CN108278736A - Air-conditioning and its air-conditioning part duty control method and device - Google Patents
Air-conditioning and its air-conditioning part duty control method and device Download PDFInfo
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- CN108278736A CN108278736A CN201810114162.6A CN201810114162A CN108278736A CN 108278736 A CN108278736 A CN 108278736A CN 201810114162 A CN201810114162 A CN 201810114162A CN 108278736 A CN108278736 A CN 108278736A
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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 present invention discloses a kind of air-conditioning and its air-conditioning part duty control method and device.The air-conditioning part duty control method includes：Receive target evaporating temperature input by user and setting suction superheat；Current evaporating temperature is determined according to current leaving air temp and setting suction superheat；Current wind turbine frequency is adjusted according to target evaporating temperature and current evaporating temperature.The present invention is adjusted by using air quantity difference, and evaporating temperature is stablized in reasonable range, and stabilized leaving air temp makes leaving air temp be within the scope of user's acceptable, to keep unit operation more stable, soft at part 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
Current High cooling power frequency conversion commercialization Water cooling cold air blower group market largely occurs, according to previous operating statistic
Data show, the frequency converter sets overwhelming majority times are all to run at part load, for 100kw or more unit just
Even more so, this kind of unit often directly serves in bed rearrangement building, and the workload demand of user just always stops under such circumstances
At part load.
Current frequency converter sets, under sub-load operation there is a problem of that evaporating temperature is unstable, air quantity is unstable, this
Even if efficiency variation that is very high very energy saving but can influencing leaving air temp, seriously affects the usage experience of user, shadow in the case of sample
The brand of the company of sound.
Invention content
In view of the above technical problem, the present invention provides a kind of air-conditioning and its air-conditioning part duty control method and device,
It is adjusted using load deviation, unit operation is made more to stablize at part load.
According to an aspect of the present invention, a kind of air-conditioning part duty control method is provided, including：
Receive target evaporating temperature input by user and setting suction superheat；
Current evaporating temperature is determined according to current leaving air temp and setting suction superheat；
Current wind turbine 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 wind turbine
Frequency be adjusted including：
Evaporating temperature change rate is determined according to the evaporating temperature before current evaporating temperature and predetermined load regulating time；
Current wind turbine frequency is adjusted according to target evaporating temperature, evaporating temperature change rate and current evaporating temperature.
In one embodiment of the invention, described according to target evaporating temperature, evaporating temperature change rate and to work as front evaporator
Temperature to current wind turbine frequency be adjusted including：
According to target evaporating temperature, evaporating temperature change rate and current evaporating temperature temperature judgment value；
Judge whether temperature judgment value is less than or equal to the first Load Regulation threshold value；
If temperature judgment value is less than or equal to the first Load Regulation threshold value, increase current wind turbine frequency.
In one embodiment of the invention, described according to target evaporating temperature, evaporating temperature change rate and to work as front evaporator
Temperature is adjusted current wind turbine frequency：
If temperature judgment value is more than the first Load Regulation threshold value, it is negative to judge whether temperature judgment value is less than or equal to second
Lotus adjusts threshold value, wherein the second Load Regulation threshold value is more than the first Load Regulation threshold value；
If temperature judgment value is less than or equal to the second Load Regulation threshold value, keep current wind turbine frequency constant；
If temperature judgment value is more than the second Load Regulation threshold value, current wind turbine frequency is reduced.
In one embodiment of the invention, the current wind turbine frequency of increase includes：According to current evaporating temperature and steaming
Hair rate of temperature change determines wind turbine frequency variation；Current wind turbine frequency is increased into the wind turbine frequency variation.
In one embodiment of the invention, the current wind turbine frequency of reduction includes：According to current evaporating temperature and steaming
Hair rate of temperature change determines wind turbine frequency variation；Current wind turbine frequency is reduced into the wind turbine frequency variation.
In one embodiment of the invention, the method further includes：
Receive target wind pushing temperature input by user；
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 according to target wind pushing temperature and current leaving air temp to 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 change rate is determined according to the leaving air temp before current leaving air temp and predetermined wind amount regulating time；
Current unit load is adjusted according to the outlet air temperature difference and leaving air temp change rate.
In one embodiment of the invention, described negative to current unit according to the outlet air temperature difference and leaving air temp change rate
Lotus be adjusted including：
Judge whether the sum of wind-warm syndrome difference and leaving air temp change rate are more than or equal to the first air quantity and adjust threshold value；
If the sum of the outlet air temperature difference and leaving air temp change rate, which are more than or equal to the first air quantity, adjusts threshold value, increase current machine
Group load.
In one embodiment of the invention, described negative to current unit according to the outlet air temperature difference and leaving air temp change rate
Lotus, which is adjusted, further includes：
If the sum of the outlet air temperature difference and leaving air temp change rate be less than the first air quantity adjust threshold value, judge wind-warm syndrome difference and
Whether the sum of leaving air temp change rate, which is more than or equal to the second air quantity, adjusts threshold value, wherein the second air quantity, which adjusts threshold value, is less than first
Air quantity adjusts threshold value；
If the sum of the outlet air temperature difference and leaving air temp change rate, which are more than or equal to the second air quantity, adjusts threshold value, current machine is kept
Group load is constant；
If the sum of the outlet air temperature difference and leaving air temp change rate, which are less than the second air quantity, adjusts threshold value, it is negative to reduce current unit
Lotus.
In one embodiment of the invention, the current unit load of increase includes：According to the outlet air temperature difference and go out wind-warm syndrome
Degree change rate 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 outlet air temperature difference and go out wind-warm syndrome
Degree change rate determines load variations amount；Current unit load is reduced into the load variations amount.
According to another aspect of the present invention, a kind of air-conditioning part load control unit is provided, including：
Degree of superheat receiving module, for receiving target evaporating temperature input by user and setting suction superheat；
Evaporating temperature acquisition module, for determining according to current leaving air temp and setting suction superheat and working as front evaporator temperature
Degree；
Wind turbine frequency regulation block, for according to target evaporating temperature and current evaporating temperature to current wind turbine frequency into
Row adjustment.
In one embodiment of the invention, wind turbine frequency regulation block includes：
Evaporating temperature change rate determination unit, before according to current evaporating temperature and predetermined load regulating time
Evaporating temperature determines evaporating temperature change rate；
Wind turbine frequency adjustment unit, for according to target evaporating temperature, evaporating temperature change rate and current evaporating temperature pair
Current wind turbine frequency is adjusted.
In one embodiment of the invention, wind turbine frequency adjustment unit includes：
Temperature judgment value determination sub-module, for according to target evaporating temperature, evaporating temperature change rate and when front evaporator temperature
Spend temperature judgment value；
Third judging submodule, for judging whether temperature judgment value is less than or equal to the first Load Regulation threshold value；
First wind turbine frequency adjusts submodule, for being less than or equal to the in third judging submodule judgement temperature judgment value
In the case of one Load Regulation threshold value, increase current wind turbine frequency.
