CN106352484A - Multi-split air conditioner and refrigeration control method thereof - Google Patents
Multi-split air conditioner and refrigeration control method thereof Download PDFInfo
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- CN106352484A CN106352484A CN201610801327.8A CN201610801327A CN106352484A CN 106352484 A CN106352484 A CN 106352484A CN 201610801327 A CN201610801327 A CN 201610801327A CN 106352484 A CN106352484 A CN 106352484A
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- indoor set
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/20—Humidity
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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
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B49/00—Arrangement or mounting of control or safety devices
- F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
- F25B49/022—Compressor control arrangements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/65—Electronic processing for selecting an operating mode
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2600/00—Control issues
- F25B2600/02—Compressor control
- F25B2600/021—Inverters therefor
Abstract
The invention discloses a refrigeration control method of a multi-split air conditioner. The method includes the steps that in the operation process of the air conditioner, capability demand values of indoor units, in a running state, of the air conditioner are acquired; set temperatures of the indoor units and the current indoor environment temperature are acquired; the accumulated value of the capability demand values of the indoor units is corrected according to the set temperatures of the indoor units and the current indoor environment temperature, and a corrected value is obtained; the operation frequency of a compressor is correspondingly adjusted according to the corrected value. The invention further discloses the multi-split air conditioner. The refrigeration demand of an indoor room is met, and meanwhile the frequency of the compressor is accurately controlled; besides, the air conditioner is good in energy efficiency.
Description
Technical field
The present invention relates to field of air conditioning, drag many air-conditionings and its refrigeration control method particularly to a kind of one.
Background technology
Currently, frequency conversion multi-split air conditioner also encounters various technical barriers in progressively extension process.One drags many air-conditionings
In device running, obtain design temperature and the indoor environment temperature of indoor set, and the design temperature according to indoor set and interior
The temperature difference of ambient temperature, controls the frequency of compressor.But this control program cannot meet the refrigeration demand of each indoor room, and
And the FREQUENCY CONTROL of this compressor does not consider the refrigerating capacity of indoor set, thus the FREQUENCY CONTROL of compressor is not accurate enough.
Content of the invention
The main object of the present invention is to propose a kind of one to drag many air-conditionings and its refrigeration control method it is intended to make to meet interior
While the refrigeration demand in room, control compressor frequency exactly.
For achieving the above object, proposed by the present invention a kind of one drag the refrigeration control method of many air-conditionings, comprise the following steps:
During operation of air conditioner, obtain the ability need value of the indoor apparatus of air conditioner being in running status；
Obtain design temperature and the current indoor ambient temperature of indoor set；
The accumulated value of the design temperature according to the indoor set and current indoor ambient temperature ability need value to each indoor set
It is modified, obtain correction value；
According to described correction value, the running frequency of compressor is adjusted correspondingly.
Preferably, the described design temperature according to the indoor set and current indoor ambient temperature ability need to each indoor set
The accumulated value of value is modified, and the step obtaining correction value includes:
Design temperature according to described indoor set and the difference of current indoor ambient temperature, determine ability need coefficient k 1；
Acquisition capability correction factor k2；
The ability need value of each indoor set is added up, obtains cumulative ability need value；
Calculate the product of described cumulative ability need value, ability need coefficient k 1 and capacity correction coefficient k 2, obtain and revise
Value.
Preferably, the step of the described design temperature obtaining indoor set includes:
According to air conditioning operating mode, obtain the corresponding design temperature of indoor set.
Preferably, when described air conditioning operating mode is comfort mode, the corresponding design temperature of described indoor set is according to place
Design temperature after the quantity temperature of the indoor apparatus of air conditioner of running status compensates and corrects.
Preferably, described temperature compensation value is corresponding with the quantity of the indoor apparatus of air conditioner being in running status, and quantity is more,
Temperature compensation value is higher.
