CN108444064A - Air-conditioning system and its control method - Google Patents
Air-conditioning system and its control method Download PDFInfo
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- CN108444064A CN108444064A CN201810354941.3A CN201810354941A CN108444064A CN 108444064 A CN108444064 A CN 108444064A CN 201810354941 A CN201810354941 A CN 201810354941A CN 108444064 A CN108444064 A CN 108444064A
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- outdoor unit
- wind turbine
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- unit wind
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
- F24F11/74—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity
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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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- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention discloses a kind of air-conditioning system and its control method, control method is for refrigeration mode and includes the following steps：Comparison air-conditioning output rating m and the first specified value G1 then makes outdoor unit wind turbine enter ordinary control mode as m≤G1；As m ＞ G1, then the size of wind side-line number n is judged, if n is in prescribed limit, outdoor unit wind turbine is then set to enter ordinary control mode, if not existing, then judge the current rotating speed of outdoor unit wind turbine whether in regulation gear, in this way, outdoor unit wind turbine is then set to enter ordinary control mode, it is such as no, outdoor unit wind turbine is then set to reduce or increase one grade, then air-conditioning output rating m and the first specified value G1 are compared again after running the first predetermined time T1, wherein, ordinary control mode is the system refrigerant pressure Pc sizes according to outdoor unit to control the rotating speed of outdoor unit wind turbine.Control method according to the ... of the embodiment of the present invention can be in optimum state always with the operation of outdoor unit wind turbine.
Description
Technical field
The present invention relates to air-conditioning system technical fields, more particularly, to a kind of air-conditioning system and its control method.
Background technology
With the improvement of people ' s living standards with the enhancing of awareness of saving energy, air-conditioning is energy saving with its, and control is flexible, is easy installation
With vast average family has been come into the features such as maintenance, and have been more and more widely used.In recent years, energy shortage, state's housekeeping
Plan also proposes higher and higher requirement to the energy saving of air-conditioning system, Effec-tive Function.However, in the related art, the control of air-conditioning system
Mode and control logic processed cannot make the air-conditioning system moment be in the state of Effec-tive Function, and the heat transfer efficiency of heat exchanger is caused to obtain not
It is played to effective, and then influences the actual motion effect of entire unit, efficient heat transfer technology needs further to be developed and utilized.
Invention content
The present invention is directed at least solve one of the technical problems existing in the prior art.For this purpose, the present invention proposes a kind of sky
The control method of the control method of adjusting system, the air-conditioning system can make the operation of outdoor unit wind turbine be in best shape always
State.
The invention also provides a kind of air-conditioning systems using above-mentioned control method.
The control method of air-conditioning system according to the ... of the embodiment of the present invention, the control method for refrigeration mode and include with
Lower step：Air-conditioning output rating m is compared with the first specified value G1 and is operated according to comparison result execution is corresponding, wherein
As m≤G1, then outdoor unit wind turbine is made to enter ordinary control mode；As m ＞ G1, then the size of wind side-line number n is sentenced
It is disconnected, if n in prescribed limit, makes the outdoor unit wind turbine enter the ordinary control mode, if n is not in the prescribed limit
It is interior, then the current rotating speed of the outdoor unit wind turbine is judged whether in regulation gear, if so, the outdoor unit wind turbine is then made to enter institute
Ordinary control mode is stated, if not, making the outdoor unit wind turbine reduce or increasing one grade, is then running the first predetermined time T1
Afterwards again according to air-conditioning output rating m operations corresponding with the comparison result execution of the first specified value G1, wherein described
Ordinary control mode is the system refrigerant pressure Pc sizes according to the outdoor unit to control the rotating speed of the outdoor unit wind turbine.
The control method of air-conditioning system according to the ... of the embodiment of the present invention may be implemented to automatically control the rotating speed of outdoor machine wind turbine
It adjusts, the operation of outdoor unit wind turbine is made to be in optimum state always, to improve the heat exchange efficiency and reliability of air-conditioning system, with
More energy-efficient mode is run, and improves the heat transfer effect of entire air-conditioning system.
In addition, the control method of air-conditioning system according to the above embodiment of the present invention can also have following additional technology
Feature：
The control method of air-conditioning system according to the ... of the embodiment of the present invention, the regulation gear include that regulation is high-grade and regulation is low
Shelves, wherein if the value of n be less than the prescribed limit minimum value, judge the outdoor unit wind turbine current rotating speed whether
It is low-grade for the regulation, if so, then making the outdoor unit wind turbine enter the ordinary control mode, if not, making the outdoor
The current rotating speed of machine wind turbine reduces by one grade, and again to the air-conditioning output rating m's after running the first predetermined time T1
Size judge and executes corresponding operation according to judging result, if the value of n is higher than the maximum value of the prescribed limit,
Judge whether the current rotating speed of the outdoor unit wind turbine is that the regulation is high-grade, if so, the outdoor unit wind turbine is then made to enter institute
Ordinary control mode is stated, if not, the current rotating speed of the outdoor unit wind turbine is made to increase one grade, and it is predetermined running described first
Again the size of the air-conditioning output rating m judge after time T1 and corresponding operation is executed according to judging result.
Further, it is deep low gear that the regulation is low-grade, and the high-grade regulation is most high-grade.