In one embodiment of the invention, the wind turbine frequency adjustment unit further includes：
4th judging submodule, for being more than the first Load Regulation threshold in third judging submodule judgement temperature judgment value
In the case of value, judge whether temperature judgment value is less than or equal to the second Load Regulation threshold value, wherein the second Load Regulation threshold value is big
In the first Load Regulation threshold value；
Second wind turbine frequency adjusts submodule, for being less than or equal to the in the 4th judging submodule judgement temperature judgment value
In the case of two Load Regulation threshold values, keep current wind turbine frequency constant；
Third wind turbine frequency adjusts submodule, negative for being more than second in the 4th judging submodule judgement temperature judgment value
In the case that lotus adjusts threshold value, current wind turbine frequency is reduced.
In one embodiment of the invention, the first wind turbine frequency adjustment submodule be used for according to current evaporating temperature and
Evaporating temperature change rate determines wind turbine frequency variation；Current wind turbine frequency is increased into the wind turbine frequency variation.
In one embodiment of the invention, third wind turbine frequency adjustment submodule be used for according to current evaporating temperature and
Evaporating temperature change rate determines wind turbine frequency variation；Current wind turbine frequency is reduced into the wind turbine frequency variation.
In one embodiment of the invention, air-conditioning part load control unit further includes：
Wind pushing temperature receiving module, for receiving target wind pushing temperature input by user；
Leaving air temp acquisition module, for obtaining current leaving air temp in real time；
Load adjustment module, for being adjusted to current unit load according to target wind pushing temperature and current leaving air temp
It is whole.
In one embodiment of the invention, load adjustment module includes：
Outlet air temperature difference determination unit, for determining that wind-warm syndrome is poor according to target wind pushing temperature and current leaving air temp；
Leaving air temp change rate determination unit, before according to current leaving air temp and predetermined wind amount regulating time
Leaving air temp determines leaving air temp change rate；
Load adjustment unit, for being adjusted to current unit load according to the outlet air temperature difference and leaving air temp change rate.
In one embodiment of the invention, load adjustment unit includes：
First judging submodule, for judging whether the sum of wind-warm syndrome difference and leaving air temp change rate are more than or equal to first
Air quantity adjusts threshold value；
First load adjustment submodule, for determining wind-warm syndrome difference and leaving air temp change rate in the first judging submodule
The sum of be more than or equal to the first air quantity adjust threshold value in the case of, increase current unit load.
In one embodiment of the invention, load adjustment unit further includes：
Second judgment submodule, for determining the sum of wind-warm syndrome difference and leaving air temp change rate in the first judging submodule
In the case of adjusting threshold value less than the first air quantity, judge whether the sum of wind-warm syndrome difference and leaving air temp change rate are more than or equal to the
Two air quantity adjust threshold value, wherein the second air quantity, which adjusts threshold value, is less than the first air quantity adjusting threshold value；
Second load adjustment submodule, for determining wind-warm syndrome difference and leaving air temp change rate in second judgment submodule
The sum of be more than or equal to the second air quantity adjust threshold value in the case of, keep current unit load constant；
Third load adjustment submodule, for determining wind-warm syndrome difference and leaving air temp change rate in second judgment submodule
The sum of be less than the second air quantity adjust threshold value in the case of, reduce current unit load.
In one embodiment of the invention, the first load adjustment submodule is used for according to the outlet air temperature difference and leaving air temp
Change rate determines load variations amount；Current unit load is increased into the load variations amount.
In one embodiment of the invention, third load adjustment submodule is used for according to the outlet air temperature difference and leaving air temp
Change rate determines load variations amount；Current unit load is reduced into the load variations amount.
According to another aspect of the present invention, a kind of air-conditioning part load control unit, including memory, processor are provided
And the computer program that can be run on a memory and on a processor is stored, the processor is realized when executing described program
Method and step described in any of the above-described embodiment.
According to another aspect of the present invention, a kind of air-conditioning is provided, includes the air-conditioning part as described in above-mentioned any embodiment
Load control unit.
According to another aspect of the present invention, a kind of computer readable storage medium, the computer-readable storage medium are provided
Matter is stored with computer instruction, is realized such as above-mentioned air-conditioning part as described in an embodiment of taking up an official post when described instruction is executed by processor
Duty control method.
The present invention is adjusted by using air quantity difference, can by evaporating temperature stablize in reasonable range, it is stabilized go out
Air temperature makes leaving air temp be within the scope of user's acceptable, to keep unit operation more steady at part load
It is fixed, it is soft.
Description of the drawings
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, below will to embodiment or
Attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
Some embodiments of the present invention, for those of ordinary skill in the art, without creative efforts, also
It can be obtain other attached drawings according to these attached drawings.
Fig. 1 a are the schematic diagram of air-conditioning part duty control method first embodiment of the present invention.
Fig. 1 b are the schematic diagram of air-conditioning part duty control method second embodiment of the present invention.
Fig. 2 a are the schematic diagram of air-conditioning part duty control method 3rd embodiment of the present invention.
Fig. 2 b are the schematic diagram of air-conditioning part duty control method fourth embodiment of the present invention.
Fig. 3 is according to target wind pushing temperature and current leaving air temp in one embodiment of the invention to current unit load
The schematic diagram being adjusted.
Fig. 4 be in one embodiment of the invention according to the outlet air temperature difference and leaving air temp change rate to current unit load into
The schematic diagram of row adjustment.
Fig. 5 is according to target evaporating temperature and current evaporating temperature in one embodiment of the invention to current wind turbine frequency
The schematic diagram being adjusted.
Fig. 6 is in one embodiment of the invention according to target evaporating temperature, evaporating temperature change rate and current evaporating temperature
The schematic diagram that current wind turbine frequency is adjusted.
Fig. 7 is the control sequential figure of the 5th embodiment of air-conditioning part of the present invention duty control method.
Fig. 8 is regulating effect pair of the air-conditioning part of the present invention duty control method with traditional control method to wind pushing temperature
Compare schematic diagram.
Fig. 9 a are the schematic diagram of air-conditioning part load control unit first embodiment of the present invention.
Fig. 9 b are the schematic diagram of air-conditioning part load control unit second embodiment of the present invention.
Figure 10 is the schematic diagram of air-conditioning part load control unit 3rd 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 that one embodiment of the invention apoplexy unit frequency adjusts 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 fourth embodiment of the present invention.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Below
Description only actually at least one exemplary embodiment be it is illustrative, never as to the present invention and its application or
Any restrictions used.Based on the embodiments of the present invention, those of ordinary skill in the art are not before making creative work
The every other embodiment obtained is put, shall fall within the protection scope of the present invention.