Preferably, when described air conditioning operating mode is atomizing refrigerating pattern, the corresponding design temperature of described indoor set is root
Obtain design temperature according to the corresponding dew point temperature of indoor set.
Additionally, for achieving the above object, the embodiment of the present invention additionally provides a kind of one and drags many air-conditionings, including off-premises station and extremely
Few two indoor sets are it is characterised in that also including the controller of control indoor set and off-premises station and being disposed in the interior on machine
Temperature sensor；Described temperature sensor is used for obtaining the current indoor ambient temperature of indoor set；Described controller is used for:
Obtain the ability need value of the indoor apparatus of air conditioner being in running status；
The accumulated value of the design temperature according to the indoor set and current indoor ambient temperature ability need value to each indoor set
It is modified, obtain correction value；
According to described correction value, the running frequency of the compressor of off-premises station is adjusted correspondingly.
Preferably, described controller is additionally operable to:
Design temperature according to described indoor set and the difference of current indoor ambient temperature, determine ability need coefficient k 1；
Acquisition capability correction factor k2；
The ability need value of each indoor set is added up, obtains cumulative ability need value；
Calculate the product of described cumulative ability need value, ability need coefficient k 1 and capacity correction coefficient k 2, obtain and revise
Value.
Preferably, described controller is additionally operable to: according to air conditioning operating mode, obtains the corresponding design temperature of indoor set.
Preferably, described controller is used for: when air conditioning operating mode is comfort mode, according to the air-conditioning being in running status
The quantity temperature of indoor set compensates and corrects, and obtains design temperature.
Preferably, described indoor set is additionally provided with humidity sensor, for obtaining the indoor environment humidity of indoor set；Described
Controller is additionally operable to: when described air conditioning operating mode is atomizing refrigerating pattern, according to indoor environment humidity, obtains indoor set and corresponds to
Dew point temperature, and according to described dew point temperature, obtain design temperature.
Technical solution of the present invention is compressed the control of unit frequency according to the ability need of indoor set, simultaneously also by interior
Design temperature is modified with current indoor ambient temperature, so that while meeting the refrigeration demand of indoor room, accurately
Ground controls compressor frequency, and air-conditioning efficiency is preferable.
Brief description
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
Have technology description in required use accompanying drawing be briefly described it should be apparent that, drawings in the following description be only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, acceptable
Structure according to these accompanying drawings obtains other accompanying drawings.
Fig. 1 drags the structural representation of refrigeration control method one embodiment of many air-conditionings for the present invention one；
The refinement flow process that Fig. 2 drags the correction value of capacitation demand in the refrigeration control method of many air-conditionings for the present invention one is shown
It is intended to；
Fig. 3 drags the structural representation of many air-conditionings for the present invention one.
The realization of the object of the invention, functional characteristics and advantage will be described further in conjunction with the embodiments referring to the drawings.
Specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation description is it is clear that described embodiment is only a part of embodiment of the present invention, rather than whole embodiments.Base
Embodiment in the present invention, those of ordinary skill in the art obtained under the premise of not making creative work all its
His embodiment, broadly falls into the scope of protection of the invention.
If it is to be appreciated that relating to directivity instruction (such as up, down, left, right, before and after ...) in the embodiment of the present invention,
Then directionality instruction be only used for explain under a certain particular pose (as shown in drawings) relative position relation between each part,
Motion conditions etc., if this particular pose changes, directionality instruction also correspondingly changes therewith.
If in addition, relating to the description of " first ", " second " etc. in the embodiment of the present invention, should " first ", " second " etc.
Description be only used for describing purpose, and it is not intended that instruction or imply its relative importance or implicit indicate indicated skill
The quantity of art feature.Thus, define " first ", the feature of " second " can be expressed or implicitly include at least one this spy
Levy.In addition, the technical scheme between each embodiment can be combined with each other, but must be with those of ordinary skill in the art's energy
Based on enough realizations, will be understood that the knot of this technical scheme when the combination appearance of technical scheme is conflicting or cannot realize
Close and do not exist, also not within the protection domain of application claims.