According to some embodiments of the present invention, the prescribed limit includes the first range [a, b] and the second range [c, d],
The air-conditioning system is provided with the second specified value G2, G1 ＜ G2, wherein as m >=G2, if n then makes the room in [a, b]
Outer machine wind turbine enters the ordinary control mode, if n then judges that the current rotating speed of the outdoor unit wind turbine is not in [a, b]
It is no in the regulation gear, if so, then make the outdoor unit wind turbine enter the ordinary control mode, if not, making the room
Outer machine wind turbine reduces or increases one grade, then again to the air-conditioning output rating m's after running the first predetermined time T1
Size judge and executes corresponding operation according to judging result；As G1 ＜ m ＜ G2, if n is interior at [c, d], then make described
Outdoor unit wind turbine enters the ordinary control mode, if n then judges the current rotating speed of the outdoor unit wind turbine not in [c, d]
Whether in the regulation gear, if so, then making the outdoor unit wind turbine enter the ordinary control mode, if not, making described
Outdoor unit wind turbine reduces or increases one grade, then again to the air-conditioning output rating m after running the first predetermined time T1
Size judge and corresponding operation executed according to judging result.
In some embodiments of the invention, the regulation gear includes that regulation is high-grade and regulation is low-grade, as m >=G2,
If n ＜ a, whether the rotating speed for detecting the outdoor unit wind turbine is that the regulation is low-grade, if so, then make the outdoor unit wind turbine into
Enter the ordinary control mode, if not, the rotating speed of the outdoor unit wind turbine is reduced by one grade, then runs described first in advance
It fixes time and again the size of the air-conditioning output rating m judge after T1 and corresponding operation is executed according to judging result, if n
＞ b then judge whether the current rotating speed of the outdoor unit wind turbine is that the regulation is high-grade, if so, then making the outdoor unit wind turbine
Into the ordinary control mode, if it is not, then making the current rotating speed of the outdoor unit wind turbine increase one grade, then described in operation
Again the size of the air-conditioning output rating m judge after first predetermined time T1 and corresponding behaviour is executed according to judging result
Make.
In some embodiments of the invention, the regulation gear includes that regulation is high-grade and regulation is low-grade, as G1 ＜ m ＜ G2
When, if n ＜ c, judge whether the rotating speed of the outdoor unit wind turbine is that the regulation is low-grade, if so, then making the outdoor unit wind
Machine enters the ordinary control mode, if it is not, the rotating speed of the outdoor unit wind turbine is then reduced by one grade, is then running described the
One predetermined time T1 to the size of the air-conditioning output rating m judge and is executed corresponding operation according to judging result again,
If n ＞ d, judge whether the current rotating speed of the outdoor unit wind turbine is that the regulation is high-grade, if so, then making the outdoor unit wind
Machine enters the ordinary control mode, if not, making the current rotating speed of the outdoor unit wind turbine increase one grade, then in operation institute
The size of the air-conditioning output rating m judge and executed according to judging result corresponding again after stating the first predetermined time T1
Operation.
Optionally, b ＞ a, d ＞ c, b ＞ d or b=d, a ＞ c or a=c, [a, b] ＞ [c, d] or [a, b]=[c, d].
According to some embodiments of the present invention, the value range of G1 is 20%-40%, and the value of G2 is 60%-80%.
Optionally, sensing chamber's external condenser outlet refrigerant pressure P1, outdoor condenser inlet refrigerant pressure P2 and compressor
One of in pressure at expulsion P3, outdoor environment temperature Th and outdoor condenser leaving air temp Tf, n=(Tf-Th)/(Tb1-
Th), n=(Tf-Th)/(Tb2-Th) or n=(Tf-Th)/(Tb3-Th), wherein Tb1, Tb2 and Tb3 are respectively the room
External condenser exports refrigerant pressure P1, the outdoor condenser inlet refrigerant pressure P2 and Compressor Discharge Pressure P3 institutes are right
The saturation temperature answered.
In some embodiments of the invention, when the air-conditioning system enters the refrigeration mode by control, the room
Outer machine wind turbine runs 20 ± 5 seconds according to the corresponding initial wind shelves of outdoor environment temperature Th, then again to the air-conditioning output rating m with
The first specified value G1 is compared and executes corresponding operation according to comparison result.
According to some embodiments of the present invention, 1min≤T1≤5min.
In some embodiments of the invention, the ordinary control mode includes the following steps：At interval of the second pre- timing
Between T2 the system refrigerant pressure Pc of the outdoor unit is compared with third specified value G3 and the 4th specified value G4 and root
Corresponding operation is executed according to comparison result, wherein Pc is outdoor condensator outlet refrigerant pressure P1, outdoor condenser inlet refrigerant
One of in pressure P2 and Compressor Discharge Pressure P3, if Pc >=G3, the outdoor unit wind turbine is set to increase one grade, if working as
When preceding rotating speed is most high-grade, then it is maintained at most high-grade；If Pc≤G4, the outdoor unit wind turbine is set to reduce by one grade, if working as forward
When speed is deep low gear, then deep low gear is maintained at；If G4 ＜ Pc ＜ G3, the outdoor unit wind turbine is made to keep current rotating speed.
Air-conditioning system according to the ... of the embodiment of the present invention uses the control method of air-conditioning system according to the ... of the embodiment of the present invention.
Further, the air-conditioning system includes air-conditioner set.
The additional aspect and advantage of the present invention will be set forth in part in the description, and will partly become from the following description
Obviously, or practice through the invention is recognized.
Description of the drawings
The above-mentioned and/or additional aspect and advantage of the present invention will become in the description from combination following accompanying drawings to embodiment
Obviously and it is readily appreciated that, wherein：
Fig. 1 is the flow diagram of control method according to an embodiment of the invention；
Fig. 2 is the flow diagram of control method in accordance with another embodiment of the present invention；
Fig. 3 is the flow diagram according to the control method of another embodiment of the invention；
Fig. 4 is the flow diagram according to the control method of further embodiment of the present invention；
Fig. 5 is the flow diagram of the ordinary control mode of control method according to the ... of the embodiment of the present invention；
Fig. 6 is the flow diagram of control method accord to a specific embodiment of that present invention.
