CN107218707A - Air conditioner and partial load control method and device thereof - Google Patents
Air conditioner and partial load control method and device thereof Download PDFInfo
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- CN107218707A CN107218707A CN201710580470.3A CN201710580470A CN107218707A CN 107218707 A CN107218707 A CN 107218707A CN 201710580470 A CN201710580470 A CN 201710580470A CN 107218707 A CN107218707 A CN 107218707A
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- 238000000034 method Methods 0.000 title claims abstract description 46
- 238000001704 evaporation Methods 0.000 claims description 160
- 230000008859 change Effects 0.000 claims description 120
- 238000004378 air conditioning Methods 0.000 claims description 56
- 208000011580 syndromic disease Diseases 0.000 claims description 28
- 230000033228 biological regulation Effects 0.000 claims description 17
- 230000009467 reduction Effects 0.000 claims description 8
- 230000008020 evaporation Effects 0.000 claims description 4
- 238000004590 computer program Methods 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 28
- 238000010977 unit operation Methods 0.000 description 12
- 238000010025 steaming Methods 0.000 description 7
- 230000007423 decrease Effects 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 5
- 206010008190 Cerebrovascular accident Diseases 0.000 description 4
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- 230000000977 initiatory effect Effects 0.000 description 4
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- 238000006243 chemical reaction Methods 0.000 description 3
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- 238000004134 energy conservation Methods 0.000 description 1
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- 239000003507 refrigerant Substances 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
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Abstract
The invention discloses an air conditioner and a method and a device for controlling partial load of the air conditioner. The air conditioner partial load control method comprises the following steps: receiving a target air supply temperature input by a user; acquiring the current air outlet temperature in real time; and adjusting the current unit load according to the target air supply temperature and the current air outlet temperature. The invention can stabilize the air outlet temperature by adopting load deviation adjustment, so that the air outlet temperature is in a range acceptable by users, and the unit can run more stably and softly under partial load.
Description
Technical field
The present invention relates to air conditioner load control field, more particularly to a kind of air-conditioning and its air-conditioning part duty control method and
Device.
Background technology
The commercial Water cooling cold air blower group market of current High cooling power frequency conversion largely occurs, according to conventional operating statistic number
According to display, the frequency converter sets overwhelming majority time is all to run at part load, is even more just for more than 100kw unit
In this way, this kind of unit often directly serves in bed rearrangement building, the workload demand of user just always rests on portion under such circumstances
Divide under load.
Under current frequency converter sets, sub-load there is the problem of evaporating temperature is unstable, air quantity is unstable in operation, so
Even if in the case of efficiency very it is high very energy-conservation but the change of leaving air temp can be influenceed, have a strong impact on the usage experience of user, influence
The brand of company.
The content of the invention
In view of above technical problem, the invention provides a kind of air-conditioning and its air-conditioning part duty control method and device,
Adjusted using load deviation, unit operation is more stablized at part load.
According to an aspect of the present invention there is provided a kind of air-conditioning part duty control method, including：
Receive the target wind pushing temperature of user's input；
Current leaving air temp is obtained in real time；
Current unit load is adjusted according to target wind pushing temperature and current leaving air temp.
In one embodiment of the invention, it is described negative to current unit according to target wind pushing temperature and current leaving air temp
Lotus be adjusted including：
Determine that wind-warm syndrome is poor according to target wind pushing temperature and current leaving air temp；
Leaving air temp rate of change is determined according to current leaving air temp and the leaving air temp before first scheduled time；
Current unit load is adjusted according to the air-out temperature difference and leaving air temp rate of change.
In one embodiment of the invention, it is described according to the air-out temperature difference and leaving air temp rate of change to current unit load
Be adjusted including：
Judge whether wind-warm syndrome difference and leaving air temp rate of change sum are more than or equal to first predetermined value；
If the air-out temperature difference and leaving air temp rate of change sum are more than or equal to first predetermined value, increase current unit load.
In one embodiment of the invention, it is described according to the air-out temperature difference and leaving air temp rate of change to current unit load
Being adjusted also includes：
If the air-out temperature difference and leaving air temp rate of change sum are less than first predetermined value, wind-warm syndrome difference and leaving air temp are judged
Whether rate of change sum is more than or equal to second predetermined value, and wherein second predetermined value is less than first predetermined value；
If the air-out temperature difference and leaving air temp rate of change sum are more than or equal to second predetermined value, current unit load is kept not
Become；
If the air-out temperature difference and leaving air temp rate of change sum are less than second predetermined value, current unit load is reduced.
In one embodiment of the invention, the current unit load of increase includes：According to the air-out temperature difference and going out wind-warm syndrome
Degree rate of change determines load variations amount；Current unit load is increased into the load variations amount.
In one embodiment of the invention, the current unit load of reduction includes：According to the air-out temperature difference and going out wind-warm syndrome
Degree rate of change determines load variations amount；Current unit load is reduced into the load variations amount.
In one embodiment of the invention, methods described also includes：
Receive the target evaporating temperature and setting suction superheat of user's input；
Current evaporating temperature is determined according to current leaving air temp and setting suction superheat；
Current blower fan frequency is adjusted according to target evaporating temperature and current evaporating temperature.
In one embodiment of the invention, it is described according to target evaporating temperature and current evaporating temperature to current blower fan frequency
Rate be adjusted including：
Evaporating temperature rate of change is determined according to current evaporating temperature and the evaporating temperature before second scheduled time；
Current blower fan frequency is adjusted according to target evaporating temperature, evaporating temperature rate of change and current evaporating temperature.
In one embodiment of the invention, it is described according to target evaporating temperature, evaporating temperature rate of change and to work as front evaporator
Temperature current blower fan frequency is adjusted including：
According to target evaporating temperature, evaporating temperature rate of change and current evaporating temperature temperature judgment value；
Judge whether temperature judgment value is less than or equal to third predetermined value；
If temperature judgment value is less than or equal to third predetermined value, increase current blower fan frequency.
In one embodiment of the invention, it is described according to target evaporating temperature, evaporating temperature rate of change and to work as front evaporator
Temperature is adjusted to current blower fan frequency also to be included：
If temperature judgment value is more than third predetermined value, judge whether temperature judgment value is less than or equal to the 4th predetermined value, its
In the 4th predetermined value be more than third predetermined value；
If temperature judgment value is less than or equal to the 4th predetermined value, keep current blower fan frequency constant；
If temperature judgment value is more than the 4th predetermined value, current blower fan frequency is reduced.
In one embodiment of the invention, the current blower fan frequency of increase includes：According to current evaporating temperature and steaming
Hair rate of temperature change determines blower fan frequency variation；Current blower fan frequency is increased into the blower fan frequency variation.
In one embodiment of the invention, the current blower fan frequency of reduction includes：According to current evaporating temperature and steaming
Hair rate of temperature change determines blower fan frequency variation；Current blower fan frequency is reduced into the blower fan frequency variation.