The invention provides a kind of one drags the refrigeration control scheme of many air-conditionings, it is compressed according to the ability need of indoor set
The control of unit frequency, is modified with current indoor ambient temperature also by indoor design temperature simultaneously, so that meeting room
While the refrigeration demand of inner room, control compressor frequency exactly, and air-conditioning efficiency is preferable.
As shown in Figure 1 it is proposed that the one of the embodiment of the present invention drags the refrigeration control method first embodiment of many air-conditionings.This is real
Applying the one of example drags the refrigeration control method of many air-conditionings to comprise the following steps:
During step s110, operation of air conditioner, obtain the ability need value of the indoor apparatus of air conditioner being in running status；
One when dragging many operation of air conditioner, and indoor set first receives open command first, and controlled outdoor according to this open command
Machine is opened and is run.When multiple indoor sets are all opened and run, off-premises station will control compressor frequency to run, to meet each room
The refrigeration demand of interior machine.In the present embodiment, during operation of air conditioner, according to the nominal refrigerating capacity of each indoor set, obtain
The ability need value of the indoor apparatus of air conditioner running.Specific as follows:
Nominal refrigerating capacity in the interior machine of below 2600w, the span of ability need value be [0.7,0.9) preferably,
This ability need value can take 0.8；
Nominally refrigerating capacity isThe interior machine of scope, the span of ability need value be [0.9,
1.1) it is preferable that this ability need value can take 1.0；
Nominally refrigerating capacity isThe interior machine of scope, the span of ability need value be [1.1,
1.5) it is preferable that this ability need value can take 1.2；
Nominal refrigerating capacity is the interior machine of more than 5000w scope, and the span of ability need is [1.5,2.2], preferably
Ground, this ability need value can take 2.0.
Exemplified as above is conventional nominal refrigerating capacity situation, does not limit also other nominal refrigerating capacity feelings
Condition.
Step s120, the design temperature obtaining indoor set and current indoor ambient temperature；
In the present embodiment, if open indoor set be one, the corresponding design temperature of this indoor set of direct access and work as
Front indoor environment temperature.If the indoor set opened is multiple stage, obtains the corresponding design temperature of each indoor set respectively and work as cup
Interior ambient temperature, then COMPREHENSIVE CALCULATING obtains a design temperature and current indoor ambient temperature again.In one example, can be to each
The corresponding design temperature of indoor set and current indoor ambient temperature are averaging, and obtain design temperature meansigma methodss and indoor environment temperature
Meansigma methodss.It is also possible to corresponding design temperature and current indoor ambient temperature are weighted counting to each indoor set in another example
Calculate, obtain final design temperature and indoor environment temperature.
In this step s120, this indoor set can be obtained by the temperature sensor being disposed in the interior at machine return air inlet corresponding
Indoor environment temperature, obtains the corresponding design temperature of this indoor set by indoor set panel.It is of course also possible to pass through its other party
Formula carries out the acquisition of indoor environment temperature.For example the ambient temperature near user is detected by wearable device.
In addition, said temperature could be arranged to periodically obtain, such as 50s.Obtain indoor setting temperature every Preset Time
Degree and current indoor ambient temperature, are modified with the ability need value to each indoor set, and then control compressor frequency.
Step s130, the design temperature according to the indoor set and current indoor ambient temperature ability need value to each indoor set
Accumulated value be modified, obtain correction value；
Specifically, as shown in Fig. 2 this step s130 includes:
The difference of step s131, the design temperature according to described indoor set and current indoor ambient temperature, determines that ability needs
Seek coefficient k 1；
This ability need coefficient determines according to the difference of design temperature ts and indoor environment temperature t1, specific as follows:
(t1-ts), when >=3 DEG C, the span of k1 is [2.5,4.0] it is preferable that k1 can take 3；
3 > (t1-ts) >=1 DEG C when, the span of k1 be [1.5,2.5) it is preferable that k1 can take 2；
1 > (t1-ts) > 0 DEG C when, the span of k1 be [0.1,1.5) it is preferable that k1 can take 1；
(t1-ts), when≤0 DEG C, k1 value is 0.