Specific implementation mode
The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings.Below with reference to
The embodiment of attached drawing description is exemplary, it is intended to for explaining the present invention, and is not considered as limiting the invention, ability
The those of ordinary skill in domain can carry out a variety of changes to these embodiments without departing from the principle and spirit of the present invention
Change, change, replacing and modification, the scope of the present invention are limited by claim and its equivalent.
Below with reference to the accompanying drawings the control method of air-conditioning system according to the ... of the embodiment of the present invention is described.
Shown in referring to Fig.1, the control method of air-conditioning system according to the ... of the embodiment of the present invention can be used for refrigeration mode, and
Control method includes the following steps：
Step 101：Air-conditioning output rating m is compared with the first specified value G1, is then executed according to comparison result corresponding
Operation；
As m≤G1,102 are thened follow the steps：Outdoor unit wind turbine is set to enter ordinary control mode；
As m ＞ G1,103 are thened follow the steps：The size of wind side-line number n is judged, is then according to wind side-line number n
It is no that corresponding operation is executed in prescribed limit；
If n in prescribed limit, thens follow the steps 102：Outdoor unit wind turbine is set to enter ordinary control mode；
If n thens follow the steps 104 not in prescribed limit：Judge the current rotating speed of outdoor unit wind turbine whether in regulation shelves
Then position executes corresponding operation according to judging result；
If the current rotating speed of outdoor unit wind turbine is in regulation gear, 102 are thened follow the steps：Outdoor unit wind turbine is set to enter normal
Advise control model；
If the current rotating speed of outdoor unit wind turbine is not at regulation gear, 105 are thened follow the steps：Make outdoor unit wind turbine reduce or
One grade, after then running the first predetermined time T1 is increased, returns to step 101, and provide according to air-conditioning output rating m and first
The comparison result of value G1 executes corresponding operation.
It should be noted that in some embodiments of the invention, air-conditioning output rating m refers to air-conditioning system actual demand
The ratio of heat exchange amount and the specified heat exchange amount of air-conditioning system.In addition, ordinary control mode refers to according to outdoor machine system refrigerant pressure
Pc sizes control the rotating speed of outdoor unit wind turbine, so that outdoor machine system refrigerant pressure Pc is coordinated with rotating speed, outdoor unit fan operation
It is more stable efficient.
In the present invention, judge that outdoor unit wind turbine is to be directly entered ordinary control mode according to the size of air-conditioning output rating m,
Or enter back into ordinary control mode after rationalizing the rotating speed of outdoor unit wind turbine using wind side-line number n.In addition, wind side-line number n can
For judging air-conditioning system by air-cooled ability, in the Rotation Process for rationalizing outdoor unit wind turbine using wind side-line number n, root
It is reduced according to the size of wind side-line number n or the operational taps of raising outdoor unit wind turbine is to adjust rotating speed, make turning for outdoor unit wind turbine
Speed can more meet practical heat exchange amount demand, avoid the rotating speed of outdoor unit wind turbine excessively high and cause energy waste or outdoor unit
The rotating speed of wind turbine is too low and cannot be satisfied heat exchange amount demand.The operation of outdoor unit wind turbine is in optimum state always, to improve
The heat exchange efficiency and reliability of air-conditioning system, air-conditioning system can be run in a manner of more energy-efficient, can not only be improved
Comfort during user's use, and disclosure satisfy that energy development and the dual requirements of market development.
The control method of air-conditioning system according to the ... of the embodiment of the present invention is exported according to the key parameter air-conditioning of air-conditioning system
Rate m and wind side-line number n rationalizes the gear of outdoor unit wind turbine, and the rotational speed regulation for automatically controlling outdoor machine wind turbine may be implemented, make
The operation of outdoor unit wind turbine is in optimum state always, to improve the heat exchange efficiency and reliability of air-conditioning system, more to increase
It imitates energy-efficient mode to run, improves the heat transfer effect of entire air-conditioning system.
According to some embodiments of the present invention, as shown in Figure 2, it is specified that gear may include that regulation top grade and regulation are low-grade,
Control method includes the following steps：
Step 201：Air-conditioning output rating m is compared with the first specified value G1, is then executed according to comparison result corresponding
Operation；
As m≤G1,202 are thened follow the steps：Outdoor unit wind turbine is set to enter ordinary control mode；
As m ＞ G1,203 are thened follow the steps：The size of wind side-line number n is judged, is then held according to judging result
The corresponding operation of row；
If n in prescribed limit, thens follow the steps 202：Outdoor unit wind turbine is set to enter ordinary control mode；
If the value of n is less than the minimum value of prescribed limit, 204 are thened follow the steps：Judge the current rotating speed of outdoor unit wind turbine
Whether it is regulation low grade, corresponding operation is then executed according to judging result；
If the current rotating speed of outdoor unit wind turbine is regulation low grade, 202 are thened follow the steps：Outdoor unit wind turbine is set to enter routine
Control model；If the current rotating speed of outdoor unit wind turbine is not regulation low grade, 205 are thened follow the steps：Make working as outdoor unit wind turbine
Forward speed reduces by one grade, and after running the first predetermined time T1, returns to step 201：To the size of air-conditioning output rating m into
Row judges and executes corresponding operation according to judging result；
If the value of n is higher than the maximum value of prescribed limit, 206 are thened follow the steps：Judge the current rotating speed of outdoor unit wind turbine
Whether it is regulation top grade, corresponding operation is then executed according to judging result；
If the current rotating speed of outdoor unit wind turbine is regulation top grade, 202 are thened follow the steps：Outdoor unit wind turbine is set to enter routine
Control model；If the current rotating speed of outdoor unit wind turbine is regulation low grade, 207 are thened follow the steps：Make the current of outdoor unit wind turbine
Rotating speed increases one grade, and after running the first predetermined time T1, returns to step 201：The size of air-conditioning output rating m is carried out
Judge and corresponding operation is executed according to judging result.