Unless specifically stated otherwise, positioned opposite, the digital table of the component and step that otherwise illustrate in these embodiments
It is not limited the scope of the invention up to formula and numerical value.
Simultaneously, it should be appreciated that for ease of description, the size of attached various pieces shown in the drawings is not according to reality
What the proportionate relationship on border was drawn.
Technology, method and apparatus known to person of ordinary skill in the relevant may be not discussed in detail, but suitable
In the case of, the technology, method and apparatus should be considered as authorizing part of specification.
In shown here and discussion all examples, any occurrence should be construed as merely illustrative, 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 indicate similar terms in following attached drawing, therefore, once a certain item exists
It is defined, then it need not be further discussed in subsequent attached drawing in one attached drawing.
Fig. 1 a are the schematic diagram of air-conditioning part duty control method first embodiment of the present invention.Preferably, the present embodiment can
It is executed by air-conditioning part of the present invention load control unit.This approach includes the following steps：
Step 1, target wind pushing temperature Tm input by user 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
The current unit load refers to the output of current compressor load, i.e. current compression unit frequency F.
Based on the air-conditioning part duty control method that the above embodiment of the present invention provides, adjusted by using load deviation
Leaving air temp can be made to be within the scope of user's acceptable with stabilized leaving air temp, to keep unit operation negative in part
More stablize under lotus, it is soft.
Fig. 1 b are the schematic diagram of air-conditioning part duty control method second embodiment of the present invention.Preferably, the present embodiment can
It is executed by air-conditioning part of the present invention load control unit.This approach includes the following steps：
Step 4, target evaporating temperature t2 input by user and setting suction superheat Tx 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 may include：It is determined according to formula t1=Ts-Tx and works as front evaporator temperature
Spend t1.
Step 6, current wind turbine frequency is adjusted according to target evaporating temperature t2 and current evaporating temperature t1.
Based on the air-conditioning part duty control method that the above embodiment of the present invention provides, adjusted by using air quantity difference,
Evaporating temperature is stablized in reasonable range, stabilized leaving air temp makes leaving air temp be in user's acceptable range
It is interior, to keep unit operation more stable, soft at part load.The above embodiment of the present invention solves existing frequency changer
The group operation technical problem that there are evaporating temperatures is unstable, air quantity is unstable at part load, improves the use of unit
Experience；Because of the risk of the unstable initiation of temperature when reducing operation at part load.
Fig. 2 a are the schematic diagram of air-conditioning part duty control method 3rd embodiment of the present invention.Preferably, the present embodiment can
It is executed by air-conditioning part of the present invention load control unit.As shown in Figure 2 a, this approach includes the following steps：
Step 1, target wind pushing temperature Tm input by user 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, target evaporating temperature t2 input by user and setting suction superheat Tx 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 may include：It is determined according to formula t1=Ts-Tx and works as front evaporator temperature
Spend t1.
Step 6, current wind turbine frequency is adjusted according to target evaporating temperature t2 and current evaporating temperature t1.
Fig. 2 b are the schematic diagram of air-conditioning part duty control method fourth embodiment of the present invention.Preferably, the present embodiment can
It is executed by air-conditioning part of the present invention load control unit.As shown in Figure 2 b, this approach includes the following steps：
Step 4, target evaporating temperature t2 input by user and setting suction superheat Tx 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 may include：It is determined according to formula t1=Ts-Tx and works as front evaporator temperature
Spend t1.
Step 6, current wind turbine frequency is adjusted according to target evaporating temperature t2 and current evaporating temperature t1.
Step 1, target wind pushing temperature Tm input by user 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.
Based on the air-conditioning part duty control method that the above embodiment of the present invention provides, adjusted by using load deviation
It adjusts, evaporating temperature is stablized in reasonable range, stabilized leaving air temp with air quantity difference, so that leaving air temp is in and use
Within the scope of the acceptable of family, to keep unit operation more stable, soft at part load.The above embodiment of the present invention
Solve the existing frequency converter sets technical problem that run that there are evaporating temperatures at part load unstable, air quantity is unstable,
Improve the usage experience of unit；Because of the risk of the unstable initiation of temperature when reducing operation at part load.
Fig. 3 is according to target wind pushing temperature and current leaving air temp in one embodiment of the invention to current unit load
The schematic diagram being adjusted.As shown in figure 3, the step 3 in Fig. 1 a or Fig. 2 a or Fig. 2 b embodiments may 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 predetermined wind amount regulating time Δ t1(t-Δt1)
Determine leaving air temp change rate Δ T2=Tst-Ts(t-Δt1)。
Step 33, current unit load F is adjusted according to outlet air temperature difference T1 and leaving air temp change rate Δ T2.
The above embodiment of the present invention is adjusted by using load deviation, specifically can be according to the outlet air temperature difference and leaving air temp
Change rate is adjusted current unit load, so as to stabilized leaving air temp, thus avoids occurring leaving air temp not
The phenomenon that meeting user demand improve the stability of unit operation at part load.
Fig. 4 be in one embodiment of the invention according to the outlet air temperature difference and leaving air temp change rate to current unit load into
The schematic diagram of row adjustment.As shown in figure 4, the step 33 in Fig. 3 embodiments may include：
Step 331, the sum of wind temperature difference T1 and leaving air temp change rate Δ T2 Δ T1+ are judged with the first predetermined period
Whether Δ T2, which is more than or equal to the first air quantity, adjusts threshold value.If Δ T1+ Δs T2, which is more than or equal to the first air quantity, adjusts threshold value, execute
Step 332；Otherwise, if Δ T1+ Δs T2 is less than the first air quantity and adjusts threshold value, 333 are thened follow the steps.
Step 332, increase current unit load F.
In one embodiment of the invention, step 332 may include：
Step 3321, load variations amount Δ F is determined according to outlet air temperature difference T1 and leaving air temp change rate 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 the second air quantity and adjusts threshold value with the first predetermined period, wherein
Second air quantity adjusts threshold value and is less than the first air quantity adjusting threshold value.If Δ T1+ Δs T2, which is more than or equal to the second air quantity, adjusts threshold value,
Execute step 334；Otherwise, if Δ T1+ Δs T2 is less than the second air quantity and adjusts threshold value, 335 are thened follow the steps.
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 may include：
Step 3351, load variations amount Δ F is determined according to outlet air temperature difference T1 and leaving air temp change rate 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 outlet air temperature difference and rate of temperature change, increase every time
Or certain load incrementss are reduced, so as to more be accurately determined the relationship of wind pushing temperature and reality output load.
In one embodiment of the invention, step 3321 or step 3351 may include：According to formula Δ F=| Δ
T1* α+Δ T2* γ | determine load variations amount Δ F, wherein α is temperature difference correction factor, and γ is leaving air temp change rate amendment system
Number.