Step s132, acquisition capability correction factor k2；
This capacity correction coefficient k 2 can determine according to specific applicable cases, for example, the big compressor of collocation capacity
When, k2 can take 1.2.In the present embodiment, the span of this capacity correction coefficient k 2 is [1,2.5] it is preferable that this k2 is permissible
Take 1.5.
Step s133, the ability need value to each indoor set add up, and obtain cumulative ability need value；
Step s134, the product of the described cumulative ability need value of calculating, ability need coefficient k 1 and capacity correction coefficient k 2,
Obtain correction value.
The ability need value of each indoor set acquired in step s110 is added up, obtains cumulative ability need value.Will
This cumulative ability need value substitutes into below equation with ability need coefficient k 1 and capacity correction coefficient k 2, you can acquisition correction value p:
P=(hp1+hp2+ ... hpn) * k1*k2
Wherein hp1～hpn is the corresponding value of ability need of each indoor set.Specific as follows:
During operation of air conditioner, controller, according to the nominal refrigerating capacity of each indoor set, obtains the air conditioning chamber being currently running
The ability need value of interior machine.Specific as follows:
Nominal refrigerating capacity in the interior machine of below 2600w, the span of ability need value be [0.7,0.9) preferably,
This ability need value can take 0.8；
Nominally refrigerating capacity isThe interior machine of scope, the span of ability need value be [0.9,
1.1) it is preferable that this ability need value can take 1.0；
Nominally refrigerating capacity isThe interior machine of scope, the span of ability need value be [1.1,
1.5) it is preferable that this ability need value can take 1.2；
Nominal refrigerating capacity is the interior machine of more than 5000w scope, and the span of ability need is [1.5,2.2], preferably
Ground, this ability need value can take 2.0.
Exemplified as above is conventional nominal refrigerating capacity situation, does not limit also other nominal refrigerating capacity feelings
Condition.
Step s140, according to described correction value, the running frequency of compressor is adjusted correspondingly.
In the present embodiment, the running frequency of compressor preset range is divided, formed the frequency sequence of 1～n, each
Form mapping relations between frequency sequence value and compressor operating frequency.After step s130 obtains correction value, by this correction value
After being processed accordingly, obtain corresponding frequency sequence value, and search above-mentioned mapping relations, obtain the corresponding pressure of this correction value
Contracting machine running frequency, and control compressor to run by this running frequency.
In the present embodiment, the running frequency sequential value of compressor can also obtain according to corresponding function.For example, fr=
int(p)+1.Wherein int () is bracket function.Illustrated with an example: compressor operating frequency scope 1～100hz is drawn
It is divided into 1～50 frequency sequence, each frequency sequence value has corresponding compressor operating frequency.After assuming operating procedure s130
The correction value obtaining is 16.5, then obtain frequency sequence value 17 after it is carried out with above-mentioned function process, according to frequency sequence value 17,
Search the mapping relations being formed between said frequencies sequential value and compressor operating frequency, can obtain and this frequency sequence value pair
The running frequency of the compressor answered.
The embodiment of the present invention is compressed the control of unit frequency according to the ability need of indoor set, sets also by interior simultaneously
Constant temperature degree is modified with current indoor ambient temperature, so that while meeting the refrigeration demand of indoor room, exactly
Control compressor frequency, and air-conditioning efficiency is preferable.
