CN104930772B - Control method, device and the air-conditioning system of electric expansion valve initial opening - Google Patents
Control method, device and the air-conditioning system of electric expansion valve initial opening Download PDFInfo
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- CN104930772B CN104930772B CN201510246348.3A CN201510246348A CN104930772B CN 104930772 B CN104930772 B CN 104930772B CN 201510246348 A CN201510246348 A CN 201510246348A CN 104930772 B CN104930772 B CN 104930772B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
-
- 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
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/83—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers
-
- 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
- F24F11/89—Arrangement or mounting of control or safety devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/83—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers
- F24F11/84—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers using valves
-
- 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
- F24F2110/12—Temperature of the outside air
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Atmospheric Sciences (AREA)
- Physics & Mathematics (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Signal Processing (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The present invention discloses a kind of control method, device and the air-conditioning system of electric expansion valve initial opening.Methods described includes：Obtain current outdoor temperature；Based on default computation rule, the scale parameter corresponding with the current outdoor temperature is calculated；Calculate air-conditioner set target operating frequency；The product of the scale parameter and the air-conditioner set target operating frequency is calculated, electric expansion valve initial opening numerical value is obtained；The electric expansion valve is controlled to be run according to the initial opening numerical value.The technical scheme provided using the present invention, can make electric expansion valve be worked according to suitable initial opening, so as to help air-conditioning system to rapidly enter stable state, running has certain energy-saving effect relative to prior art.
Description
Technical field
The present invention relates to control method, device and the sky of control technology field, more particularly to electric expansion valve initial opening
Adjusting system.
Background technology
In current economic society, air-conditioning with its good refrigeration, heat the effects such as, using than wide.
Electric expansion valve initial opening refers to just start shooting the moment in air-conditioning system, the preset value size of electric expansion valve.Electricity
Sub- expansion valve initial opening plays vital effect to the stabilization of air-conditioning system, if the selection of electric expansion valve initial opening is not
When then air-conditioning system is stable very slow, if the selection of electric expansion valve initial opening is suitable, air-conditioning system can reach surely quickly
Determine, and air-conditioning system can be run in the state of an efficiency is higher.
But, in the prior art, the control to electric expansion valve initial opening is often by virtue of experience estimated, to electronics
The determination of expansion valve initial opening is not accurate enough, so that air-conditioning system is slower into stable state, operation not enough energy-conservation.
The content of the invention
In view of this, the invention provides a kind of control method of electric expansion valve initial opening, device and a kind of air-conditioning
System, to avoid determination of the prior art to electric expansion valve initial opening not accurate enough, caused air-conditioning system enters
Stable state is slower, the problem of operation is not enough saved.
To achieve the above object, the present invention provides following technical scheme：
A kind of control method of electric expansion valve initial opening, including：
Obtain current outdoor temperature；
Based on default computation rule, the scale parameter corresponding with the current outdoor temperature is calculated；
Calculate air-conditioner set target operating frequency；
The product of the scale parameter and the air-conditioner set target operating frequency is calculated, electric expansion valve is obtained and initially opens
Number of degrees value；
The electric expansion valve is controlled to be run according to the initial opening numerical value.
It is preferred that, before the calculating air-conditioner set target operating frequency, in addition to：
The default computation rule for the scale parameter is obtained, the computation rule is that the scale parameter is closed
In the second degree trinomial expression of the current outdoor temperature,
Wherein, k is the scale parameter, TOutsideFor the current outdoor temperature, a is secondary term coefficient, and b is a term system
Number, c is constant term；A, b and c are preset constant.
It is preferred that, the calculating air-conditioner set target operating frequency, including：
Obtain the design temperature that user sends；
Calculate the target operating frequency corresponding with the design temperature.
It is preferred that, the calculating air-conditioner set target operating frequency, including：
Extract the preset design temperature of user；
Calculate the target operating frequency corresponding with the preset design temperature.
A kind of control device of electric expansion valve initial opening, including：
First acquisition unit, for obtaining current outdoor temperature；
First computing unit, for based on default computation rule, calculating the ratio corresponding with the current outdoor temperature
Parameter；
Second computing unit, for calculating air-conditioner set target operating frequency；
3rd computing unit, the product for calculating the scale parameter and the air-conditioner set target operating frequency, is obtained
To electric expansion valve initial opening numerical value；
Control unit, for controlling the electric expansion valve to be run according to the initial opening numerical value.