In one particular embodiment of the present invention, the first predetermined period described in Fig. 4 embodiments be 15s, described second
It is -1 DEG C that air quantity, which adjusts threshold value, and it is 2 DEG C that first air quantity, which adjusts threshold value,.
That is, in this specific embodiment, if monitor Δ Δ T2 >=2 DEG C T1+ per 15s, unit load F increases Δ F,
That is F=F+ Δs F.
If monitor -1≤Δ Δ T2≤2 DEG C T1+ per 15s, unit load F is constant.
If monitor T2≤- 1 DEG C of Δ T1+ Δs per 15s, unit load F reduces Δ F, i.e. F=F- Δs F.
The above embodiment of the present invention can be by comparing the sum of the outlet air temperature difference and rate of temperature change and two threshold values
Compared with to determine to increased or decrease unit load, so as to more be accurately determined the pass of wind pushing temperature and reality output load
System.
Fig. 5 is according to target evaporating temperature and current evaporating temperature in one embodiment of the invention to current wind turbine frequency
The schematic diagram being adjusted.As shown in figure 5, the step 6 in Fig. 1 b or Fig. 2 a or Fig. 2 b embodiments may include：
Step 61, according to the evaporating temperature t1 before current evaporating temperature t1 and predetermined load regulating time Δ t2(t-Δt2)
Determine evaporating temperature change rate Δ t2=t1t-t1(t-Δt2)。
Step 62, according to target evaporating temperature t2, evaporating temperature change rate 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, to solve machine
The unstable problem of evaporating temperature in group operation at part load.The above embodiment of the present invention is adjusted by using load deviation
It adjusts, evaporating temperature can be stablized in reasonable range, and outlet air can be made with stabilized leaving air temp with air quantity difference
Temperature is within the scope of user's acceptable, soft to make unit operation more stablize at part load.
Fig. 6 is in one embodiment of the invention according to target evaporating temperature, evaporating temperature change rate and current evaporating temperature
The schematic diagram that current wind turbine frequency is adjusted.As shown in fig. 6, the step 62 in Fig. 5 embodiments may include：
Step 621, with the second predetermined period, according to target evaporating temperature t2, evaporating temperature change rate 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 the first Load Regulation threshold value.If temperature judgment value t is small
In equal to the first Load Regulation threshold value, 623 are thened follow the steps；Otherwise, if temperature judgment value is more than the first air quantity and adjusts threshold value,
Then follow the steps 624.
Step 623, increase current wind turbine frequency f.Thus the above embodiment of the present invention can temperature judgment value be less than etc.
In the case of the first Load Regulation threshold value, increase current wind turbine frequency, to realize the stability control to air quantity
In one embodiment of the invention, step 623 may include：
Step 6231, wind turbine frequency variation Δ is determined according to current evaporating temperature t1 and evaporating temperature change rate Δ t2
f。
Step 6232, current wind turbine frequency f is increased into the wind turbine frequency variation Δ f.
Step 624, judge whether temperature judgment value is less than or equal to the second Load Regulation threshold value, wherein the second Load Regulation
Threshold value is more than the first Load Regulation threshold value.If temperature judgment value t is less than or equal to the second Load Regulation threshold value, then follow the steps
625；Otherwise, if temperature judgment value is more than the second Load Regulation threshold value, 626 are thened follow the steps.
Step 625, keep current wind turbine frequency f constant.
Step 626, current wind turbine frequency f is reduced.
In one embodiment of the invention, step 626 may include：
Step 6261, wind turbine frequency variation Δ is determined according to current evaporating temperature t1 and evaporating temperature change rate Δ t2
f。
Step 6262, current wind turbine frequency f is reduced into the wind turbine frequency variation Δ f.
The above embodiment of the present invention can determine that wind turbine frequency changes according to current evaporating temperature and evaporating temperature change rate
Amount, increases or decreases certain wind turbine frequency variation every time, defeated so as to more be accurately determined evaporating temperature and reality
Go out load, air-supply air quantity relationship.
In one embodiment of the invention, step 6231 or step 6261 may include：According to formula Δ f=| t1* β
+ Δ t2* δ | determine wind turbine frequency variation Δ f, wherein β is evaporating temperature correction factor, and δ is evaporating temperature change rate amendment
Coefficient.
In one particular embodiment of the present invention, the second predetermined period described in Fig. 6 embodiments be 8s, described first
Load Regulation threshold value is -2 DEG C, and the second Load Regulation threshold value is 2 DEG C.
That is, in this specific embodiment, if detect t1+ Δ t2≤t2-2 per 8s, wind turbine frequency f increases Δ f, i.e. f
=f+ Δs f.
If detect t2-2≤t1+ Δ t2≤t2+2 per 8s, wind turbine frequency f is constant；
If detect t1+ Δ t2 >=t2+2 per 8s, wind turbine frequency f reduces Δ f, i.e. f=f+ Δs f.
The above embodiment of the present invention provides a kind of frequency conversion commercialization High cooling power cold wind unit air-conditioning part with variable air rate function
Point duty control method, can be by the temperature that determines target evaporating temperature, evaporating temperature change rate and current evaporating temperature
Judgment value is compared with two threshold values, to determine to increased or decrease wind turbine frequency, so as to more accurately realize to wind
The stability contorting of amount and evaporating temperature, and then wind pushing temperature is controlled, it is steady in operation at part load to further increase unit
It is qualitative.
Fig. 7 is the control sequential figure of the 5th embodiment of air-conditioning part of the present invention duty control method.As shown in fig. 7, unit
It powers on and is switched on after completing initialization procedure, in starting up runs, throttling set aperture, wind turbine frequency are according to actual condition
It adjusts, compressor is adjusted after being run 3 minutes with initial load (initial operating frequency) according to actual condition, is gradually adjusted to 100%
Load.
Specifically, air-conditioning part shown in Fig. 7 duty control method may include：
First stage, unit are opened
Unit powers on, and carries out in initialization procedure, throttling set is beaten to maximum opening；Wind turbine frequency is carried to highest；Wind
Mechanical, electrical sub- expansion valve (EXV) is closed.
Second stage, unit booting
Throttling set shifts to an earlier date compressor, is adjusted to initial opening；Wind turbine shifts to an earlier date compressor, is adjusted to original frequency；Compression
Machine is adjusted to initial load unlatching, runs 3 minutes.
In the above embodiment of the present invention, it is to allow refrigerant first to lead to that electric expansion valve is opened in advance, and wind turbine is first opened
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
It breaks 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 controls unit sub-load according to actual condition.
In one embodiment of the invention, as shown in fig. 7, in the phase III, air-conditioning part duty control method
Cannot also include：The aperture of electric expansion valve EXV is controlled.The aperture variable quantity of electric expansion valve is to pass through air-breathing
Degree of 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.It is adjusted according to practical suction superheat after initial opening end of run, setting target evaporating temperature t2.Per 5s tune
Section is primary, and 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, in display board as interaction platform under the load control unit of air-conditioning part
Up to test pattern start stop command, air-conditioning part load control unit can according to receive sensor parameters, temperature-sensitive bag parameter,
A.C. contactor adjusts compressor load signal, electronic expansion valve signal, wind turbine frequency signal and controls unit with this in real time
Operating status even running.