Above-mentioned one drags the refrigeration control method of many air-conditionings to can be applicable to different refrigeration modes, for example energy saver mode, comfortable
Pattern, atomizing refrigerating pattern etc..Due to also can be different to the demand of temperature and humidity under different refrigeration modes, therefore this
Bright embodiment also proposed a kind of one refrigeration control method second embodiment dragging many air-conditionings.I.e. in the setting temperature obtaining indoor set
When spending, the corresponding design temperature of indoor set will be obtained according to air conditioning operating mode.Below with energy saver mode, comfort mode, atomization
The design temperature obtaining indoor set under refrigeration mode is specifically described.
Under energy saver mode, the design temperature of this indoor set is exactly the design temperature reading from indoor set panel.
Under comfort mode, need the design temperature of indoor set is modified, that is, to reading on indoor set panel
Design temperature carries out temperature-compensating, to meet human body comfort demand.Specific compensation process is: ts '=ts-a, wherein this
For temperature compensation value, relevant with the indoor set quantity being in running status.In the present embodiment, the air-conditioning being in running status is indoor
The quantity of machine is more, and temperature compensation value is higher.For example:
When number of units n≤1 opened by interior machine, the span of a is [1.1,2.5] it is preferable that a can take 2；
Interior machine open number of units 1 < during n≤3, the span of a be (2.5,3.5] it is preferable that a can take 3；
Interior machine open number of units 3 < during n, the span of a be (3.5,4.5] it is preferable that a can take 4.
Under atomizing refrigerating pattern, need to be calculated according to dew point temperature, to give people body refrigerant sense.Specific calculating process is:
Ts=td-b, wherein td are dew point temperature, and b is temperature compensation value, is a definite value.In the present embodiment, this dew point temperature can be led to
The humidity sensor detection crossed on the machine of being disposed in the interior obtains.The span of this b is [2,7] it is preferred that this b can take 3.
In above-mentioned Three models, energy saver mode can reach power saving purpose, and under comfort mode, refrigeration is preferable, Er Qieman
Sufficient human body comfort, atomizing refrigerating pattern, mainly for hot and humid region, can make space air form condensation, air-supply presents
Vaporific, bring refrigerant experience in hot summer to user.
Therefore, by above-mentioned Three models, the individual demand of user can be met, and make the refrigerating function of air-conditioning
Abundanter.
Accordingly, the invention allows for a kind of multi-split air conditioner.As shown in figure 3, this air-conditioner include compressor 11,
Cross valve 12, outdoor heat exchanger 13, at least two indoor heat exchangers 14, be connected to outdoor heat exchanger 13 and indoor heat exchanger 14 it
Between electric expansion valve 15.That is, when indoor set is opened, corresponding electric expansion valve 15 is also opened；When indoor set is closed, corresponding
Electric expansion valve 15 be also switched off.In air-conditioner running, off-premises station flow direction can also be adjusted by electric expansion valve 15
The cold medium flux of indoor set, thus reaching coolant reasonable distribution, meets the heat exchange demand of each indoor set.
It is additionally provided with temperature sensor, to detect indoor current environmental temperature on above-mentioned indoor set.Wherein indoor set and outdoor
Machine is respectively provided with the panel communicating with one another, and is used for carrying out information mutual communication, and controls indoor assembly and outdoor assembly based on this information
Operation.Above-mentioned refrigeration control method can be realized by hardware, also can be realized by a series of instruction code.This refrigeration control method
Corresponding device can be independently arranged it is also possible to be disposed in the interior on machine or the panel of off-premises station.In the present embodiment, it is preferably provided with
On off-premises station.And the corresponding device of this refrigeration control method is referred to as controller.
Specifically, this controller is used for:
Obtain the ability need value of the indoor apparatus of air conditioner being in running status；Design temperature according to indoor set and work as cup
The accumulated value of the ability need value to each indoor set for the interior ambient temperature is modified, and obtains correction value；According to described correction value, right
The running frequency of the compressor of off-premises station is adjusted correspondingly.