According to another aspect of the present invention there is provided a kind of air-conditioning part load control unit, including：
Wind pushing temperature receiving module, the target wind pushing temperature for receiving user's input；
Leaving air temp acquisition module, for obtaining current leaving air temp in real time；
Load adjustment module, for being adjusted according to target wind pushing temperature and current leaving air temp to current unit load
It is whole.
In one embodiment of the invention, load adjustment module includes：
Air-out temperature difference determining unit, for determining that wind-warm syndrome is poor according to target wind pushing temperature and current leaving air temp；
Leaving air temp rate of change determining unit, for going out wind-warm syndrome according to current leaving air temp and before first scheduled time
Degree determines leaving air temp rate of change；
Load adjustment unit, for being adjusted according to the air-out temperature difference and leaving air temp rate of change to current unit load.
In one embodiment of the invention, load adjustment unit includes：
First judging submodule, for judging it is pre- whether wind-warm syndrome difference and leaving air temp rate of change sum are more than or equal to first
Definite value；
First load adjustment submodule, for the first judging submodule determine wind-warm syndrome difference and leaving air temp rate of change it
In the case of more than or equal to first predetermined value, increase current unit load.
In one embodiment of the invention, load adjustment unit also includes：
Second judging submodule, for being determined in the first judging submodule, wind-warm syndrome is poor and leaving air temp rate of change sum is small
In the case of first predetermined value, judge whether wind-warm syndrome difference and leaving air temp rate of change sum are more than or equal to second predetermined value,
Wherein second predetermined value is less than first predetermined value；
Second load adjustment submodule, for the second judging submodule determine wind-warm syndrome difference and leaving air temp rate of change it
In the case of more than or equal to second predetermined value, keep current unit load constant；
3rd load adjustment submodule, for the second judging submodule determine wind-warm syndrome difference and leaving air temp rate of change it
In the case of less than second predetermined value, current unit load is reduced.
In one embodiment of the invention, the first load adjustment submodule is used to be become according to the air-out temperature difference and leaving air temp
Rate determines load variations amount；Current unit load is increased into the load variations amount.
In one embodiment of the invention, the 3rd load adjustment submodule is used to be become according to the air-out temperature difference and leaving air temp
Rate determines load variations amount；Current unit load is reduced into the load variations amount.
In one embodiment of the invention, air-conditioning part load control unit also includes：
Degree of superheat receiving module, target evaporating temperature and setting suction superheat for receiving user's input；
Evaporating temperature acquisition module, for determining to work as front evaporator temperature according to current leaving air temp and setting suction superheat
Degree；
Blower fan frequency regulation block, for being carried out according to target evaporating temperature and current evaporating temperature to current blower fan frequency
Adjustment.
In one embodiment of the invention, blower fan frequency regulation block includes：
Evaporating temperature rate of change determining unit, for the evaporation temperature according to current evaporating temperature and before second scheduled time
Degree determines evaporating temperature rate of change；
Blower fan frequency adjustment unit, for according to target evaporating temperature, evaporating temperature rate of change and current evaporating temperature pair
Current blower fan frequency is adjusted.
In one embodiment of the invention, blower fan frequency adjustment unit includes：
Temperature judgment value determination sub-module, for according to target evaporating temperature, evaporating temperature rate of change and when front evaporator temperature
Spend temperature judgment value；
3rd judging submodule, for judging whether temperature judgment value is less than or equal to third predetermined value；
First blower fan frequency adjusts submodule, for judging that temperature judgment value is less than or equal to the 3rd in the 3rd judging submodule
In the case of predetermined value, increase current blower fan frequency.
In one embodiment of the invention, the blower fan frequency adjustment unit also includes：
4th judging submodule, for judging that temperature judgment value is more than the situation of third predetermined value in the 3rd judging submodule
Under, judge whether temperature judgment value is less than or equal to the 4th predetermined value, wherein the 4th predetermined value is more than third predetermined value；
Second blower fan frequency adjusts submodule, for judging that temperature judgment value is less than or equal to the 4th in the 4th judging submodule
In the case of predetermined value, keep current blower fan frequency constant；
3rd blower fan frequency adjusts submodule, for judging that temperature judgment value is more than the 4th and made a reservation in the 4th judging submodule
In the case of value, current blower fan frequency is reduced.
In one embodiment of the invention, the first blower fan frequency adjustment submodule is used for according to current evaporating temperature and steaming
Hair rate of temperature change determines blower fan frequency variation；Current blower fan frequency is increased into the blower fan frequency variation.
In one embodiment of the invention, the 3rd blower fan frequency adjustment submodule is used for according to current evaporating temperature and steaming
Hair rate of temperature change determines blower fan frequency variation；Current blower fan frequency is reduced into the blower fan frequency variation.
According to another aspect of the present invention there is provided a kind of air-conditioning part load control unit, including memory, processor and
The computer program that can be run on a memory and on a processor is stored, is realized during the computing device described program above-mentioned
Method and step described in any embodiment.
According to another aspect of the present invention there is provided a kind of air-conditioning, including the air-conditioning part as described in above-mentioned any embodiment
Load control unit.
The present invention can be such that leaving air temp is connect in user by using load deviation regulation with stabilized leaving air temp
By in the range of, so that unit operation is more stablized at part load, it is soft.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the accompanying drawing used required in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can be with
Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is the schematic diagram of air-conditioning part duty control method first embodiment of the present invention.
Fig. 2 is the schematic diagram of air-conditioning part duty control method second embodiment of the present invention.
Fig. 3 be one embodiment of the invention in current unit load is entered according to target wind pushing temperature and current leaving air temp
The schematic diagram of row adjustment.
Fig. 4 is current unit load to be carried out according to the air-out temperature difference and leaving air temp rate of change in one embodiment of the invention
The schematic diagram of adjustment.
Fig. 5 be one embodiment of the invention in current blower fan frequency is entered according to target evaporating temperature and current evaporating temperature
The schematic diagram of row adjustment.
Fig. 6 be one embodiment of the invention according to target evaporating temperature, evaporating temperature rate of change and current evaporating temperature
The schematic diagram being adjusted to current blower fan frequency.
Fig. 7 is the control sequential figure of air conditioner load control method 3rd embodiment of the present invention.
Fig. 8 is that air-conditioning part of the present invention duty control method is contrasted with traditional control method to the regulating effect of wind pushing temperature
Schematic diagram.
Fig. 9 is the schematic diagram of air-conditioning part load control unit first embodiment of the present invention.
Figure 10 is the schematic diagram of air-conditioning part load control unit second embodiment of the present invention.
Figure 11 is the schematic diagram of load adjustment module in one embodiment of the invention.
Figure 12 is the schematic diagram of load adjustment unit in one embodiment of the invention.
Figure 13 is the schematic diagram of one embodiment of the invention apoplexy unit frequency adjusting module.