Fig. 8 is regulating effect pair of the air-conditioning part of the present invention duty control method with traditional control method to wind pushing temperature
Compare 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 also avoids
Some extreme operating conditions when open state increase operation stability.
The above embodiment of the present invention provides a kind of completely new sub-load control program for large-size variable-frequency cold wind unit.This
The air-conditioning part duty control method of invention above-described embodiment can be adapted for large-size variable-frequency cold wind unit.The above-mentioned reality of the present invention
Stability contorting to evaporating temperature can be realized by applying example, and then can be with stabilized wind pushing temperature, and it is negative in part to improve unit
The running stability of lotus.
Fig. 9 a are the schematic diagram of air-conditioning part load control unit first embodiment of the present invention.As shown in Fig. 9, the sky
It may include wind pushing temperature receiving module 1, leaving air temp acquisition module 2 and load adjustment module to adjust sub-load control device
3, wherein：
Wind pushing temperature receiving module 1, for receiving target wind pushing temperature Tm input by user.
Leaving air temp acquisition module 2, for obtaining current leaving air temp Ts in real time.
Load adjustment module 3, is used for, according to target wind pushing temperature Tm and current leaving air temp Ts to current unit load
It is adjusted, wherein the current unit load refers to the output of current compressor load, i.e. current compression unit frequency F.
Based on the air-conditioning part load control unit that the above embodiment of the present invention provides, adjusted by using load deviation
Leaving air temp can be made to be within the scope of user's acceptable with stabilized leaving air temp, to keep unit operation negative in part
More stablize under lotus, it is soft.
Fig. 9 b are the schematic diagram of air-conditioning part load control unit second embodiment of the present invention.As shown in figure 9b, the sky
It may include degree of superheat receiving module 4, evaporating temperature acquisition module 5 and wind turbine frequency adjustment mould to adjust sub-load control device
Block 6, wherein：
Degree of superheat receiving module 4, for receiving target evaporating temperature t2 input by user and setting suction superheat Tx.
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 true according to formula t1=Ts-Tx
Settled front evaporator temperature t1.
Wind turbine frequency regulation block 6 is used for according to target evaporating temperature t2 and current evaporating temperature t1 to current wind turbine frequency
Rate is adjusted.
In one embodiment of the invention, the wind turbine frequency regulation block 6 in Fig. 9 b embodiments can be as Figure 13 is real
Apply the wind turbine frequency regulation block described in example.
Based on the air-conditioning part load control unit that the above embodiment of the present invention provides, adjusted by using air quantity difference,
Evaporating temperature is stablized in reasonable range, stabilized leaving air temp makes leaving air temp be in user's acceptable range
It is interior, to keep unit operation more stable, soft at part load.The above embodiment of the present invention solves existing frequency changer
The group operation technical problem that there are evaporating temperatures is unstable, air quantity is unstable at part load, improves the use of unit
Experience；Because of the risk of the unstable initiation of temperature when reducing operation at part load.
Figure 10 is the schematic diagram of air-conditioning part load control unit 3rd embodiment of the present invention.With Fig. 9 a illustrated embodiments
It compares, in the embodiment shown in fig. 10, air-conditioning part load control unit can also include degree of superheat receiving module 4, steam
Temperature acquisition module 5 and wind turbine frequency regulation block 6 are sent out, wherein：
Degree of superheat receiving module 4, for receiving target evaporating temperature t2 input by user and setting suction superheat Tx.
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 true according to formula t1=Ts-Tx
Settled front evaporator temperature t1.
Wind turbine frequency regulation block 6 is used for according to target evaporating temperature t2 and current evaporating temperature t1 to current wind turbine frequency
Rate is adjusted.
Based on the air-conditioning part load control unit that the above embodiment of the present invention provides, adjusted by using load deviation
It adjusts, evaporating temperature is stablized in reasonable range, stabilized leaving air temp with air quantity difference, so that leaving air temp is in and use
Within the scope of the acceptable of family, to keep unit operation more stable, soft at part load.The above embodiment of the present invention
Solve the existing frequency converter sets technical problem that run that there are evaporating temperatures at part load unstable, air quantity is unstable,
Improve the usage experience of unit；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 a or Figure 10 are real
The load adjustment module 3 in example is applied to may include outlet air temperature difference determination unit 31, leaving air temp change rate determination unit 32 and bear
Lotus adjustment unit 33：
Outlet air temperature difference determination unit 31, for determining wind-warm syndrome according to target wind pushing temperature Tm and current leaving air temp Ts
Poor Δ T1=Ts-Tm.
Leaving air temp change rate determination unit 32, for according to current leaving air temp Ts and predetermined wind amount regulating time
Leaving air temp Ts before Δ t1(t-Δt1)Determine leaving air temp change rate Δ T2.
Wherein, leaving air temp change rate Δ T2=Tst-Ts(t-Δt1)。
Load adjustment unit 33, for negative to current unit according to outlet air temperature difference T1 and leaving air temp change rate Δ T2
Lotus F is adjusted.
The above embodiment of the present invention is adjusted by using load deviation, specifically can be according to the outlet air temperature difference and leaving air temp
Change rate is adjusted current unit load, so as to stabilized leaving air temp, thus avoids occurring leaving air temp not
The phenomenon that meeting user demand improve the stability of unit operation at part load.
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 may include the first judging submodule 331, the first load adjustment submodule 332, second judge submodule
Block 333, the second load adjustment submodule 334 and third load adjustment submodule 335, wherein：
First judging submodule 331, for judging whether the sum of wind temperature difference T1 and leaving air temp change rate Δ T2 are big
In equal to the first air quantity adjusting threshold value；
First load adjustment submodule 332, for determining wind temperature difference T1 and outlet air in the first judging submodule 331
In the case that the sum of rate of temperature change Δ T2 is more than or equal to the first air quantity adjusting threshold value, increase current unit load.
In one embodiment of the invention, the first load adjustment submodule 332 is used for according to outlet air temperature difference T1 and goes out
Air temperature change rate Δ T2 determines load variations amount；Current unit load is increased into the load variations amount.