It is preferred that, in addition to：
Second acquisition unit, for obtaining the default computation rule for the scale parameter, the computation rule
For, second degree trinomial expression of the scale parameter on the current outdoor temperature,
Wherein, k is the scale parameter, TOutsideFor the current outdoor temperature, a is secondary term coefficient, and b is a term system
Number, c is constant term；A, b and c are preset constant.
It is preferred that, second computing unit includes：
Subelement is obtained, the design temperature for obtaining user's transmission；
First computation subunit, for calculating the target operating frequency corresponding with the design temperature.
It is preferred that, second computing unit includes：
Extract subelement, the design temperature preset for extracting user；
Second computation subunit, for calculating the target operating frequency corresponding with the preset design temperature.
A kind of air-conditioning system, including：
Air-conditioner set, the air-conditioner set includes electric expansion valve；And the controller being connected with the air-conditioner set,
The controller is connected with the electric expansion valve；
The control process of the controller includes, and obtains current outdoor temperature, based on default computation rule, calculate with it is described
The corresponding scale parameter of current outdoor temperature, calculates air-conditioner set target operating frequency, calculate the scale parameter with it is described
The product of air-conditioner set target operating frequency, obtains electric expansion valve initial opening numerical value, control the electric expansion valve according to
The initial opening numerical value operation.
Understand that compared with prior art, the invention provides a kind of electric expansion valve is initial via above-mentioned technical scheme
Control method, device and a kind of air-conditioning system of aperture.The technical scheme provided using the present invention, obtains current outdoor temperature first
Degree, based on default computation rule, calculates the scale parameter corresponding with the current outdoor temperature, then calculates air-conditioner set mesh
Running frequency is marked, the product of the scale parameter and the air-conditioner set target operating frequency is calculated, at the beginning of obtaining electric expansion valve
Beginning aperture numerical value, obtained electric expansion valve initial opening value is calculated relative to passing through in the prior art by technical solution of the present invention
Test the initial opening numerical value fortune that the numerical value estimated is accurately a lot, finally controls the electric expansion valve to be obtained according to calculating
OK, so as to make electric expansion valve be worked according to suitable initial opening, so as to help air-conditioning system to rapidly enter surely
Determine state, running has certain energy-saving effect relative to prior art.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the accompanying drawing used required in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
The embodiment of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can also basis
The accompanying drawing of offer obtains other accompanying drawings.
Fig. 1 is a kind of flow chart of the control method of electric expansion valve initial opening provided in an embodiment of the present invention；
Fig. 2 is the flow chart of the control method of another electric expansion valve initial opening provided in an embodiment of the present invention；
Fig. 3 is a kind of structure chart of the control device of electric expansion valve initial opening provided in an embodiment of the present invention；
Fig. 4 is the structure chart of the control device of another electric expansion valve initial opening provided in an embodiment of the present invention；
Fig. 5 is a kind of structure chart of air-conditioning system provided in an embodiment of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.It is based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not made
Embodiment, belongs to the scope of protection of the invention.
In order to facilitate the understanding of the purposes, features and advantages of the present invention, it is below in conjunction with the accompanying drawings and specific real
Applying mode, the present invention is further detailed explanation.
Embodiment one
Referring to Fig. 1, Fig. 1 is a kind of stream of the control method of electric expansion valve initial opening provided in an embodiment of the present invention
Cheng Tu.As shown in figure 1, this method includes：
Step S101, obtains current outdoor temperature；
Step S102, based on default computation rule, calculates the scale parameter corresponding with the current outdoor temperature；
Specifically, the default computation rule of the scale parameter is that the scale parameter is on the current outdoor temperature
Second degree trinomial expression：
Wherein, k is the scale parameter, and a is secondary term coefficient, and b is Monomial coefficient, and c is constant term, TOutsideWork as to be described
Preceding outdoor temperature；A, b and c are preset constant.Further, optionally, a value is that 0.0157, b value is 0.9908, c value
For 18.89.
Step S103, calculates air-conditioner set target operating frequency；
Specifically, the target operating frequency refers to the target operating frequency of air-conditioner set, the step S103 includes：
Obtain the design temperature that user sends；
Calculate the target operating frequency corresponding with the design temperature.
Or the step S103 includes：
Extract the preset design temperature of user；
Calculate the target operating frequency corresponding with the preset design temperature.
I.e. according to the currently transmitted design temperature of user, or user shifts to an earlier date preset design temperature, calculates air-conditioner set
Target operating frequency.The target operating frequency for calculating air-conditioner set according to design temperature is technology ripe at present, this
Invention is repeated no more.