Figure 14 is the schematic diagram of one embodiment of the invention apoplexy unit frequency adjustment unit.
Figure 15 is the schematic diagram of air-conditioning part load control unit 3rd embodiment of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.Below
Description only actually at least one exemplary embodiment is illustrative, is never used as to the present invention and its application or makes
Any limitation.Based on the embodiment in the present invention, those of ordinary skill in the art are not making creative work premise
Lower obtained every other embodiment, belongs to the scope of protection of the invention.
Unless specifically stated otherwise, the part and positioned opposite, the digital table of step otherwise illustrated in these embodiments
Do not limited the scope of the invention up to formula and numerical value.
Simultaneously, it should be appreciated that for the ease of description, the size of the various pieces shown in accompanying drawing is not according to reality
Proportionate relationship draw.
It may be not discussed in detail for technology, method and apparatus known to person of ordinary skill in the relevant, but suitable
In the case of, the technology, method and apparatus should be considered as authorizing a part for specification.
In shown here and discussion all examples, any occurrence should be construed as merely exemplary, without
It is as limitation.Therefore, the other examples of exemplary embodiment can have different values.
It should be noted that：Similar label and letter represents similar terms in following accompanying drawing, therefore, once a certain Xiang Yi
It is defined, then it need not be further discussed in subsequent accompanying drawing in individual accompanying drawing.
Fig. 1 is the schematic diagram of air-conditioning part duty control method first embodiment of the present invention.It is preferred that, the present embodiment can be by
Air-conditioning part of the present invention load control unit is performed.This method comprises the following steps：
Step 1, the target wind pushing temperature Tm of user's input is received.
Step 2, current leaving air temp Ts is obtained in real time.
Step 3, current unit load is adjusted according to target wind pushing temperature Tm and current leaving air temp Ts, wherein institute
State current unit load and refer to the output of current compressor load, i.e. current compression unit frequency F.
The air-conditioning part duty control method provided based on the above embodiment of the present invention, can by using load deviation regulation
With stabilized leaving air temp, leaving air temp is set to be in the range of user's acceptable, so that unit operation is in sub-load
Under more stablize, it is soft.
Fig. 2 is the schematic diagram of air-conditioning part duty control method second embodiment of the present invention.It is preferred that, the present embodiment can be by
Air-conditioning part of the present invention load control unit is performed.As shown in Fig. 2 this method comprises the following steps：
Step 1, the target wind pushing temperature Tm of user's input is received.
Step 2, current leaving air temp Ts is obtained in real time.
Step 3, current unit load is adjusted according to target wind pushing temperature Tm and current leaving air temp Ts.
Step 4, the target evaporating temperature t2 and setting suction superheat Tx of user's input are received.
Step 5, current evaporating temperature t1 is determined according to current leaving air temp Ts and setting suction superheat Tx.
In one embodiment of the invention, step 5 can include：Determined to work as front evaporator temperature according to formula t1=Ts-Tx
Spend t1.
Step 6, current blower fan frequency is adjusted according to target evaporating temperature t2 and current evaporating temperature t1.
Based on the above embodiment of the present invention provide air-conditioning part duty control method, by using load deviation regulation and
Air quantity difference is adjusted, and evaporating temperature is stable in rational scope, and stabilized leaving air temp makes leaving air temp can in user
In the range of receiving, so that unit operation is more stable, soft at part load.The above embodiment of the present invention is solved
Existing frequency converter sets run the technical problem for having that evaporating temperature is unstable, air quantity is unstable at part load, improve machine
The usage experience of group；Because of the risk of the unstable initiation of temperature when reducing operation at part load.
Fig. 3 be one embodiment of the invention in current unit load is entered according to target wind pushing temperature and current leaving air temp
The schematic diagram of row adjustment.As shown in figure 3, the step 3 in Fig. 1 or Fig. 2 embodiments can include：
Step 31, wind temperature difference T1=Ts-Tm is determined according to target wind pushing temperature Tm and current leaving air temp Ts.
Step 32, according to the leaving air temp Ts before current leaving air temp Ts and the first scheduled time Δ t1(t-Δt1)It is determined that
Leaving air temp rate of change Δ T2=Tst-Ts(t-Δt1)。
Step 33, current unit load F is adjusted according to air-out temperature difference T1 and leaving air temp rate of change Δ T2.
The above embodiment of the present invention is adjusted by using load deviation, can specifically be become according to the air-out temperature difference and leaving air temp
Rate is adjusted to current unit load, so as to stabilized leaving air temp, thus avoid and leaving air temp occurs and be not inconsistent
The phenomenon of user's request is closed, the stability of unit operation at part load is improved.
Fig. 4 is current unit load to be carried out according to the air-out temperature difference and leaving air temp rate of change in one embodiment of the invention
The schematic diagram of adjustment.As shown in figure 4, the step 33 in Fig. 3 embodiments can include：
Step 331, wind temperature difference T1 and leaving air temp rate of change Δ T2 sum Δ T1+ Δs are judged with the first predetermined period
Whether T2 is more than or equal to first predetermined value.If Δ T1+ Δs T2 is more than or equal to first predetermined value, step 332 is performed；Otherwise, if
Δ T1+ Δs T2 is less than first predetermined value, then performs step 333.
Step 332, current unit load F is increased.
In one embodiment of the invention, step 332 can include：
Step 3321, load variations amount Δ F is determined according to air-out temperature difference T1 and leaving air temp rate of change Δ T2.
Step 3322, current unit load F is increased into the load variations amount Δ F.
Step 333, judge whether Δ T1+ Δs T2 is more than or equal to second predetermined value with the first predetermined period, wherein second is pre-
Definite value is less than first predetermined value.If Δ T1+ Δs T2 is more than or equal to second predetermined value, step 334 is performed；Otherwise, if Δ T1+ Δs
T2 is less than second predetermined value, then performs step 335.
Step 334, keep current unit load F constant；
Step 335, current unit load F is reduced.
In one embodiment of the invention, the step 335 can include：
Step 3351, load variations amount Δ F is determined according to air-out temperature difference T1 and leaving air temp rate of change Δ T2.
Step 3352, current unit load F is reduced into the load variations amount Δ F.
The above embodiment of the present invention can determine load incrementss according to the air-out temperature difference and rate of temperature change, every time increase or
The certain load incrementss of reduction, so as to more be accurately determined the relation of wind pushing temperature and reality output load.
In one embodiment of the invention, step 3321 or step 3351 can include：According to formula Δ F=| Δ T1*
α+Δ T2* γ | load variations amount Δ F is determined, wherein, α is temperature difference correction factor, and γ is leaving air temp rate of change correction factor.
In one particular embodiment of the present invention, the first predetermined period described in Fig. 4 embodiments is 15s, described second
Predetermined value is -1 DEG C, and the first predetermined value is 2 DEG C.