Second judgment submodule 333, for determining wind temperature difference T1 and leaving air temp in the first judging submodule 331
In the case that the sum of change rate Δ T2 is less than the first air quantity adjusting threshold value, wind temperature difference T1 and leaving air temp change rate are judged
Whether the sum of Δ T2, which is more than or equal to the second air quantity, adjusts threshold value, wherein the second air quantity, which adjusts threshold value, is less than the first air quantity adjusting threshold
Value；
Second load adjustment submodule 334, for determining wind temperature difference T1 and outlet air in second judgment submodule 333
In the case that the sum of rate of temperature change Δ T2 is more than or equal to the second air quantity adjusting threshold value, keep current unit load constant；
Third load adjustment submodule 335, for determining wind temperature difference T1 and outlet air in second judgment submodule 333
In the case that the sum of rate of temperature change Δ T2 is less than the second air quantity adjusting threshold value, current unit load is reduced.
The above embodiment of the present invention can be by comparing the sum of the outlet air temperature difference and rate of temperature change and two threshold values
Compared with to determine to increased or decrease unit load, so as to more be accurately determined the pass of wind pushing temperature and reality output load
System.
In one particular embodiment of the present invention, the first predetermined period described in Figure 12 embodiments is 15s, described the
It is -1 DEG C that two air quantity, which adjust threshold value, and it is 2 DEG C that first air quantity, which adjusts threshold value,.
In one embodiment of the invention, third load adjustment submodule 335 is used for according to outlet air temperature difference T1 and goes out
Air temperature change rate 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 outlet air temperature difference and rate of temperature change, increase every time
Or certain load incrementss are reduced, so as to more be accurately determined the relationship of wind pushing temperature and reality output load.
Figure 13 is the schematic diagram that one embodiment of the invention apoplexy unit frequency adjusts module.As shown in Figure 13, Fig. 9 b or figure
Wind turbine frequency regulation block 6 in 10 embodiments may include evaporating temperature change rate determination unit 61 and the adjustment of wind turbine frequency
Unit 62, wherein：
Evaporating temperature change rate determination unit 61, for according to current evaporating temperature t1 and predetermined load regulating time
Evaporating temperature t1 before Δ t2(t-Δt2)Determine evaporating temperature change rate Δ t2.
Wherein, evaporating temperature change rate Δ t2=t1t-t1(t-Δt2)。
Wind turbine frequency adjustment unit 62, for according to target evaporating temperature t2, evaporating temperature change rate Δ t2 and current steaming
Hair temperature t1 is adjusted current wind turbine frequency f.
The above embodiment of the present invention proposes a kind of sub-load control device of constant evaporating temperature, to solve machine
The unstable problem of evaporating temperature in group operation at part load.The above embodiment of the present invention is adjusted by using load deviation
It adjusts, evaporating temperature can be stablized in reasonable range, and outlet air can be made with stabilized leaving air temp with air quantity difference
Temperature is within the scope of user's acceptable, soft to make unit operation more stablize at part load.
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
Wind turbine frequency adjustment unit 62 in example may include temperature judgment value determination sub-module 621,622 and of third judging submodule
First wind turbine frequency adjusts submodule 623, wherein：
Temperature judgment value determination sub-module 621, for the second predetermined period, according to target evaporating temperature t2, evaporating temperature
Spend change rate Δ t2 and current evaporating temperature t1 temperature judgment values t, wherein t=t1+ Δs t2-t2.
Third judging submodule 622, for judging whether temperature judgment value t is less than or equal to the first Load Regulation threshold value.
First wind turbine frequency adjusts submodule 623, for judging that temperature judgment value t is less than in third judging submodule 622
In the case of equal to the first Load Regulation threshold value, increase current wind turbine frequency f.
In one embodiment of the invention, the first wind turbine frequency adjustment submodule 623 is used for according to current evaporating temperature
T1 and evaporating temperature change rate Δ t2 determine wind turbine frequency variation Δ f；Current wind turbine frequency f is increased into the wind turbine frequency
Variation delta f.
The above embodiment of the present invention can determine that wind turbine frequency changes according to current evaporating temperature and evaporating temperature change rate
Amount, increases certain wind turbine frequency variation every time, negative with reality output so as to more be accurately determined evaporating temperature
Lotus, air-supply air quantity relationship.
In one embodiment of the invention, as shown in figure 14, the wind turbine frequency adjustment unit can also include the 4th
Judging submodule 624, the second wind turbine frequency adjustment submodule 625 and third wind turbine frequency adjust submodule 626, wherein：
4th judging submodule 624, for judging that temperature judgment value t is more than the first load in third judging submodule 622
In the case of adjusting threshold value, judge whether temperature judgment value t is less than or equal to the second Load Regulation threshold value, wherein the second load tune
It saves threshold value and is more than the first Load Regulation threshold value.
Second wind turbine frequency adjusts submodule 625, for being less than in the 4th judging submodule 624 judgement temperature judgment value t
In the case of equal to the second Load Regulation threshold value, keep current wind turbine frequency f constant.
Third wind turbine frequency adjusts submodule 626, for being more than in the 4th judging submodule 624 judgement temperature judgment value t
In the case of second Load Regulation threshold value, current wind turbine frequency f is reduced.
In one particular embodiment of the present invention, the second predetermined period described in Figure 14 embodiments be 8s, described first
Load Regulation threshold value is -2 DEG C, and the second Load Regulation threshold value is 2 DEG C.
The above embodiment of the present invention provides a kind of frequency conversion commercialization High cooling power cold wind unit air-conditioning part with variable air rate function
Point duty control method, can be by the temperature that determines target evaporating temperature, evaporating temperature change rate and current evaporating temperature
Judgment value is compared with two threshold values, to determine to increased or decrease wind turbine frequency, so as to more accurately realize to steaming
The stability contorting of temperature is sent out, and then controls wind pushing temperature, further increases stability of the unit in operation at part load.
In one embodiment of the invention, third wind turbine frequency adjustment submodule 626 is used for according to current evaporating temperature
T1 and evaporating temperature change rate Δ t2 determine wind turbine frequency variation Δ f；Current wind turbine frequency f is reduced into the wind turbine frequency
Variation delta f.
The above embodiment of the present invention can determine that wind turbine frequency changes according to current evaporating temperature and evaporating temperature change rate
Amount, increases or decreases certain wind turbine frequency variation every time, defeated so as to more be accurately determined evaporating temperature and reality
Go out load, air-supply air quantity relationship.
Figure 15 is the schematic diagram of air-conditioning part load control unit fourth embodiment of the present invention.As shown in figure 15, the sky
Sub-load control device is adjusted to may 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 realize the side described in any of the above-described embodiment when executing described program
Method step.
The above embodiment of the present invention can be adjusted by using load deviation and air quantity difference is adjusted, and evaporating temperature is steady
It is scheduled in reasonable range, stabilized leaving air temp, so that leaving air temp is within the scope of user's acceptable, to make machine
Group operation more stablizes, is soft at part load.The above embodiment of the present invention improves the usage experience of unit；It reduces
Because of the risk of the unstable initiation of temperature when operation at part load.
According to another aspect of the present invention, a kind of air-conditioning is provided, includes the air-conditioning part as described in above-mentioned any embodiment
Load control unit.