Further, in the present invention, it is specified that low grade can be deep low gear, it is specified that top grade can be highest shelves, here, most
When low-grade, the rotating speed of outdoor unit wind turbine can be zero, can also be not zero, this is all within protection scope of the present invention.When n's
When value is less than the minimum value of prescribed limit, judge whether the current rotating speed of outdoor unit wind turbine is deep low gear, if not deep low gear
The current rotating speed of outdoor unit wind turbine is then set to reduce by one grade, and again to air-conditioning output rating m's after running the first predetermined time T1
Size judge and executes corresponding operation according to judging result.If judging in operating process again, the value of n is still below rule
Determine the minimum value of range, and the current rotating speed of outdoor unit wind turbine is not still deep low gear yet, then makes working as outdoor unit wind turbine again
Forward speed reduces by one grade.
When the value of n is higher than the maximum value of prescribed limit, then judge whether the current rotating speed of outdoor unit wind turbine is highest
Shelves, if not it is most high-grade, so that the current rotating speed of outdoor unit wind turbine is increased one grade, and after running the first predetermined time T1 again
The size of air-conditioning output rating m judge and corresponding operation is executed according to judging result.If judging in operating process again,
The value of n remains above the minimum value of prescribed limit, and the current rotating speed of outdoor unit wind turbine is not still most high-grade yet, then makes again
The current rotating speed of outdoor unit wind turbine increases one grade.
In some embodiments of the invention, as shown in figure 3, prescribed limit may include the first range [a, b] and second
Range [c, d], air-conditioning system can be provided with the second specified value G2, and G1 ＜ G2, control method may comprise steps of：
Step 301：Air-conditioning output rating m is compared with the first specified value G1, is then executed according to comparison result corresponding
Operation；
As m≤G1,302 are thened follow the steps：Outdoor unit wind turbine is set to enter ordinary control mode；
As m >=G2,303 are thened follow the steps：First logic judgment is carried out to the size of wind side-line number n, then according to wind
Whether side-line number n executes corresponding operation in the first range [a, b]；
If n thens follow the steps 302 in the first range [a, b]：Outdoor unit wind turbine is set to enter ordinary control mode；
If n in the first range [a, b], does not then follow the steps 304：Judge whether the current rotating speed of outdoor unit wind turbine is advising
Determine gear, corresponding operation is then executed according to judging result；
If the current rotating speed of outdoor unit wind turbine thens follow the steps 302 in regulation gear：Outdoor unit wind turbine is set to enter routine
Control model；If the current rotating speed of outdoor unit wind turbine in regulation gear, does not then follow the steps 305：Make the reduction of outdoor unit wind turbine
Or one grade is increased, then after running the first predetermined time T1, return to step 301：The size of air-conditioning output rating m is carried out
Judge and corresponding operation is executed according to judging result；
As G1 ＜ m ＜ G2,306 are thened follow the steps：Second logic judgment is carried out to the size of wind side-line number n, then root
Whether corresponding operation is executed in the second range [c, d] according to wind side-line number n；
If n thens follow the steps 302 in the second range [c, d]：Outdoor unit wind turbine is set to enter ordinary control mode；
If n in the second range [c, d], does not then follow the steps 307：Judge whether the current rotating speed of outdoor unit wind turbine is advising
Determine gear, corresponding operation is then executed according to judging result；
If the current rotating speed of outdoor unit wind turbine thens follow the steps 302 in regulation gear：Outdoor unit wind turbine is set to enter routine
Control model；If the current rotating speed of outdoor unit wind turbine in regulation gear, does not then follow the steps 308：Make the reduction of outdoor unit wind turbine
Or one grade is increased, then after running the first predetermined time T1, return to step 301：The size of air-conditioning output rating m is carried out
Judge and corresponding operation is executed according to judging result.