I.e., in this specific embodiment, if monitor Δ T1+ Δ T2 >=2 DEG C per 15s, unit load F increase Δ F, i.e.,
F=F+ Δs F.
If monitor -1≤Δ T1+ Δ T2≤2 DEG C per 15s, unit load F is constant.
If monitor Δ T1+ Δ T2≤- 1 DEG C per 15s, unit load F reductions Δ F, i.e. F=F- Δs F.
The above embodiment of the present invention can by the way that the air-out temperature difference and rate of temperature change sum are compared with two threshold values,
To determine to increased or decrease unit load, so as to more be accurately determined the relation of wind pushing temperature and reality output load.
Fig. 5 be one embodiment of the invention in current blower fan frequency is entered according to target evaporating temperature and current evaporating temperature
The schematic diagram of row adjustment.As shown in figure 5, the step 6 in Fig. 2 embodiments can include：
Step 61, according to the evaporating temperature t1 before current evaporating temperature t1 and the second scheduled time Δ t2(t-Δt2)It is determined that
Evaporating temperature rate of change Δ t2=t1t-t1(t-Δt2)。
Step 62, according to target evaporating temperature t2, evaporating temperature rate of change Δ t2 and current evaporating temperature t1 to current wind
Unit frequency f is adjusted.
The above embodiment of the present invention proposes a kind of sub-load control method of constant evaporating temperature, so as to solve unit
The problem of evaporating temperature in operation at part load is unstable.The above embodiment of the present invention is adjusted and wind by using load deviation
Bias adjustment is measured, can be stable in rational scope by evaporating temperature, it is possible to stabilized leaving air temp, make at leaving air temp
In the range of user's acceptable, so that unit operation is more stablized at part load, it is soft.
Fig. 6 be one embodiment of the invention according to target evaporating temperature, evaporating temperature rate of change and current evaporating temperature
The schematic diagram being adjusted to current blower fan frequency.As shown in fig. 6, the step 62 in Fig. 5 embodiments can include：
Step 621, with the second predetermined period, according to target evaporating temperature t2, evaporating temperature rate of change Δ t2 and current steaming
Send out temperature t1 temperature judgment value t=t1+ Δs t2-t2.
Step 622, judge whether temperature judgment value t is less than or equal to third predetermined value.If temperature judgment value t is less than or equal to the
Three predetermined values, then perform step 623；Otherwise, if temperature judgment value is more than first predetermined value, step 624 is performed.
Step 623, current blower fan frequency f is increased.Thus the above embodiment of the present invention can temperature judgment value be less than etc.
In the case of third predetermined value, increase current blower fan frequency, to realize the stability control to air quantity
In one embodiment of the invention, step 623 can include：
Step 6231, blower fan frequency variation Δ f is determined according to current evaporating temperature t1 and evaporating temperature rate of change Δ t2.
Step 6232, current blower fan frequency f is increased into the blower fan frequency variation Δ f.
Step 624, judge whether temperature judgment value is less than or equal to the 4th predetermined value, wherein the 4th predetermined value is pre- more than the 3rd
Definite value.If temperature judgment value t is less than or equal to the 4th predetermined value, step 625 is performed；Otherwise, if temperature judgment value is more than the 4th
Predetermined value, then perform step 626.
Step 625, keep current blower fan frequency f constant.
Step 626, current blower fan frequency f is reduced.
In one embodiment of the invention, step 626 can include：
Step 6261, blower fan frequency variation Δ f is determined according to current evaporating temperature t1 and evaporating temperature rate of change Δ t2.
Step 6262, current blower fan frequency f is reduced into the blower fan frequency variation Δ f.
The above embodiment of the present invention can determine that blower fan frequency changes according to current evaporating temperature and evaporating temperature rate of change
Amount, increases or decreases certain blower fan frequency variation every time, defeated so as to more be accurately determined evaporating temperature and reality
Go out load, the relation of air-supply air quantity.
In one embodiment of the invention, step 6231 or step 6261 can include：According to formula Δ f=| t1* β+
Δ t2* δ | blower fan frequency variation Δ f is determined, wherein, β is evaporating temperature correction factor, and δ is evaporating temperature rate of change amendment system
Number.
In one particular embodiment of the present invention, the second predetermined period described in Fig. 6 embodiments is 8s, and the described 3rd is pre-
Definite value is -2 DEG C, and the 4th predetermined value is 2 DEG C.
I.e., in this specific embodiment, if detect t1+ Δs t2≤t2-2 per 8s, blower fan frequency f increases Δ f, i.e. f
=f+ Δs f.
If detect t2-2≤t1+ Δs t2≤t2+2 per 8s, blower fan frequency f is constant；
If detect t1+ Δs t2 >=t2+2 per 8s, blower fan frequency f reductions Δ f, i.e. f=f+ Δs f.
The above embodiment of the present invention provides a kind of commercial High cooling power cold wind unit air-conditioning part of frequency conversion with variable air rate function
Point duty control method, can be by the temperature that determines target evaporating temperature, evaporating temperature rate of change and current evaporating temperature
Judgment value is compared with two threshold values, to determine to increased or decrease blower fan frequency, so as to more accurately realize to wind
The stability contorting of amount and evaporating temperature, and then wind pushing temperature is controlled, further improve unit steady in operation at part load
It is qualitative.
Fig. 7 is the control sequential figure of air conditioner load control method 3rd embodiment of the present invention.As shown in fig. 7, electric on unit
Complete to start shooting after initialization procedure, in starting up runs, throttling arrangement aperture, blower fan frequency are adjusted according to actual condition,
Compressor is adjusted after being run 3 minutes with initial load (initial operating frequency) according to actual condition, is progressively adjusted to 100% load.
Specifically, the air conditioner load control method shown in Fig. 7 can include：
First stage, unit is opened
It is electric on unit, carry out in initialization procedure, throttling arrangement is beaten to maximum opening；Blower fan frequency is carried to highest；Blower fan,
Electric expansion valve (EXV) is closed.
Second stage, unit start
Throttling arrangement shifts to an earlier date compressor, regulation to initial opening；Blower fan shifts to an earlier date compressor, regulation to original frequency；Compression
Machine is adjusted to initial load and opened, and is run 3 minutes.
In the above embodiment of the present invention, it is that, in order to allow refrigerant first to lead to, blower fan is first opened that electric expansion valve is opened in advance
It is in order to allow wind to lead in advance, it is possible thereby to ensure to have been able to normal operation when compressor is opened, to avoid compressor
Break down.
Phase III, unit operation stage (0~100% load stage)
In the phase III, the present invention can be according to described in any of the above-described embodiment (such as Fig. 1-Fig. 6 any embodiments)
Air-conditioning part duty control method is controlled according to actual condition to unit sub-load.
In one embodiment of the invention, as shown in fig. 7, in the phase III, the air conditioner load control method is also not
It can include：Aperture to electric expansion valve EXV is controlled.The aperture variable quantity of electric expansion valve is by suction superheat
Tx is adjusted.