Based on the air-conditioning that the above embodiment of the present invention provides, is adjusted by using load deviation and air quantity difference is adjusted, it will
Evaporating temperature is stablized in reasonable range, and stabilized leaving air temp makes leaving air temp be in user's acceptable range
It is interior, to keep unit operation more stable, soft at part load.The above embodiment of the present invention improves the use of unit
Experience；Because of the risk of the unstable initiation of temperature when reducing operation at part load.
According to another aspect of the present invention, a kind of computer readable storage medium, the computer-readable storage medium are provided
Matter is stored with computer instruction, is realized such as above-mentioned air-conditioning part as described in an embodiment of taking up an official post when described instruction is executed by processor
Duty control method.
It, can be by using load deviation tune based on the computer readable storage medium that the above embodiment of the present invention provides
Section and air quantity difference are adjusted, and evaporating temperature are stablized in reasonable range, stabilized leaving air temp makes leaving air temp be in
Within the scope of user's acceptable, to keep unit operation more stable, soft at part load.The above-mentioned implementation of the present invention
Example 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 executing 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) either other programmable logic device, discrete gate or transistor logic, discrete hardware
Component or it is arbitrary appropriately combined.
So far, the present invention is described in detail.In order to avoid the design of the masking present invention, this field institute is not described
Some well known details.Those skilled in the art as described above, can be appreciated how to implement skill disclosed herein completely
Art scheme.
One of ordinary skill in the art will appreciate that realizing that all or part of step of above-described embodiment can pass through hardware
It completes, relevant hardware can also be instructed to complete by program, the program can be stored in a kind of computer-readable
In storage medium, storage medium mentioned above can be read-only memory, disk or CD etc..
Description of the invention provides for the sake of example and description, and is not exhaustively or by this to send out
It is bright to be limited to disclosed form.Many modifications and variations are obvious for the ordinary skill in the art.Selection and
Description embodiment is and to enable those skilled in the art to more preferably illustrate the principle of the present invention and practical application
Enough various embodiments with various modifications for understanding the present invention to design suitable for special-purpose.
Claims (23)
1. a kind of air-conditioning part duty control method, which is characterized in that including：
Receive target evaporating temperature input by user and setting suction superheat；
Current evaporating temperature is determined according to current leaving air temp and setting suction superheat；
Current wind turbine frequency is adjusted according to target evaporating temperature and current evaporating temperature.
2. according to the method described in claim 1, it is characterized in that, described according to target evaporating temperature and current evaporating temperature pair
Current wind turbine frequency be adjusted including：
Evaporating temperature change rate is determined according to the evaporating temperature before current evaporating temperature and predetermined load regulating time；
Current wind turbine frequency is adjusted according to target evaporating temperature, evaporating temperature change rate and current evaporating temperature.
3. according to the method described in claim 2, it is characterized in that, described according to target evaporating temperature, evaporating temperature change rate
With current evaporating temperature to current wind turbine frequency be adjusted including：
According to target evaporating temperature, evaporating temperature change rate and current evaporating temperature temperature judgment value；
Judge whether temperature judgment value is less than or equal to the first Load Regulation threshold value；
If temperature judgment value is less than or equal to the first Load Regulation threshold value, increase current wind turbine frequency.
4. according to the method described in claim 3, it is characterized in that, described according to target evaporating temperature, evaporating temperature change rate
Current wind turbine frequency is adjusted with current evaporating temperature and further includes：
If temperature judgment value is more than the first Load Regulation threshold value, judge whether temperature judgment value is less than or equal to the second Load Regulation
Threshold value, wherein the second Load Regulation threshold value is more than the first Load Regulation threshold value；
If temperature judgment value is less than or equal to the second Load Regulation threshold value, keep current wind turbine frequency constant；
If temperature judgment value is more than the second Load Regulation threshold value, current wind turbine frequency is reduced.
5. according to the method described in claim 4, it is characterized in that,
It is described to increase current wind turbine frequency and include：Determine that wind turbine frequency changes according to current evaporating temperature and evaporating temperature change rate
Amount；Current wind turbine frequency is increased into the wind turbine frequency variation；
And/or
It is described to reduce current wind turbine frequency and include：Determine that wind turbine frequency changes according to current evaporating temperature and evaporating temperature change rate
Amount；Current wind turbine frequency is reduced into the wind turbine frequency variation.
6. method according to any one of claims 1-5, which is characterized in that further include：
Receive target wind pushing temperature input by user；
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.
7. according to the method described in claim 6, it is characterized 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 change rate is determined according to the leaving air temp before current leaving air temp and predetermined wind amount regulating time；
Current unit load is adjusted according to the outlet air temperature difference and leaving air temp change rate.
8. the method according to the description of claim 7 is characterized in that it is described according to the outlet air temperature difference and leaving air temp change rate to working as
Preceding unit load be adjusted including：
Judge whether the sum of wind-warm syndrome difference and leaving air temp change rate are more than or equal to the first air quantity and adjust threshold value；
If the sum of the outlet air temperature difference and leaving air temp change rate, which are more than or equal to the first air quantity, adjusts threshold value, it is negative to increase current unit
Lotus.
9. according to the method described in claim 8, it is characterized in that, it is described according to the outlet air temperature difference and leaving air temp change rate to working as
Preceding unit load, which is adjusted, further includes：
If the sum of the outlet air temperature difference and leaving air temp change rate, which are less than the first air quantity, adjusts threshold value, judges wind-warm syndrome difference and go out wind-warm syndrome
It spends whether the sum of change rate is more than or equal to the second air quantity adjusting threshold value, is adjusted less than the first air quantity wherein the second air quantity adjusts threshold value
Threshold value；
If the sum of the outlet air temperature difference and leaving air temp change rate, which are more than or equal to the second air quantity, adjusts threshold value, current unit load is kept
It is constant；
If the sum of the outlet air temperature difference and leaving air temp change rate, which are less than the second air quantity, adjusts threshold value, current unit load is reduced.
10. according to the method described in claim 9, it is characterized in that,
It is described to increase current unit load and include：Load variations amount is determined according to the outlet air temperature difference and leaving air temp change rate；It will work as
Preceding unit load increases the load variations amount；
And/or
It is described to reduce current unit load and include：Load variations amount is determined according to the outlet air temperature difference and leaving air temp change rate；It will work as
Preceding unit load reduces the load variations amount.
11. a kind of air-conditioning part load control unit, which is characterized in that including：
Degree of superheat receiving module (4), for receiving target evaporating temperature input by user and setting suction superheat；
Evaporating temperature acquisition module (5), for determining current evaporating temperature according to current leaving air temp and setting suction superheat；
Wind turbine frequency regulation block (6), for being carried out to current wind turbine frequency according to target evaporating temperature and current evaporating temperature
Adjustment.