According to further embodiment of the present invention, as shown in Figure 4, it is specified that gear may include regulation top grade and provide low
Shelves, control method may comprise steps of：
Step 401：Air-conditioning output rating m is compared with the first specified value G1, is then executed according to comparison result corresponding
Operation；
As m≤G1,402 are thened follow the steps：Outdoor unit wind turbine is set to enter ordinary control mode；
As m >=G2,403 are thened follow the steps：First logic judgment is carried out to the size of wind side-line number n, then according to wind
Whether side-line number n executes corresponding operation in the first range [a, b]；
If n thens follow the steps 402 in the first range [a, b]：Outdoor unit wind turbine is set to enter ordinary control mode；
If n ＜ a, then follow the steps 404：Judge whether the current rotating speed of outdoor unit wind turbine is low-grade in regulation, then basis
Judging result executes corresponding operation；
If the current rotating speed of outdoor unit wind turbine is low-grade in regulation, 402 are thened follow the steps：Outdoor unit wind turbine is set to enter routine
Control model；If the current rotating speed of outdoor unit wind turbine is not low-grade in regulation, 405 are thened follow the steps：Make the reduction of outdoor unit wind turbine
One grade, then after running the first predetermined time T1, return to step 401：The size of air-conditioning output rating m is judged simultaneously
Corresponding operation is executed according to judging result；
If n ＞ b, then follow the steps 406：Judge whether the current rotating speed of outdoor unit wind turbine is regulation top grade, then basis
Judging result executes corresponding operation；
If the current rotating speed of outdoor unit wind turbine is high-grade in regulation, 402 are thened follow the steps：Outdoor unit wind turbine is set to enter routine
Control model；If the current rotating speed of outdoor unit wind turbine is not high-grade in regulation, 407 are thened follow the steps：Outdoor unit wind turbine is set to increase
One grade, then after running the first predetermined time T1, return to step 401：The size of air-conditioning output rating m is judged simultaneously
Corresponding operation is executed according to judging result；
As G1 ＜ m ＜ G2,408 are thened follow the steps：Second logic judgment is carried out to the size of wind side-line number n, then root
Whether corresponding operation is executed in the second range [c, d] according to wind side-line number n；
If n thens follow the steps 402 in the second range [c, d]：Outdoor unit wind turbine is set to enter ordinary control mode；
If n ＜ c, then follow the steps 409：Judge whether the rotating speed of outdoor unit wind turbine is regulation low grade, then according to judgement
As a result corresponding operation is executed；
If the rotating speed of outdoor unit wind turbine is low-grade in regulation, 402 are thened follow the steps：Outdoor unit wind turbine is set to enter conventional control
Pattern；If the current rotating speed of outdoor unit wind turbine is not low-grade in regulation, 410 are thened follow the steps：Outdoor unit wind turbine is set to reduce by one grade,
Then after running the first predetermined time T1,401 are returned to step：Judge simultaneously basis to the size of air-conditioning output rating m
Judging result executes corresponding operation；
If n ＞ d, then follow the steps 411：Judge whether the current rotating speed of outdoor unit wind turbine is regulation top grade, then basis
Judging result executes corresponding operation；
If the current rotating speed of outdoor unit wind turbine is high-grade in regulation, 402 are thened follow the steps：Outdoor unit wind turbine is set to enter routine
Control model；If the current rotating speed of outdoor unit wind turbine is not high-grade in regulation, 412 are thened follow the steps：Outdoor unit wind turbine is set to increase
One grade, then after running the first predetermined time T1, return to step 401：The size of air-conditioning output rating m is judged simultaneously
Corresponding operation is executed according to judging result.
It should be noted that in the embodiment that prescribed limit includes the first range [a, b] and the second range [c, d], it is empty
Adjust output rating m bigger, required heat exchange amount is higher, and corresponding wind side-line number n is also bigger, and therefore, when m >=G2 judges wind side-line number n
The maximum value of the first range [a, b] of size judges the second range [c, d] of wind side-line number n sizes when being not less than G1 ＜ m ＜ G2
Maximum value, that is to say, that b >=d.For example, in some specific embodiments of the present invention, b ＞ a, d ＞ c, [a, b] ＞ [c, d]
Or [a, b]=[c, d], here, when [a, b] ＞ [c, d], b ＞ d >=a ＞ c either b=d ＞ a ＞ c or b ＞ d ＞ a=
When c b ＞ a ＞ d ＞ c, [a, b]=[c, d], b=d ＞ a=c.
In addition, in the present invention, the value range of G1 is 20%-40%, and the value of G2 is 60%-80%, G1 and G2
Specific value can be flexibly arranged according to the concrete condition of air-conditioning, for example, G1 can be 20%, 25%, 30%, 35% and 40%
Can be 60%, 65%, 70%, 75% and 80% etc. Deng, G2, it is only necessary to meet the requirement of G1 ＜ G2.
According to some embodiments of the present invention, the control method of air-conditioning system can export refrigerant pressure with sensing chamber's external condenser
One of in power P1, outdoor condenser inlet refrigerant pressure P2 and Compressor Discharge Pressure P3, outdoor environment temperature Th and
The calculation formula of outdoor condenser leaving air temp Tf, wind side-line number n can be：
N=(Tf-Th)/(Tb1-Th), n=(Tf-Th)/(Tb2-Th) or n=(Tf-Th)/(Tb3-Th)
Wherein, Tb1, Tb2 and Tb3 are respectively outdoor condensator outlet refrigerant pressure P1, outdoor condenser inlet refrigerant pressure
Saturation temperature corresponding to power P2 and Compressor Discharge Pressure P3.According to the control of the air-conditioning system of particular embodiments of the invention
Method processed can detect one of P1, P2 and P3 and Th, Tf constantly, and calculate outlet air side-line number n, Jin Erke automatically
To control the rotating speed of outdoor unit wind turbine according to the size of wind side-line number n.
In some embodiments of the invention, when air-conditioning system enters refrigeration mode by control, outdoor unit wind turbine can be with
First according to the outdoor environment temperature Th corresponding initial wind shelves operating provisions times, such as 20 ± 5 can be run with initial wind shelves
Second, keep air-conditioning system stable, then air-conditioning output rating m is compared and with the first specified value G1 according to comparison result again
Execute corresponding operation.
It is understood that if outdoor unit wind turbine reduces or increases the first predetermined time T1 mistake run after gear
Short, being unfavorable for the stable and parameter detecting of outdoor unit wind turbine excessively can frequently cause energy waste, and T1 is long and can reduce
The high efficiency of air-conditioning system operation, therefore, in the present invention, 1min≤T1≤5min.For example, some in the present invention are specific real
It applies in example, T1 can be respectively 1.5min, 2min, 2.5min, 3min, 3.5min, 4min and 4.5min etc..