One when dragging many operation of air conditioner, and indoor set first receives open command first, and controller controls according to this open command
Off-premises station is opened and is run.When multiple indoor sets are all opened and run, run by controlling compressor frequency, to meet each room
The refrigeration demand of interior machine.Therefore, controller noted above is all based in operation of air conditioner, and the indoor apparatus of air conditioner of unlatching is compressed machine
Running frequency controls.And above-mentioned design temperature and current indoor ambient temperature are the design temperatures of the comprehensive each indoor set opened
After current indoor ambient temperature, the final design temperature being obtained and current indoor ambient temperature.
The embodiment of the present invention is compressed the control of unit frequency according to the ability need of indoor set, sets also by interior simultaneously
Constant temperature degree is modified with current indoor ambient temperature, so that while meeting the refrigeration demand of indoor room, exactly
Control compressor frequency, and air-conditioning efficiency is preferable.
In above-described embodiment, if open indoor set be one, the corresponding design temperature of this indoor set of direct access and
Current indoor ambient temperature detected by temperature sensor.If the indoor set opened is multiple stage, obtain each indoor set respectively
The current indoor ambient temperature that temperature sensor on corresponding design temperature and each indoor set is detected, then COMPREHENSIVE CALCULATING again
Obtain a design temperature and current indoor ambient temperature.In one example, can to each indoor set corresponding design temperature and work as
Front indoor environment temperature is averaging, and obtains design temperature meansigma methodss and indoor environment temperature meansigma methodss.In another example it is also possible to
To each indoor set, corresponding design temperature and current indoor ambient temperature are weighted, and obtain final design temperature and room
Interior ambient temperature.
In addition, above-mentioned indoor environment temperature could be arranged to periodically obtain, such as 50s.Obtain room every Preset Time
Interior design temperature and current indoor ambient temperature, are modified with the ability need value to each indoor set, and then control compressor
Frequency.
In above-described embodiment, controller noted above is additionally operable to: the design temperature according to described indoor set and current indoor environment
The difference of temperature, determines ability need coefficient k 1；Acquisition capability correction factor k2；The ability need value of each indoor set is tired out
Plus, obtain cumulative ability need value；Calculate described cumulative ability need value, ability need coefficient k 1 and capacity correction coefficient k 2
Product, obtains correction value.
Specifically, this ability need coefficient determines according to the difference of design temperature ts and indoor environment temperature t1, specifically such as
Under:
(t1-ts), when >=3 DEG C, the span of k1 is [2.5,4.0] it is preferable that k1 can take 3；
3 > (t1-ts) >=1 DEG C when, the span of k1 be [1.5,2.5) it is preferable that k1 can take 2；
1 > (t1-ts) > 0 DEG C when, the span of k1 be [0.1,1.5) it is preferable that k1 can take 1；
(t1-ts), when≤0 DEG C, k1 value is 0.
Aforementioned capabilities correction factor k2 can determine according to specific applicable cases, for example, if the big pressure of collocation capacity
During contracting machine, k2 can take 1.2.In the present embodiment, the span of this capacity correction coefficient k 2 is [1,2.5] it is preferable that this k2
1.5 can be taken.
The ability need value of acquired each indoor set is added up, obtains cumulative ability need value.By this cumulative energy
Power requirements substitute into below equation with ability need coefficient k 1 and capacity correction coefficient k 2, you can acquisition correction value p:
P=(hp1+hp2+ ... hpn) * k1*k2
Wherein hp1～hpn is the corresponding value of ability need of each indoor set.
In above-described embodiment, the running frequency of compressor preset range is divided, formed the frequency sequence of 1～n, often
Form mapping relations between individual frequency sequence value and compressor operating frequency.After obtaining correction value, this correction value is carried out phase
After the process answered, obtain corresponding frequency sequence value, and search above-mentioned mapping relations, obtain this correction value corresponding compressor fortune
Line frequency, and control compressor to run by this running frequency.