In one particular embodiment of the present invention, initial opening can be set as EXV1, aperture real-time change amount is
EXV2.Adjusted after initial opening end of run according to actual suction superheat, sets target evaporating temperature t2.The regulation per 5s
Once, regulated quantity EXV2 can be determined according to (t2-Tx), and Tx is setting suction superheat.
Thus in the above embodiment of the present invention, assigned in display board as interaction platform to air-conditioning part load control unit
Test pattern start stop command, air-conditioning part load control unit can be according to the sensor parameters received, temperature-sensitive bag parameter, exchange
Contactor adjusts the operation that compressor load signal, electronic expansion valve signal, blower fan frequency signal control unit with this in real time
State even running.
Fig. 8 is that air-conditioning part of the present invention duty control method is contrasted with traditional control method to the regulating effect of wind pushing temperature
Schematic diagram.As shown in figure 8, the regulating effect of the present invention is more stable than traditional approach more, the above embodiment of the present invention it also avoid
Some extreme operating conditions during open state, increase operation stability.
The above embodiment of the present invention provides a kind of brand-new sub-load control program for large-size variable-frequency cold wind unit.This hair
The air-conditioning part duty control method of bright above-described embodiment goes for large-size variable-frequency cold wind unit.The above embodiment of the present invention
The stability contorting to evaporating temperature can be realized, and then can be with stabilized wind pushing temperature, and unit is improved in sub-load fortune
Stability in row.
Fig. 9 is the schematic diagram of air-conditioning part load control unit first embodiment of the present invention.As shown in figure 9, the air-conditioning
Sub-load control device can include wind pushing temperature receiving module 1, leaving air temp acquisition module 2 and load adjustment module 3, its
In：
Wind pushing temperature receiving module 1, the target wind pushing temperature Tm for receiving user's input.
Leaving air temp acquisition module 2, for obtaining current leaving air temp Ts in real time.
Load adjustment module 3, is used for, and current unit load is entered according to target wind pushing temperature Tm and current leaving air temp Ts
Row adjustment, wherein the current unit load refers to the output of current compressor load, i.e. current compression unit frequency F.
The air-conditioning part load control unit provided based on the above embodiment of the present invention, can by using load deviation regulation
With stabilized leaving air temp, leaving air temp is set to be in the range of user's acceptable, so that unit operation is in sub-load
Under more stablize, it is soft.
Figure 10 is the schematic diagram of air-conditioning part load control unit second embodiment of the present invention.With embodiment illustrated in fig. 9 phase
Than in the embodiment shown in fig. 10, air-conditioning part load control unit can also include degree of superheat receiving module 4, evaporation
Temperature acquisition module 5 and blower fan frequency regulation block 6, wherein：
Degree of superheat receiving module 4, target evaporating temperature t2 and setting suction superheat Tx for receiving user's input.
Evaporating temperature acquisition module 5, for determining current steam according to current leaving air temp Ts and setting suction superheat Tx
Send out temperature t1.
In one embodiment of the invention, evaporating temperature acquisition module 5 can be used for being determined according to formula t1=Ts-Tx
Current evaporating temperature t1.
Blower fan frequency regulation block 6, for according to target evaporating temperature t2 and current evaporating temperature t1 to current blower fan frequency
Rate is adjusted.
Based on the above embodiment of the present invention provide air-conditioning part load control unit, by using load deviation regulation and
Air quantity difference is adjusted, and evaporating temperature is stable in rational scope, and stabilized leaving air temp makes leaving air temp can in user
In the range of receiving, so that unit operation is more stable, soft at part load.The above embodiment of the present invention is solved
Existing frequency converter sets run the technical problem for having that evaporating temperature is unstable, air quantity is unstable at part load, improve machine
The usage experience of group；Because of the risk of the unstable initiation of temperature when reducing operation at part load.
Figure 11 is the schematic diagram of load adjustment module in one embodiment of the invention.As shown in figure 11, Fig. 9 or Figure 10 is implemented
Load adjustment module 3 in example can include air-out temperature difference determining unit 31, leaving air temp rate of change determining unit 32 and load
Adjustment unit 33：
Air-out temperature difference determining unit 31, for determining that wind-warm syndrome is poor according to target wind pushing temperature Tm and current leaving air temp Ts
Δ T1=Ts-Tm.
Leaving air temp rate of change determining unit 32, before according to current leaving air temp Ts and the first scheduled time Δ t1
Leaving air temp Ts(t-Δt1)Determine leaving air temp rate of change Δ T2.
Wherein, leaving air temp rate of change Δ T2=Tst-Ts(t-Δt1)。
Load adjustment unit 33, for according to air-out temperature difference T1 and leaving air temp rate of change Δ T2 to current unit load
F is adjusted.
The above embodiment of the present invention is adjusted by using load deviation, can specifically be become according to the air-out temperature difference and leaving air temp
Rate is adjusted to current unit load, so as to stabilized leaving air temp, thus avoid and leaving air temp occurs and be not inconsistent
The phenomenon of user's request is closed, the stability of unit operation at part load is improved.
Figure 12 is the schematic diagram of load adjustment unit in one embodiment of the invention.As shown in figure 12, in Figure 11 embodiments
Load adjustment unit 33 can include the first judging submodule 331, the first load adjustment submodule 332, second judge submodule
Block 333, the second load adjustment submodule 334 and the 3rd load adjustment submodule 335, wherein：
First judging submodule 331, for judging whether wind temperature difference T1 and leaving air temp rate of change Δ T2 sums are big
In equal to first predetermined value；
First load adjustment submodule 332, for determining wind temperature difference T1 in the first judging submodule 331 and going out wind-warm syndrome
Rate of change Δ T2 sums are spent more than or equal in the case of first predetermined value, increase current unit load.
In one embodiment of the invention, the first load adjustment submodule 332 is used for according to air-out temperature difference T1 and gone out
Air temperature rate of change Δ T2 determines load variations amount；Current unit load is increased into the load variations amount.
Second judging submodule 333, for determining wind temperature difference T1 and leaving air temp change in the first judging submodule 331
In the case that rate Δ T2 sums are less than first predetermined value, judge that wind temperature difference T1 and leaving air temp rate of change Δ T2 sums are
No to be more than or equal to second predetermined value, wherein second predetermined value is less than first predetermined value；
Second load adjustment submodule 334, for determining wind temperature difference T1 in the second judging submodule 333 and going out wind-warm syndrome
Rate of change Δ T2 sums are spent more than or equal in the case of second predetermined value, keep current unit load constant；
3rd load adjustment submodule 335, for determining wind temperature difference T1 in the second judging submodule 333 and going out wind-warm syndrome
Rate of change Δ T2 sums are spent less than in the case of second predetermined value, reduce current unit load.