According to some embodiments of the present invention, as shown in figure 5, ordinary control mode is the system refrigerant pressure according to outdoor unit
The rotating speed of the size control outdoor unit wind turbine of power Pc, wherein system refrigerant pressure Pc can be outdoor condensator outlet refrigerant pressure
One of in power P1, outdoor condenser inlet refrigerant pressure P2 and Compressor Discharge Pressure P3.Specifically, conventional control mould
Formula includes the following steps：
Step 501：Outdoor machine system refrigerant pressure Pc is compared simultaneously with third specified value G3 and the 4th specified value G4
Corresponding operation is executed according to comparison result；
If Pc >=G3 thens follow the steps 502：Outdoor unit wind turbine is set to increase one grade, after then running the second predetermined time T2,
Return to step 501：It is executed according to the comparison result of system refrigerant pressure Pc and third specified value G3 and the 4th specified value G4
Corresponding operation；
If Pc≤G4 thens follow the steps 503：Outdoor unit wind turbine is set to reduce by one grade, after then running the second predetermined time T2,
Return to step 501：It is executed according to the comparison result of system refrigerant pressure Pc and third specified value G3 and the 4th specified value G4
Corresponding operation；
If G4 ＜ Pc ＜ G3, then follow the steps 504：So that outdoor unit wind turbine is kept current rotating speed, it is predetermined then to run second
After time T2,501 are returned to step：According to the comparison of system refrigerant pressure Pc and third specified value G3 and the 4th specified value G4
As a result corresponding operation is executed.
It should be noted that as Pc >=G3, if the current rotating speed of outdoor unit wind turbine is most high-grade, gear no longer rises
Height is maintained at most high-grade；As Pc≤G4, if the current rotating speed of outdoor unit wind turbine is deep low gear, gear no longer reduces, and keeps
In deep low gear.
Outdoor unit fan operation can be made unstable and detected excessively frequently to cause energy in addition, the second predetermined time T2 is too short
Source wastes, and the second predetermined time T2 is long, can not ensure that outdoor unit wind turbine adjusts rotating speed to remain operational efficiently in time.Therefore,
In the present invention, 5 seconds≤T2≤20 second.For example, some specific embodiments according to the present invention, the second predetermined time T2 can divide
It Wei not be 7 seconds, 10 seconds, 15 seconds and 18 seconds etc..
Air-conditioning system according to the ... of the embodiment of the present invention uses the control method of air-conditioning system according to the ... of the embodiment of the present invention.By
There is above-mentioned beneficial technique effect in the control method of air-conditioning system according to the ... of the embodiment of the present invention, therefore according to of the invention real
The air-conditioning system for applying example may be implemented to automatically control the rotational speed regulation of outdoor machine wind turbine, and the operation of outdoor unit wind turbine is made to be in always
Optimum state is run to improve the heat exchange efficiency and reliability of air-conditioning system in a manner of more energy-efficient, is improved entire
The heat transfer effect of air-conditioning system.
Further, air-conditioning system may include air-conditioner set.
Still further, air-conditioner set may include indoor unit and outdoor unit, outdoor unit may include outdoor environment temperature
Sensor, outdoor condenser, outdoor condenser leaving air temp sensor, outdoor condenser refrigerant pressure sensor, compressor with
And compressor discharge pressure sensor, air-conditioning system can also include control unit.
Wherein, control unit can control outdoor environment temperature sensor moment detection outdoor environment temperature Th, and outdoor is cold
Condenser leaving air temp sensor moment sensing chamber's external condenser leaving air temp Tf, outdoor condenser refrigerant pressure sensor moment inspection
Outdoor condensator outlet refrigerant pressure P1 or outdoor condenser inlet refrigerant pressure P2 is surveyed, when compressor discharge pressure sensor
Detection Compressor Discharge Pressure P3 is carved, and control unit can execute the controlling party of air-conditioning system according to the ... of the embodiment of the present invention
Method to the size of air-conditioning output rating m judge and calculates wind side-line number n etc. according to detection data in real time.
Below with reference to the accompanying drawings the control method of the air-conditioning system of a specific embodiment according to the present invention is described in detail, is worth
It must understand, only exemplary illustration described below, and should not be understood as the limitation to invention.
As shown in fig. 6, after air-conditioning system is connected to power-on command, control unit first determines whether power on mode, if it is system
Cold mode operation, then outdoor unit wind turbine was according to the corresponding initial wind shelves operations of outdoor environment temperature Th 20 seconds.Control unit is then real
When detection outdoor environment temperature Th, outdoor condensator outlet refrigerant pressure P1 and outdoor condenser leaving air temp Tf, and count automatically
Calculate the corresponding saturation temperature Tb1 of P1.
Control unit can in real time judge air-conditioning output rating m, wherein the heat exchange of m=air-conditioning system actual demands
The specified heat exchange amount of amount/air-conditioning system.
It is automatic to calculate wind side-line number n and carry out the first logic judgment if m >=70%.It is calculated automatically by control unit
Wind side-line number n, wherein n=(outdoor condenser leaving air temp-outdoor environment temperature)/(outdoor condensator outlet refrigerant pressure pair
Saturation temperature-the outdoor environment temperature answered), i.e. n=(Tf-Th)/(Tb1-Th).
Further, whether judge wind side-line number n at the first range [a, b], if so, then outdoor unit wind turbine enters routine
Control model regulation stall.
If wind side-line number n not at the first range [a, b], then further judges whether n ＜ a are true, if so, then further
Judge whether the current rotating speed of outdoor unit wind turbine is deep low gear, if deep low gear, then outdoor unit wind turbine enters ordinary control mode
Regulation stall, if not deep low gear, then wind shelves are in one grade of current gear reduction, then again according to real-time after running two minutes
The air-conditioning output rating m of detection judges the size of air-conditioning output rating m.