12. air-conditioning part according to claim 11 load control unit, which is characterized in that wind turbine frequency regulation block
(6) include：
Evaporating temperature change rate determination unit (61), for according to the steaming before current evaporating temperature and predetermined load regulating time
Hair temperature determines evaporating temperature change rate；
Wind turbine frequency adjustment unit (62), for according to target evaporating temperature, evaporating temperature change rate and current evaporating temperature pair
Current wind turbine frequency is adjusted.
13. air-conditioning part according to claim 12 load control unit, which is characterized in that wind turbine frequency adjustment unit
(62) include：
Temperature judgment value determination sub-module (621), for according to target evaporating temperature, evaporating temperature change rate and when front evaporator temperature
Spend temperature judgment value；
Third judging submodule (622), for judging whether temperature judgment value is less than or equal to the first Load Regulation threshold value；
First wind turbine frequency adjusts submodule (623), for judging that temperature judgment value is less than in third judging submodule (622)
In the case of the first Load Regulation threshold value, increase current wind turbine frequency.
14. air-conditioning part according to claim 13 load control unit, which is characterized in that the wind turbine frequency adjustment is single
First (62) further include：
4th judging submodule (624), for being more than the first load tune in third judging submodule (622) judgement temperature judgment value
In the case of saving threshold value, judge whether temperature judgment value is less than or equal to the second Load Regulation threshold value, wherein the second Load Regulation threshold
Value is more than the first Load Regulation threshold value；
Second wind turbine frequency adjusts submodule (625), for judging that temperature judgment value is less than in the 4th judging submodule (624)
In the case of the second Load Regulation threshold value, keep current wind turbine frequency constant；
Third wind turbine frequency adjusts submodule (626), for being more than the in the 4th judging submodule (624) judgement temperature judgment value
In the case of two Load Regulation threshold values, current wind turbine frequency is reduced.
15. air-conditioning part according to claim 14 load control unit, which is characterized in that
First wind turbine frequency adjustment submodule (623) is used to determine wind turbine frequency according to current evaporating temperature and evaporating temperature change rate
Rate variable quantity；Current wind turbine frequency is increased into the wind turbine frequency variation；
And/or
Third wind turbine frequency adjustment submodule (626) is used to determine wind turbine frequency according to current evaporating temperature and evaporating temperature change rate
Rate variable quantity；Current wind turbine frequency is reduced into the wind turbine frequency variation.
16. the air-conditioning part load control unit according to any one of claim 11-15, which is characterized in that further include：
Wind pushing temperature receiving module (1), for receiving target wind pushing temperature input by user；
Leaving air temp acquisition module (2), for obtaining current leaving air temp in real time；
Load adjustment module (3), for being adjusted to current unit load according to target wind pushing temperature and current leaving air temp.
17. air-conditioning part according to claim 16 load control unit, which is characterized in that load adjustment module (3) is wrapped
It includes：
Outlet air temperature difference determination unit (31), for determining that wind-warm syndrome is poor according to target wind pushing temperature and current leaving air temp；
Leaving air temp change rate determination unit (32), for according to going out before current leaving air temp and predetermined wind amount regulating time
Air temperature determines leaving air temp change rate；
Load adjustment unit (33), for being adjusted to current unit load according to the outlet air temperature difference and leaving air temp change rate.
18. air-conditioning part according to claim 17 load control unit, which is characterized in that load adjustment unit (33) wraps
It includes：
First judging submodule (331), for judging whether the sum of wind-warm syndrome difference and leaving air temp change rate are more than or equal to first
Air quantity adjusts threshold 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 the sum of rate is more than or equal to the first air quantity adjusting threshold value, increase current unit load.
19. air-conditioning part according to claim 18 load control unit, which is characterized in that load adjustment unit (33) is also
Including：
Second judgment submodule (333), for determining wind-warm syndrome difference and leaving air temp change rate in the first judging submodule (331)
The sum of be less than the first air quantity adjust threshold value in the case of, judge whether the sum of wind-warm syndrome difference and leaving air temp change rate are more than or equal to
Second air quantity adjusts threshold value, wherein the second air quantity, which adjusts threshold value, is less than the first air quantity adjusting threshold value；
Second load adjustment submodule (334), for determining wind-warm syndrome difference and leaving air temp change in second judgment submodule (333)
In the case that the sum of rate is more than or equal to the second air quantity adjusting threshold value, keep current unit load constant；
Third load adjustment submodule (335), for determining wind-warm syndrome difference and leaving air temp change in second judgment submodule (333)
In the case that the sum of rate is less than the second air quantity adjusting threshold value, current unit load is reduced.
20. air-conditioning part according to claim 19 load control unit, which is characterized in that
First load adjustment submodule (332) is used to determine load variations amount according to the outlet air temperature difference and leaving air temp change rate；It will
Current unit load increases the load variations amount；
And/or
Third load adjustment submodule (335) is used to determine load variations amount according to the outlet air temperature difference and leaving air temp change rate；It will
Current unit load reduces the load variations amount.
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), which is characterized in that described in the processor (152) executes
The method and step described in any one of claim 1-10 is realized when program.
22. a kind of air-conditioning, which is characterized in that include the air-conditioning part spatial load forecasting as described in any one of claim 11-21
Device.
23. a kind of computer readable storage medium, which is characterized in that the computer-readable recording medium storage has computer to refer to
It enables, the air-conditioning part duty control method as described in any one of claim 1-10 is realized when described instruction is executed by processor.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710580470.3A CN107218707A (en) | 2017-07-17 | 2017-07-17 | Air-conditioning and its air-conditioning part duty control method and device |
| CN2017105804703 | 2017-07-17 |
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| Publication Number | Publication Date |
|---|---|
| CN108278736A true CN108278736A (en) | 2018-07-13 |
| CN108278736B CN108278736B (en) | 2021-09-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710580470.3A Pending CN107218707A (en) | 2017-07-17 | 2017-07-17 | Air-conditioning and its air-conditioning part duty control method and device |
| CN201810114161.1A Pending CN108302722A (en) | 2017-07-17 | 2018-02-05 | Air-conditioning and its air-conditioning part duty control method and device |
| CN201810114162.6A Active CN108278736B (en) | 2017-07-17 | 2018-02-05 | Air conditioner and partial load control method and device thereof |
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| CN108302722A (en) * | 2017-07-17 | 2018-07-20 | 珠海格力电器股份有限公司 | Air-conditioning and its air-conditioning part duty control method and device |
| 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 |
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| CN109028484B (en) * | 2018-08-20 | 2020-06-16 | 珠海格力电器股份有限公司 | Method and device for adjusting temperature and air conditioning device |
| 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 |
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| 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 |
| 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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Also Published As
| Publication number | Publication date |
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| CN107218707A (en) | 2017-09-29 |
| CN108302722A (en) | 2018-07-20 |
| CN108278736B (en) | 2021-09-10 |
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