The above embodiment of the present invention can by the way that the air-out temperature difference and rate of temperature change sum are compared with two threshold values,
To determine to increased or decrease unit load, so as to more be accurately determined the relation of wind pushing temperature and reality output load.
In one particular embodiment of the present invention, the first predetermined period described in Figure 12 embodiments is 15s, described second
Predetermined value is -1 DEG C, and the first predetermined value is 2 DEG C.
In one embodiment of the invention, the 3rd load adjustment submodule 335 is used for according to air-out temperature difference T1 and gone out
Air temperature rate of change Δ T2 determines load variations amount；Current unit load is reduced into the load variations amount.
The above embodiment of the present invention can determine load incrementss according to the air-out temperature difference and rate of temperature change, every time increase or
The certain load incrementss of reduction, so as to more be accurately determined the relation of wind pushing temperature and reality output load.
Figure 13 is the schematic diagram of one embodiment of the invention apoplexy unit frequency adjusting module.As shown in figure 13, Fig. 9 or Figure 10
Blower fan frequency regulation block 6 in embodiment can include evaporating temperature rate of change determining unit 61 and blower fan frequency adjustment unit
62, wherein：
Evaporating temperature rate of change determining unit 61, before according to current evaporating temperature t1 and the second scheduled time Δ t2
Evaporating temperature t1(t-Δt2)Determine evaporating temperature rate of change Δ t2.
Wherein, evaporating temperature rate of change Δ t2=t1t-t1(t-Δt2)。
Blower fan frequency adjustment unit 62, for according to target evaporating temperature t2, evaporating temperature rate of change Δ t2 and current steaming
Hair temperature t1 is adjusted to current blower fan frequency f.
The above embodiment of the present invention proposes a kind of sub-load control device of constant evaporating temperature, so as to solve unit
The problem of evaporating temperature in operation at part load is unstable.The above embodiment of the present invention is adjusted and wind by using load deviation
Bias adjustment is measured, can be stable in rational scope by evaporating temperature, it is possible to stabilized leaving air temp, make at leaving air temp
In the range of user's acceptable, so that unit operation is more stablized at part load, it is soft.
Figure 14 is the schematic diagram of one embodiment of the invention apoplexy unit frequency adjustment unit.As shown in figure 14, Figure 13 is implemented
Blower fan frequency adjustment unit 62 in example can include temperature judgment value determination sub-module 621, the 3rd judging submodule 622 and the
One blower fan frequency adjusts submodule 623, wherein：
Temperature judgment value determination sub-module 621, for the second predetermined period, according to target evaporating temperature t2, evaporation temperature
Rate of change Δ t2 and current evaporating temperature t1 temperatures judgment value t is spent, wherein, t=t1+ Δs t2-t2.
3rd judging submodule 622, for judging whether temperature judgment value t is less than or equal to third predetermined value.
First blower fan frequency adjusts submodule 623, for judging that temperature judgment value t is less than in the 3rd judging submodule 622
In the case of third predetermined value, increase current blower fan frequency f.
In one embodiment of the invention, the first blower fan frequency adjustment submodule 623 is used for according to current evaporating temperature
T1 and evaporating temperature rate of change Δ t2 determine blower fan frequency variation Δ f；Current blower fan frequency f is increased into the blower fan frequency to become
Change amount Δ f.
The above embodiment of the present invention can determine that blower fan frequency changes according to current evaporating temperature and evaporating temperature rate of change
Amount, increases certain blower fan frequency variation every time, so as to be more accurately determined evaporating temperature and reality output load,
The relation of air-supply air quantity.
In one embodiment of the invention, as shown in figure 14, the blower fan frequency adjustment unit can also include the 4th
Judging submodule 624, the second blower fan frequency adjustment submodule 625 and the 3rd blower fan frequency adjustment submodule 626, wherein：
4th judging submodule 624, for judging that temperature judgment value t is more than the 3rd and made a reservation in the 3rd judging submodule 622
In the case of value, judge whether temperature judgment value t is less than or equal to the 4th predetermined value, make a reservation for wherein the 4th predetermined value is more than the 3rd
Value.
Second blower fan frequency adjusts submodule 625, for judging that temperature judgment value t is less than in the 4th judging submodule 624
In the case of the 4th predetermined value, keep current blower fan frequency f constant.
3rd blower fan frequency adjusts submodule 626, for judging that temperature judgment value t is more than in the 4th judging submodule 624
In the case of 4th predetermined value, current blower fan frequency f is reduced.
In one particular embodiment of the present invention, the second predetermined period described in Figure 14 embodiments is 8s, the described 3rd
Predetermined value is -2 DEG C, and the 4th predetermined value is 2 DEG C.
The above embodiment of the present invention provides a kind of commercial High cooling power cold wind unit air-conditioning part of frequency conversion with variable air rate function
Point duty control method, can be by the temperature that determines target evaporating temperature, evaporating temperature rate of change and current evaporating temperature
Judgment value is compared with two threshold values, to determine to increased or decrease blower fan frequency, so as to more accurately realize to steaming
The stability contorting of temperature is sent out, and then controls wind pushing temperature, stability of the unit in operation at part load is further improved.
In one embodiment of the invention, the 3rd blower fan frequency adjustment submodule 626 is used for according to current evaporating temperature
T1 and evaporating temperature rate of change Δ t2 determine blower fan frequency variation Δ f；Current blower fan frequency f is reduced into the blower fan frequency to become
Change amount Δ f.
The above embodiment of the present invention can determine that blower fan frequency changes according to current evaporating temperature and evaporating temperature rate of change
Amount, increases or decreases certain blower fan frequency variation every time, defeated so as to more be accurately determined evaporating temperature and reality
Go out load, the relation of air-supply air quantity.
Figure 15 is the schematic diagram of air-conditioning part load control unit 3rd embodiment of the present invention.As shown in figure 15, the sky
Sub-load control device is adjusted to include memory 151, processor 152 and be stored on memory 151 and can be in processor
The computer program run on 152, the processor 152 realizes the method described in any of the above-described embodiment when performing described program
Step.
The above embodiment of the present invention can be adjusted by using load deviation regulation and air quantity difference, and evaporating temperature is stable
In rational scope, stabilized leaving air temp makes leaving air temp be in the range of user's acceptable, so that unit is transported
Row is more stable, soft at part load.The above embodiment of the present invention improves the usage experience of unit；Reduce part negative
Because of the risk of the unstable initiation of temperature during lotus operation.
According to another aspect of the present invention there is provided a kind of air-conditioning, including the air-conditioning part as described in above-mentioned any embodiment
Load control unit.
The air-conditioning provided based on the above embodiment of the present invention, is adjusted by using load deviation regulation and air quantity difference, will
Evaporating temperature is stable in rational scope, and stabilized leaving air temp makes leaving air temp be in the range of user's acceptable,
So that unit operation is more stable, soft at part load.The above embodiment of the present invention improves the usage experience of unit；
Because of the risk of the unstable initiation of temperature when reducing operation at part load.