If n ＜ a are invalid, further judge whether n ＞ b are true, if so, then further judge outdoor unit wind turbine
Whether current rotating speed is most high-grade, if most high-grade, then outdoor unit wind turbine enters ordinary control mode regulation stall, if not most
Top grade, then wind shelves are in one grade of current gear raising, then again according to the air-conditioning output rating m detected in real time after running two minutes
The size of air-conditioning output rating m is judged.
If n ＞ b are invalid, return again according to the air-conditioning output rating m that detects in real time to the size of air-conditioning output rating m into
Row judges.
It is automatic to calculate wind side-line number n and carry out the second logic judgment if 30% ＜ m ＜ 70%.
Further, whether judge wind side-line number n at the second range [c, d], if so, then outdoor unit wind turbine enters routine
Control model regulation stall.
If wind side-line number n not at the second range [c, d], then further judges whether n ＜ c are true, if so, then further
Judge whether the current rotating speed of outdoor unit wind turbine is deep low gear, if deep low gear, then outdoor unit wind turbine enters ordinary control mode
Regulation stall, if not deep low gear, then wind shelves are in one grade of current gear reduction, then again according to real-time after running two minutes
The air-conditioning output rating m of detection judges the size of air-conditioning output rating m.
If n ＜ c are invalid, further judge whether n ＞ d are true, if so, then further judge outdoor unit wind turbine
Whether current rotating speed is most high-grade, if most high-grade, then outdoor unit wind turbine enters ordinary control mode regulation stall, if not most
Top grade, then wind shelves are in one grade of current gear raising, then again according to the air-conditioning output rating m detected in real time after running two minutes
The size of air-conditioning output rating m is judged.
If n ＞ b are invalid, return again according to the air-conditioning output rating m that detects in real time to the size of air-conditioning output rating m into
Row judges.
Wherein, b ＞ a, d ＞ c, b ＞ d or b=d, a ＞ c or a=c, [a, b] ＞ [c, d] or [a, b]=[c, d].
If m≤30%, outdoor unit wind turbine does not control gear further according to wind side-line number, is directly entered ordinary control mode fortune
Row.
Other of air-conditioning system and control method according to the ... of the embodiment of the present invention are constituted and are operated for the general of this field
It is known for logical technical staff, is not described in detail herein.
In the description of this specification, the description of reference term " embodiment ", " specific embodiment ", " example " etc. means to tie
Specific features, process or the feature for closing the embodiment or example description are contained at least one embodiment of the present invention or example
In.In the present specification, schematic expression of the above terms may not refer to the same embodiment or example.Moreover, retouching
Specific features, process or the feature stated can in any one or more of the embodiments or examples do not interfere, not contradiction
In the case of can be combined with each other in an appropriate manner.
Claims (14)
1. a kind of control method of air-conditioning system, which is characterized in that the control method is for refrigeration mode and includes following step
Suddenly：
Air-conditioning output rating m is compared with the first specified value G1 and is operated according to comparison result execution is corresponding, wherein
As m≤G1, then outdoor unit wind turbine is made to enter ordinary control mode；
As m ＞ G1, then the size of wind side-line number n is judged, if n in prescribed limit, makes the outdoor unit wind turbine
Into the ordinary control mode, if n not in the prescribed limit, judge the outdoor unit wind turbine current rotating speed whether
In regulation gear, if so, then making the outdoor unit wind turbine enter the ordinary control mode, if not, making the outdoor unit wind
Machine reduces or increases one grade, then again according to the air-conditioning output rating m and described first after running the first predetermined time T1
The comparison result of specified value G1 executes corresponding operation, wherein the ordinary control mode is the system refrigerant according to outdoor unit
Pressure Pc sizes control the rotating speed of the outdoor unit wind turbine.
2. the control method of air-conditioning system according to claim 1, which is characterized in that the regulation gear includes that regulation is high
Shelves and regulation are low-grade, wherein
If the value of n is less than the minimum value of the prescribed limit, judge whether the current rotating speed of the outdoor unit wind turbine is institute
Regulation low grade is stated, if so, then making the outdoor unit wind turbine enter the ordinary control mode, if not, making the outdoor unit wind
The current rotating speed of machine reduces by one grade, and again to the size of the air-conditioning output rating m after running the first predetermined time T1
Judge and corresponding operation executed according to judging result,
If the value of n is higher than the maximum value of the prescribed limit, judge whether the current rotating speed of the outdoor unit wind turbine is institute
Regulation top grade is stated, if so, then making the outdoor unit wind turbine enter the ordinary control mode, if not, making the outdoor unit wind
The current rotating speed of machine increases one grade, and again to the size of the air-conditioning output rating m after running the first predetermined time T1
Judge and corresponding operation is executed according to judging result.
3. the control method of air-conditioning system according to claim 2, which is characterized in that the low-grade regulation is deep low gear,
The high-grade regulation is most high-grade.