Step S104, calculates the product of the scale parameter and the air-conditioner set target operating frequency, obtains electronics swollen
Swollen valve initial opening numerical value；
Specifically：
P=k × F (2)
Wherein, k is the scale parameter, and F is the air-conditioner set target operating frequency, the electricity that P is tried to achieve for the present invention
Sub- expansion valve initial opening numerical value.
Step S105, controls the electric expansion valve to be run according to the initial opening numerical value.
The technical scheme provided using the embodiment of the present invention one, obtains current outdoor temperature first, and rule are calculated based on default
Then, the scale parameter corresponding with the current outdoor temperature is calculated, air-conditioner set target operating frequency is then calculated, institute is calculated
The product of scale parameter and the air-conditioner set target operating frequency is stated, electric expansion valve initial opening numerical value is obtained, by this
Inventive technique scheme calculates obtained electric expansion valve initial opening value will essence relative to the numerical value that experience in the prior art is estimated
Really a lot, the initial opening numerical value for finally controlling the electric expansion valve to be obtained according to calculating is run, so as to make electricity
Sub- expansion valve is worked according to suitable initial opening, and then air-conditioning system can be helped to rapidly enter stable state, running
Relative to prior art, there is certain energy-saving effect.
The technical scheme that the present invention is provided is illustrated in order to more detailed, invention additionally discloses another specific implementation
Example.
Embodiment two
Referring to Fig. 2, Fig. 2 is the control method of another electric expansion valve initial opening provided in an embodiment of the present invention
Flow chart.As shown in Fig. 2 this method includes：
Step S201, obtains current outdoor temperature；
Step S202, obtains the default computation rule for scale parameter；
Specifically, being for the default computation rule of the scale parameter, the scale parameter is on described current
The second degree trinomial expression of outdoor temperature：
Wherein, k is the scale parameter, and a is secondary term coefficient, and b is Monomial coefficient, and c is constant term, TOutsideWork as to be described
Preceding outdoor temperature；A, b and c are preset constant.
It should be noted that the computation rule of the scale parameter, is that inventor has used creative thinking to summarize
Go out, inventor is found that the linear relationship between electric expansion valve initial opening value and air-conditioner set running frequency, i.e. P first
=k × F, then, the inventor discovery scale parameter k's is determined to by secondary three on the current outdoor temperature
Formula is obtained, i.e.,Inventor is based on above-mentioned creative discovery, it is determined that experimental model,
To calculate a, b and C value.Experimental model is as follows：For same air-conditioner set, high, normal, basic three kinds of loads are chosen, operating mode is followed successively by
LIt is high、LIn、LIt is low, under each operating mode, respectively to high, normal, basic (FIt is high、FIn、FIt is low) three air-conditioner set running frequencies are tested, adjusted
Section electronic expansion valve opening makes air-conditioner set efficiency reach most preferably, records now electronic expansion valve opening numerical value.In each operating mode
Under high, normal, basic three frequencies have record and have three corresponding optimized electronic expansion valve opening value (PIt is high、PIn、PIt is low), it please specifically join
It is shown in Table 1：
Table 1
Wherein, k1 is high operating mode (LIt is high) under, according to formula P=k × F (successively with reference to PIt is high=kIt is high×FHeight,PIn=kIn×FIn,
PIt is low=kIt is low×FIt is low) calculate the scale parameter k under high operating mode1Fitted data.It is real by taking k1 as an example, it is assumed that under the high operating modes of L
Yan Zhong senior middle schools low frequency is respectively 60Hz, 50Hz, 30Hz, the optimal aperture of electric expansion valve of experimental record be respectively 300P,
200P, 100P, then, optionally, high operating mode can be fitted according to data fitting software ORIGIN or excel software
Under, electronic expansion valve opening and the corresponding linear fit relational expression of air-conditioner set running frequency, this relational expression for drawing of fitting is：
P=4.428 × F, i.e. k1 value are 4.428.With reference to above-mentioned experiment and computational methods, draw under high, normal, basic three kinds of operating modes (load)
K values be followed successively by 4.428,3.325,5.368, and outdoor temperature T corresponding under high, normal, basic three kinds of operating modes (load)OutsideDivide successively
Wei not be 40 DEG C, 30 DEG C, 20 DEG C.So, optionally, it is carried out according to fitting software ORIGIN or excel software secondary many
Formula fitting (k is the quadratic polynomial outside on T), you can draw formula：
Then a, b and c value respectively are 0.0157,0.9908,18.89.