Air-conditioning part load control unit described above can be implemented as being used to perform function described herein
General processor, programmable logic controller (PLC) (PLC), digital signal processor (DSP), application specific integrated circuit (ASIC), existing
Field programmable gate array (FPGA) or other PLDs, discrete gate or transistor logic, discrete hardware
Component or it is any appropriately combined.
So far, the present invention is described in detail.In order to avoid the design of the masking present invention, this area institute is not described public
Some details known.Those skilled in the art can be appreciated how to implement technology disclosed herein as described above, completely
Scheme.
One of ordinary skill in the art will appreciate that realizing that all or part of step of above-described embodiment can be by hardware
To complete, the hardware of correlation can also be instructed to complete by program, described program can be stored in a kind of computer-readable
In storage medium, storage medium mentioned above can be read-only storage, disk or CD etc..
Description of the invention is provided for the sake of example and description, and is not exhaustively or by the present invention
It is limited to disclosed form.Many modifications and variations are obvious for the ordinary skill in the art.Select and retouch
State embodiment and be more preferably to illustrate the principle and practical application of the present invention, and one of ordinary skill in the art is managed
The solution present invention is so as to design the various embodiments with various modifications suitable for special-purpose.
Claims (22)
1. a kind of air-conditioning part duty control method, it is characterised in that including：
Receive the target wind pushing temperature of user's input；
Current leaving air temp is obtained in real time；
Current unit load is adjusted according to target wind pushing temperature and current leaving air temp.
2. according to the method described in claim 1, it is characterised in that described according to target wind pushing temperature and current leaving air temp pair
Current unit load be adjusted including：
Determine that wind-warm syndrome is poor according to target wind pushing temperature and current leaving air temp；
Leaving air temp rate of change is determined according to current leaving air temp and the leaving air temp before first scheduled time；
Current unit load is adjusted according to the air-out temperature difference and leaving air temp rate of change.
3. method according to claim 2, it is characterised in that it is described according to the air-out temperature difference and leaving air temp rate of change to working as
Preceding unit load be adjusted including：
Judge whether wind-warm syndrome difference and leaving air temp rate of change sum are more than or equal to first predetermined value；
If the air-out temperature difference and leaving air temp rate of change sum are more than or equal to first predetermined value, increase current unit load.
4. method according to claim 3, it is characterised in that it is described according to the air-out temperature difference and leaving air temp rate of change to working as
Preceding unit load, which is adjusted, also to be included：
If the air-out temperature difference and leaving air temp rate of change sum are less than first predetermined value, wind-warm syndrome difference and leaving air temp change are judged
Whether rate sum is more than or equal to second predetermined value, and wherein second predetermined value is less than first predetermined value；
If the air-out temperature difference and leaving air temp rate of change sum are more than or equal to second predetermined value, keep current unit load constant；
If the air-out temperature difference and leaving air temp rate of change sum are less than second predetermined value, current unit load is reduced.
5. method according to claim 4, it is characterised in that
The current unit load of increase includes：Load variations amount is determined according to the air-out temperature difference and leaving air temp rate of change；Ought
Preceding unit load increases the load variations amount；
And/or,
The current unit load of reduction includes：Load variations amount is determined according to the air-out temperature difference and leaving air temp rate of change；Ought
Preceding unit load reduces the load variations amount.
6. the method according to any one of claim 1-5, it is characterised in that also include：
Receive the target evaporating temperature and setting suction superheat of user's input；
Current evaporating temperature is determined according to current leaving air temp and setting suction superheat；
Current blower fan frequency is adjusted according to target evaporating temperature and current evaporating temperature.
7. method according to claim 6, it is characterised in that described according to target evaporating temperature and current evaporating temperature pair
Current blower fan frequency be adjusted including：
Evaporating temperature rate of change is determined according to current evaporating temperature and the evaporating temperature before second scheduled time；
Current blower fan frequency is adjusted according to target evaporating temperature, evaporating temperature rate of change and current evaporating temperature.
8. method according to claim 7, it is characterised in that described according to target evaporating temperature, evaporating temperature rate of change
With current evaporating temperature current blower fan frequency is adjusted including：
According to target evaporating temperature, evaporating temperature rate of change and current evaporating temperature temperature judgment value；
Judge whether temperature judgment value is less than or equal to third predetermined value；
If temperature judgment value is less than or equal to third predetermined value, increase current blower fan frequency.
9. method according to claim 8, it is characterised in that described according to target evaporating temperature, evaporating temperature rate of change
Current blower fan frequency, which is adjusted, with current evaporating temperature also includes：
If temperature judgment value is more than third predetermined value, judge whether temperature judgment value is less than or equal to the 4th predetermined value, wherein the
Four predetermined values are more than third predetermined value；
If temperature judgment value is less than or equal to the 4th predetermined value, keep current blower fan frequency constant；
If temperature judgment value is more than the 4th predetermined value, current blower fan frequency is reduced.
10. method according to claim 9, it is characterised in that
The current blower fan frequency of increase includes：Determine that blower fan frequency changes according to current evaporating temperature and evaporating temperature rate of change
Amount；Current blower fan frequency is increased into the blower fan frequency variation；
And/or,
The current blower fan frequency of reduction includes：Determine that blower fan frequency changes according to current evaporating temperature and evaporating temperature rate of change
Amount；Current blower fan frequency is reduced into the blower fan frequency variation.
11. a kind of air-conditioning part load control unit, it is characterised in that including：
Wind pushing temperature receiving module (1), the target wind pushing temperature for receiving user's input；
Leaving air temp acquisition module (2), for obtaining current leaving air temp in real time；
Load adjustment module (3), for being adjusted according to target wind pushing temperature and current leaving air temp to current unit load.
12. air-conditioning part according to claim 11 load control unit, it is characterised in that load adjustment module (3) is wrapped
Include：
Air-out temperature difference determining unit (31), for determining that wind-warm syndrome is poor according to target wind pushing temperature and current leaving air temp；
Leaving air temp rate of change determining unit (32), for going out wind-warm syndrome according to current leaving air temp and before first scheduled time
Degree determines leaving air temp rate of change；
Load adjustment unit (33), for being adjusted according to the air-out temperature difference and leaving air temp rate of change to current unit load.
13. air-conditioning part according to claim 12 load control unit, it is characterised in that load adjustment unit (33) is wrapped
Include：
First judging submodule (331), for judging whether wind-warm syndrome difference and leaving air temp rate of change sum are more than or equal to first
Predetermined value；
First load adjustment submodule (332), for determining wind-warm syndrome difference and leaving air temp change in the first judging submodule (331)
In the case that rate sum is more than or equal to first predetermined value, increase current unit load.