4. the control method of air-conditioning system according to claim 1, which is characterized in that the prescribed limit includes the first model
[a, b] and the second range [c, d] are enclosed, the air-conditioning system is provided with the second specified value G2, G1 ＜ G2, wherein
As m >=G2, if n in [a, b], then makes the outdoor unit wind turbine enter the ordinary control mode, if n not [a,
B] in, then the current rotating speed of the outdoor unit wind turbine is judged whether in the regulation gear, if so, then making the outdoor unit wind turbine
Into the ordinary control mode, if not, making the outdoor unit wind turbine reduce or increasing one grade, then in operation described first
Again the size of the air-conditioning output rating m judge after predetermined time T1 and corresponding operation is executed according to judging result；
As G1 ＜ m ＜ G2, if n in [c, d], then makes the outdoor unit wind turbine enter the ordinary control mode, if n does not exist
In [c, d], then the current rotating speed of the outdoor unit wind turbine is judged whether in the regulation gear, if so, then making the outdoor unit
Wind turbine enters the ordinary control mode, if not, making the outdoor unit wind turbine reduce or increasing one grade, then described in operation
Again the size of the air-conditioning output rating m judge after first predetermined time T1 and corresponding behaviour is executed according to judging result
Make.
5. the control method of air-conditioning system according to claim 4, which is characterized in that the regulation gear includes that regulation is high
Shelves and regulation are low-grade, as m >=G2,
If n ＜ a, whether the rotating speed for detecting the outdoor unit wind turbine is that the regulation is low-grade, if so, then making the outdoor unit wind
Machine enters the ordinary control mode, if not, the rotating speed of the outdoor unit wind turbine is reduced by one grade, is then running described the
Again the size of the air-conditioning output rating m judge after one predetermined time T1 and corresponding behaviour is executed according to judging result
Make,
If n ＞ b, judge whether the current rotating speed of the outdoor unit wind turbine is that the regulation is high-grade, if so, then making the outdoor
Machine wind turbine enters the ordinary control mode, if it is not, the current rotating speed of the outdoor unit wind turbine is then made to increase one grade, is then transporting
Again the size of the air-conditioning output rating m judge after row the first predetermined time T1 and phase is executed according to judging result
The operation answered.
6. the control method of air-conditioning system according to claim 4, which is characterized in that the regulation gear includes that regulation is high
Shelves and regulation are low-grade, as G1 ＜ m ＜ G2,
If n ＜ c, judge whether the rotating speed of the outdoor unit wind turbine is that the regulation is low-grade, if so, then making the outdoor unit wind
Machine enters the ordinary control mode, if it is not, the rotating speed of the outdoor unit wind turbine is then reduced by one grade, is then running described the
One predetermined time T1 to the size of the air-conditioning output rating m judge and is executed corresponding operation according to judging result again,
If n ＞ d, judge whether the current rotating speed of the outdoor unit wind turbine is that the regulation is high-grade, if so, then making the outdoor
Machine wind turbine enters the ordinary control mode, if not, the current rotating speed of the outdoor unit wind turbine is made to increase one grade, is then transporting
Again the size of the air-conditioning output rating m judge after row the first predetermined time T1 and phase is executed according to judging result
The operation answered.
7. the control method of the air-conditioning system according to any one of claim 4-6, which is characterized in that b ＞ a, d ＞ c, b
＞ d or b=d, a ＞ c or a=c, [a, b] ＞ [c, d] or [a, b]=[c, d].
8. the control method of the air-conditioning system according to any one of claim 4-6, which is characterized in that the value range of G1
Value for 20%-40%, G2 is 60%-80%.
9. the control method of air-conditioning system according to claim 1, which is characterized in that sensing chamber's external condenser exports refrigerant
One of in pressure P1, outdoor condenser inlet refrigerant pressure P2 and Compressor Discharge Pressure P3, outdoor environment temperature Th
With outdoor condenser leaving air temp Tf, n=(Tf-Th)/(Tb1-Th), n=(Tf-Th)/(Tb2-Th) or n=(Tf-Th)/
(Tb3-Th), wherein Tb1, Tb2 and Tb3 are respectively that the outdoor condensator outlet refrigerant pressure P1, the outdoor condenser enter
Saturation temperature corresponding to the mouth refrigerant pressure P2 and Compressor Discharge Pressure P3.
10. the control method of air-conditioning system according to claim 1, which is characterized in that when the air-conditioning system is controlled
When into the refrigeration mode, the outdoor unit wind turbine is run 20 ± 5 seconds according to the corresponding initial wind shelves of outdoor environment temperature Th,
Then the air-conditioning output rating m is compared again with the first specified value G1 and is grasped according to comparison result execution is corresponding
Make.
11. the control method of air-conditioning system according to claim 1, which is characterized in that 1min≤T1≤5min.
12. the control method of air-conditioning system according to claim 1, which is characterized in that the ordinary control mode includes
Following steps：
At interval of the second predetermined time T2 to the system refrigerant pressure Pc and third specified value G3 and the 4th of the outdoor unit
Specified value G4 is compared and executes corresponding operation according to comparison result, wherein Pc is outdoor condensator outlet refrigerant pressure
One of in P1, outdoor condenser inlet refrigerant pressure P2 and Compressor Discharge Pressure P3,
If Pc >=G3, the outdoor unit wind turbine is made to increase one grade, if current rotating speed is most high-grade, is maintained at most high-grade；
If Pc≤G4, the outdoor unit wind turbine is made to reduce by one grade, if current rotating speed is deep low gear, is maintained at deep low gear；
If G4 ＜ Pc ＜ G3, the outdoor unit wind turbine is made to keep current rotating speed.
13. a kind of air-conditioning system, which is characterized in that using the control of the air-conditioning system according to any one of claim 1-12
Method processed.
14. air-conditioning system according to claim 13, which is characterized in that the air-conditioning system includes air-conditioner set.
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| WO2021223404A1 (en) * | 2020-10-15 | 2021-11-11 | 青岛海尔空调器有限总公司 | Method and apparatus for adjusting air conditioner, and electronic device and computer storage medium |
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