conditioning under heating mode according to claim 3, which is characterized in that the control method is also wrapped
It includes：
When the indoor environment temperature is less than the minimum value of the temperature range, according to the third fitting formula, according to institute
State temperature range minimum value calculate the compressor the raising frequency stage raising frequency speed；Or
When the indoor environment temperature is more than the maximum value of the temperature range, according to the third fitting formula, according to institute
State compressor described in the maximum value calculation of temperature range the raising frequency stage raising frequency speed.
5. the control method of air-conditioning under heating mode according to claim 1, which is characterized in that the target aperture is institute
State the reference opening amount of expansion valve, the rotating speed of target is the maximum (top) speed of the outer wind turbine, " in the expansion valve and/or described
When outer wind turbine reaches setting condition, control the compressor according to the raising frequency speed carry out raising frequency " the step of further comprise：
Reach described maximum turn when the aperture of the expansion valve reaches the reference opening amount, and/or in the outer wind turbine
When fast, control the compressor and carry out raising frequency according to the raising frequency speed.
6. the control method of air-conditioning under heating mode according to claim 1, which is characterized in that " controlling the expansion
Valve closes valve to target aperture according to the pass valve speed " 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 under heating mode according to claim 1, which is characterized in that " controlling the exogenous wind
Machine is according to the acceleration raising speed to rotating speed of target " the step of after, 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 under heating mode according to any one of claim 1 to 7, which is characterized in that described
The raising frequency stage includes multiple raising frequency sub-stages, and the third fitting formula includes accordingly that multiple thirds are fitted subformula, " according to
Third fitting formula, calculate the compressor the raising frequency stage raising frequency speed " further comprise：
It is fitted subformula according to each third, calculates separately the raising frequency speed of each raising frequency sub-stage of compressor.
9. the control method of air-conditioning under heating mode according to claim 8, which is characterized in that " control the compressor
According to the raising frequency speed carry out raising frequency " the step of further comprise：
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 under heating mode according to claim 1, which is characterized in that the indoor environment temperature
The pass valve speed of degree and the expansion valve is inversely；And/or the indoor environment temperature adds with the outer wind turbine
Speed is inversely；And/or the raising frequency speed is the arbitrary value in 0.5Hz-30Hz.
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