Step S203, based on the default computation rule, calculates the scale parameter corresponding with the current outdoor temperature；
Step S204, calculates air-conditioner set target operating frequency；
Step S205, calculates the scale parameter and air-conditioner set object run frequency corresponding to the current outdoor temperature
The product of rate, obtains electric expansion valve initial opening numerical value；
Step S206, controls the electric expansion valve to be run according to the initial opening numerical value.
It is swollen corresponding to electronics provided in an embodiment of the present invention in order to more comprehensively illustrate the technical scheme that the present invention is provided
Swollen valve initial opening control method, invention additionally discloses a kind of control device of electric expansion valve initial opening.
Referring to Fig. 3, Fig. 3 is a kind of knot of the control device of electric expansion valve initial opening provided in an embodiment of the present invention
Composition.As shown in figure 3, the device includes：
First acquisition unit 301, for obtaining current outdoor temperature；
First computing unit 302, for based on default computation rule, calculating the ratio corresponding with the current outdoor temperature
Example parameter；
Second computing unit 303, for calculating air-conditioner set target operating frequency；
Specifically, second computing unit 303 includes：
Subelement is obtained, the design temperature for obtaining user's transmission；
First computation subunit, for calculating the target operating frequency corresponding with the design temperature；
Extract subelement, the design temperature preset for extracting user；
Second computation subunit, for calculating the target operating frequency corresponding with the preset design temperature.
3rd computing unit 304, the product for calculating the scale parameter and the air-conditioner set target operating frequency,
Obtain electric expansion valve initial opening numerical value；
Control unit 305, for controlling the electric expansion valve to be run according to the initial opening numerical value.
Further, referring to Fig. 4, Fig. 4 is another electric expansion valve initial opening provided in an embodiment of the present invention
Control device structure chart.As shown in figure 4, the device includes：
First acquisition unit 401, for obtaining current outdoor temperature；
Second acquisition unit 402, for obtaining the default computation rule for the scale parameter, the calculating rule
It is then, second degree trinomial expression of the scale parameter on the current outdoor temperature,
Wherein, k is the scale parameter, TOutsideFor the current outdoor temperature, a is secondary term coefficient, and b is a term system
Number, c is constant term；A, b and c are preset constant；
First computing unit 403, for based on default computation rule, calculating the ratio corresponding with the current outdoor temperature
Example parameter；
Second computing unit 404, for calculating air-conditioner set target operating frequency；
3rd computing unit 405, the product for calculating the scale parameter and the air-conditioner set target operating frequency,
Obtain electric expansion valve initial opening numerical value；
Control unit 406, for controlling the electric expansion valve to be run according to the initial opening numerical value.
In order to more comprehensively illustrate the technical scheme that the present invention is provided, invention additionally discloses a kind of air-conditioning system.
Referring to Fig. 5, Fig. 5 is a kind of structure chart of air-conditioning system provided in an embodiment of the present invention.As shown in figure 5, this is
System includes：
Air-conditioner set 501, the air-conditioner set 501 includes electric expansion valve 5011；And with the phase of air-conditioner set 501
The controller 502 of connection, the controller 502 is connected with the electric expansion valve 5011；
The control process of the controller 501 includes, and obtains current outdoor temperature, based on default computation rule, calculate with
The corresponding scale parameter of the current outdoor temperature, calculates the target operating frequency of air-conditioner set 501, calculates the scale parameter
With the product of the target operating frequency of air-conditioner set 501, the initial opening numerical value of electric expansion valve 5011 is obtained, the electricity is controlled
Sub- expansion valve 5011 is run according to the initial opening numerical value.
Finally, in addition it is also necessary to explanation, herein, such as first and second or the like relational terms be used merely to by
One entity or operation make a distinction with another entity or operation, and not necessarily require or imply these entities or operation
Between there is any this actual relation or order.Moreover, term " comprising ", "comprising" or its any other variant meaning
Covering including for nonexcludability, so that process, method, article or equipment including a series of key elements not only include that
A little key elements, but also other key elements including being not expressly set out, or also include be this process, method, article or
The intrinsic key element of equipment.In the absence of more restrictions, the key element limited by sentence "including a ...", is not arranged
Except also there is other identical element in the process including the key element, method, article or equipment.
The embodiment of each in this specification is described by the way of progressive, and what each embodiment was stressed is and other
Between the difference of embodiment, each embodiment identical similar portion mutually referring to.For electronics disclosed in embodiment
For the control device and air-conditioning system of expansion valve initial opening, due to itself and electric expansion valve initial opening disclosed in embodiment
Control method it is corresponding, so description is fairly simple, related part is referring to method part illustration.