In the present embodiment, the running frequency sequential value of compressor can also obtain according to corresponding function.For example, fr=
int(p)+1.Wherein int () is bracket function.Illustrated with an example: compressor operating frequency scope 1～100hz is drawn
It is divided into 1～50 frequency sequence, each frequency sequence value has corresponding compressor operating frequency.Assume that the correction value obtaining is
16.5, then obtain frequency sequence value 17 after it is carried out with above-mentioned function calculating, according to frequency sequence value 17, search said frequencies sequence
The mapping relations being formed between train value and compressor operating frequency, can obtain the fortune with this corresponding compressor of frequency sequence value
Line frequency.
In above-described embodiment, above-mentioned one drags the refrigeration control method of many air-conditionings to can be applicable to different refrigeration modes, for example
Energy saver mode, comfort mode, atomizing refrigerating pattern etc..Due to also can to the demand of temperature and humidity under different refrigeration modes
The design temperature that difference, therefore controller obtain correction value obtains according to corresponding calculating of air conditioning operating mode.Below with energy-conservation mould
The design temperature obtaining indoor set under formula, comfort mode, atomizing refrigerating pattern is specifically described.
Under energy saver mode, the design temperature of this indoor set is exactly the design temperature reading from indoor set panel.
Under comfort mode, need the design temperature of indoor set is modified, that is, to reading on indoor set panel
Design temperature carries out temperature-compensating, to meet human body comfort demand.Specific compensation process is: ts '=ts-a, wherein this
For temperature compensation value, relevant with the indoor set quantity being in running status.In the present embodiment, the air-conditioning being in running status is indoor
The quantity of machine is more, and temperature compensation value is higher.For example:
When number of units n≤1 opened by interior machine, the span of a is [1.1,2.5] it is preferable that a can take 2；
Interior machine open number of units 1 < during n≤3, the span of a be (2.5,3.5] it is preferable that a can take 3；
Interior machine open number of units 3 < during n, the span of a be (3.5,4.5] it is preferable that a can take 4.
Under atomizing refrigerating pattern, need to be calculated according to dew point temperature, to give people body refrigerant sense.Specific calculating process is:
Ts=td-b, wherein td are dew point temperature, and b is temperature compensation value, is a definite value.In the present embodiment, this dew point temperature can be led to
The humidity sensor detection crossed on the machine of being disposed in the interior obtains.The span of this b is [2,7] it is preferred that this b can take 3.
Controller noted above is used for: judge the operational mode of air-conditioning, and after reading the design temperature that sensor detection obtains,
Further according to the corresponding design temperature of operational mode acquisition model, for the calculating of ability need correction value.Further, since air-conditioning
When running atomizing refrigerating pattern, this design temperature is calculated by the dew point temperature of indoor set and obtains, and therefore also sets up one on indoor set
Humidity sensor, to detect indoor environment humidity.Controller obtains detected indoor environment humidity, and calculates dew point temperature,
And then calculate acquisition design temperature.
In above-mentioned Three models, energy saver mode can reach power saving purpose, and under comfort mode, refrigeration is preferable, Er Qieman
Sufficient human body comfort, atomizing refrigerating pattern, mainly for hot and humid region, can make space air form condensation, air-supply presents
Vaporific, bring refrigerant experience in hot summer to user.
Therefore, by above-mentioned Three models, the individual demand of user can be met, and make the refrigerating function of air-conditioning
Abundanter.
The foregoing is only the preferred embodiments of the present invention, not thereby limit the present invention the scope of the claims, every this
Under the inventive concept of invention, the equivalent structure transformation made using description of the invention and accompanying drawing content, or directly/indirectly use
In the scope of patent protection that other related technical fields are included in the present invention.