14. air-conditioning part according to claim 13 load control unit, it is characterised in that load adjustment unit (33) is also
Including：
Second judging submodule (333), for determining wind-warm syndrome difference and leaving air temp rate of change in the first judging submodule (331)
In the case that sum is less than first predetermined value, judge whether wind-warm syndrome difference and leaving air temp rate of change sum are more than or equal to second pre-
Definite value, wherein second predetermined value are less than first predetermined value；
Second load adjustment submodule (334), for determining wind-warm syndrome difference and leaving air temp change in the second judging submodule (333)
In the case that rate sum is more than or equal to second predetermined value, keep current unit load constant；
3rd load adjustment submodule (335), for determining wind-warm syndrome difference and leaving air temp change in the second judging submodule (333)
In the case that rate sum is less than second predetermined value, current unit load is reduced.
15. air-conditioning part according to claim 14 load control unit, it is characterised in that
First load adjustment submodule (332) is used to determine load variations amount according to the air-out temperature difference and leaving air temp rate of change；Will
Current unit load increases the load variations amount；
And/or,
3rd load adjustment submodule (335) is used to determine load variations amount according to the air-out temperature difference and leaving air temp rate of change；Will
Current unit load reduces the load variations amount.
16. the air-conditioning part load control unit according to any one of claim 11-15, it is characterised in that also include：
Degree of superheat receiving module (4), target evaporating temperature and setting suction superheat for receiving user's input；
Evaporating temperature acquisition module (5), for determining current evaporating temperature according to current leaving air temp and setting suction superheat；
Blower fan frequency regulation block (6), for being carried out according to target evaporating temperature and current evaporating temperature to current blower fan frequency
Adjustment.
17. air-conditioning part according to claim 16 load control unit, it is characterised in that blower fan frequency regulation block
(6) include：
Evaporating temperature rate of change determining unit (61), for the evaporation temperature according to current evaporating temperature and before second scheduled time
Degree determines evaporating temperature rate of change；
Blower fan frequency adjustment unit (62), for according to target evaporating temperature, evaporating temperature rate of change and current evaporating temperature pair
Current blower fan frequency is adjusted.
18. air-conditioning part according to claim 17 load control unit, it is characterised in that blower fan frequency adjustment unit
(62) include：
Temperature judgment value determination sub-module (621), for according to target evaporating temperature, evaporating temperature rate of change and when front evaporator temperature
Spend temperature judgment value；
3rd judging submodule (622), for judging whether temperature judgment value is less than or equal to third predetermined value；
First blower fan frequency adjustment submodule (623), for judging that temperature judgment value is less than in the 3rd judging submodule (622)
In the case of third predetermined value, increase current blower fan frequency.
19. air-conditioning part according to claim 18 load control unit, it is characterised in that the blower fan frequency adjustment is single
First (62) also include：
4th judging submodule (624), for judging that temperature judgment value is more than third predetermined value in the 3rd judging submodule (622)
In the case of, judge whether temperature judgment value is less than or equal to the 4th predetermined value, wherein the 4th predetermined value is more than third predetermined value；
Second blower fan frequency adjustment submodule (625), for judging that temperature judgment value is less than in the 4th judging submodule (624)
In the case of the 4th predetermined value, keep current blower fan frequency constant；
3rd blower fan frequency adjustment submodule (626), for judging that temperature judgment value is more than the in the 4th judging submodule (624)
In the case of four predetermined values, current blower fan frequency is reduced.
20. air-conditioning part according to claim 19 load control unit, it is characterised in that
First blower fan frequency adjustment submodule (623) is used to determine blower fan frequency according to current evaporating temperature and evaporating temperature rate of change
Rate variable quantity；Current blower fan frequency is increased into the blower fan frequency variation；
And/or,
3rd blower fan frequency adjustment submodule (626) is used to determine blower fan frequency according to current evaporating temperature and evaporating temperature rate of change
Rate variable quantity；Current blower fan frequency is reduced into the blower fan frequency variation.
21. a kind of air-conditioning part load control unit, including memory (151), processor (152) and it is stored in memory
(151) on and the computer program that can be run on processor (152), it is characterised in that the processor (152) performs described
The method and step any one of claim 1-10 is realized during program.
22. a kind of air-conditioning, it is characterised in that including the air-conditioning part spatial load forecasting as any one of claim 11-21
Device.
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| CN201710580470.3A CN107218707A (en) | 2017-07-17 | 2017-07-17 | Air conditioner and partial load control method and device thereof |
| CN201810114161.1A CN108302722A (en) | 2017-07-17 | 2018-02-05 | Air conditioner and partial load control method and device thereof |
| CN201810114162.6A CN108278736B (en) | 2017-07-17 | 2018-02-05 | Air conditioner and partial load control method and device thereof |
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| CN201810114162.6A Active CN108278736B (en) | 2017-07-17 | 2018-02-05 | Air conditioner and partial load control method and device thereof |
| CN201810114161.1A Pending CN108302722A (en) | 2017-07-17 | 2018-02-05 | Air conditioner and partial load control method and device thereof |
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| CN108613325A (en) * | 2018-05-04 | 2018-10-02 | 广东美的暖通设备有限公司 | It can need modification method and system |
| CN109028484A (en) * | 2018-08-20 | 2018-12-18 | 珠海格力电器股份有限公司 | Method and device for adjusting temperature and air conditioning device |
| CN111750501A (en) * | 2020-05-15 | 2020-10-09 | 海信（山东）空调有限公司 | Air conditioner and control method |
| CN112856581A (en) * | 2020-12-31 | 2021-05-28 | 广东积微科技有限公司 | Variable-frequency fresh air system and control method thereof |
| CN114576797A (en) * | 2022-03-28 | 2022-06-03 | 珠海格力电器股份有限公司 | Control method of air conditioner and air conditioner |
| CN114963471A (en) * | 2021-02-24 | 2022-08-30 | 合肥美的暖通设备有限公司 | Control method of air conditioning system, air conditioning system and readable storage medium |
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| CN107218707A (en) * | 2017-07-17 | 2017-09-29 | 珠海格力电器股份有限公司 | Air conditioner and partial load control method and device thereof |
| CN109556244A (en) * | 2018-10-17 | 2019-04-02 | 青岛海尔空调电子有限公司 | Air-conditioning system and its leaving air temp control method |
| CN110470032B (en) * | 2019-08-05 | 2021-09-21 | 宁波奥克斯电气股份有限公司 | Air outlet temperature control method and device, air conditioner and computer readable storage medium |
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| CN114963471B (en) * | 2021-02-24 | 2024-05-28 | 合肥美的暖通设备有限公司 | Control method of air conditioning system, air conditioning system and readable storage medium |
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| CN114576797B (en) * | 2022-03-28 | 2023-04-11 | 珠海格力电器股份有限公司 | Control method of air conditioner and air conditioner |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108278736B (en) | 2021-09-10 |
| CN108278736A (en) | 2018-07-13 |
| CN108302722A (en) | 2018-07-20 |
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