Claims (11)
1. a kind of one drag the refrigeration control method of many air-conditionings it is characterised in that comprising the following steps:
During operation of air conditioner, obtain the ability need value of the indoor apparatus of air conditioner being in running status；
Obtain design temperature and the current indoor ambient temperature of indoor set；
The accumulated value of the design temperature according to the indoor set and current indoor ambient temperature ability need value to each indoor set is carried out
Revise, obtain correction value；
According to described correction value, the running frequency of compressor is adjusted correspondingly.
2. as claimed in claim 1 one drag the refrigeration control method of many air-conditionings it is characterised in that described setting according to indoor set
The accumulated value of the constant temperature degree and current indoor ambient temperature ability need value to each indoor set is modified, and obtains the step of correction value
Rapid inclusion:
Design temperature according to described indoor set and the difference of current indoor ambient temperature, determine ability need coefficient k 1；
Acquisition capability correction factor k2；
The ability need value of each indoor set is added up, obtains cumulative ability need value；
Calculate the product of described cumulative ability need value, ability need coefficient k 1 and capacity correction coefficient k 2, obtain correction value.
3. as claimed in claim 2 one drag the refrigeration control method of many air-conditionings it is characterised in that setting of described acquisition indoor set
The step of constant temperature degree includes:
According to air conditioning operating mode, obtain the corresponding design temperature of indoor set.
4. as claimed in claim 3 one drag the refrigeration control method of many air-conditionings it is characterised in that described air conditioning operating mode is
During comfort mode, the quantity temperature of the indoor apparatus of air conditioner being in running status according to the corresponding design temperature of described indoor set is entered
Design temperature after row compensating approach.
5. as claimed in claim 4 one drag the refrigeration control method of many air-conditionings it is characterised in that described temperature compensation value and place
Quantity in the indoor apparatus of air conditioner of running status corresponds to, and quantity is more, and temperature compensation value is higher.
6. as claimed in claim 3 one drag the refrigeration control method of many air-conditionings it is characterised in that described air conditioning operating mode is
During atomizing refrigerating pattern, the corresponding design temperature of described indoor set is to be obtained according to the corresponding dew point temperature of indoor set to set temperature
Degree.
7. one kind one drags many air-conditionings, including off-premises station and at least two indoor sets it is characterised in that also include control indoor set and
The controller of off-premises station and be disposed in the interior the temperature sensor on machine；Described temperature sensor is used for obtaining working as of indoor set
Front indoor environment temperature；Described controller is used for:
Obtain the ability need value of the indoor apparatus of air conditioner being in running status；
The accumulated value of the design temperature according to the indoor set and current indoor ambient temperature ability need value to each indoor set is carried out
Revise, obtain correction value；
According to described correction value, the running frequency of the compressor of off-premises station is adjusted correspondingly.
8. as claimed in claim 7 one drag many air-conditionings it is characterised in that described controller is additionally operable to:
Design temperature according to described indoor set and the difference of current indoor ambient temperature, determine ability need coefficient k 1；
Acquisition capability correction factor k2；
The ability need value of each indoor set is added up, obtains cumulative ability need value；
Calculate the product of described cumulative ability need value, ability need coefficient k 1 and capacity correction coefficient k 2, obtain correction value.
9. as claimed in claim 8 one drag many air-conditionings it is characterised in that described controller is additionally operable to: according to operation of air conditioner mould
Formula, obtains the corresponding design temperature of indoor set.
10. as claimed in claim 9 one drag many air-conditionings it is characterised in that described controller is used for: air conditioning operating mode is easypro
During suitable pattern, compensated and corrected according to the quantity temperature of the indoor apparatus of air conditioner being in running status, obtain design temperature.
11. as claimed in claim 9 one drag many air-conditionings it is characterised in that being additionally provided with humidity sensor on described indoor set, use
In the indoor environment humidity obtaining indoor set；Described controller is additionally operable to: when described air conditioning operating mode is atomizing refrigerating pattern,
According to indoor environment humidity, obtain the corresponding dew point temperature of indoor set, and according to described dew point temperature, obtain design temperature.
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