Directly it can be held with reference to the step of the method or algorithm that the embodiments described herein is described with hardware, processor
Capable software module, or the two combination are implemented.Software module can be placed in random access memory (RAM), internal memory, read-only deposit
Reservoir (ROM), electrically programmable ROM, electrically erasable ROM, register, hard disk, moveable magnetic disc, CD-ROM or technology
In any other form of storage medium well known in field.
The foregoing description of the disclosed embodiments, enables professional and technical personnel in the field to realize or using the present invention.
A variety of modifications to these embodiments will be apparent for those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, it is of the invention
The embodiments shown herein is not intended to be limited to, and is to fit to and principles disclosed herein and features of novelty phase one
The most wide scope caused.
Claims (9)
1. a kind of control method of electric expansion valve initial opening, it is characterised in that including：
Obtain current outdoor temperature；
Based on default computation rule, the scale parameter corresponding with the current outdoor temperature is calculated；
Calculate air-conditioner set target operating frequency；
The product of the scale parameter and the air-conditioner set target operating frequency is calculated, electric expansion valve initial opening number is obtained
Value；
The electric expansion valve is controlled to be run according to the initial opening numerical value.
2. according to the method described in claim 1, it is characterised in that before the calculating air-conditioner set target operating frequency, also
Including：
The default computation rule for the scale parameter is obtained, the computation rule is that the scale parameter is on institute
The second degree trinomial expression of current outdoor temperature is stated,
Wherein, k is the scale parameter, TOutsideFor the current outdoor temperature, a is secondary term coefficient, and b is Monomial coefficient, and c is
Constant term；A, b and c are preset constant.
3. according to the method described in claim 1, it is characterised in that the calculating air-conditioner set target operating frequency, including：
Obtain the design temperature that user sends；
Calculate the target operating frequency corresponding with the design temperature.
4. according to the method described in claim 1, it is characterised in that the calculating air-conditioner set target operating frequency, including：
Extract the preset design temperature of user；
Calculate the target operating frequency corresponding with the preset design temperature.
5. a kind of control device of electric expansion valve initial opening, it is characterised in that including：
First acquisition unit, for obtaining current outdoor temperature；
First computing unit, for based on default computation rule, calculating the scale parameter corresponding with the current outdoor temperature；
Second computing unit, for calculating air-conditioner set target operating frequency；
3rd computing unit, the product for calculating the scale parameter and the air-conditioner set target operating frequency, obtains electricity
Sub- expansion valve initial opening numerical value；
Control unit, for controlling the electric expansion valve to be run according to the initial opening numerical value.
6. device according to claim 5, it is characterised in that also include：
Second acquisition unit, for obtaining the default computation rule for the scale parameter, the computation rule is, institute
Second degree trinomial expression of the scale parameter on the current outdoor temperature is stated,
Wherein, k is the scale parameter, TOutsideFor the current outdoor temperature, a is secondary term coefficient, and b is Monomial coefficient, and c is
Constant term；A, b and c are preset constant.
7. device according to claim 5, it is characterised in that second computing unit includes：
Subelement is obtained, the design temperature for obtaining user's transmission；
First computation subunit, for calculating the target operating frequency corresponding with the design temperature.
8. device according to claim 5, it is characterised in that second computing unit includes：
Extract subelement, the design temperature preset for extracting user；
Second computation subunit, for calculating the target operating frequency corresponding with the preset design temperature.
9. a kind of air-conditioning system, it is characterised in that including：
Air-conditioner set, the air-conditioner set includes electric expansion valve；And the controller being connected with the air-conditioner set, it is described
Controller is connected with the electric expansion valve；
The control process of the controller includes, and obtains current outdoor temperature, based on default computation rule, calculates and described current
The corresponding scale parameter of outdoor temperature, calculates air-conditioner set target operating frequency, calculates the scale parameter and the air-conditioning
The product of unit target operating frequency, obtains electric expansion valve initial opening numerical value, controls the electric expansion valve according to described
Initial opening numerical value is run.
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| CN106152646B (en) * | 2016-07-04 | 2019-04-19 | 青岛海尔空调器有限总公司 | The method for controlling air conditioner electronic expansion valve |
| CN106052231B (en) * | 2016-07-04 | 2019-05-31 | 青岛海尔空调器有限总公司 | The method for adjusting air conditioner electric expansion valve |
| CN107062556A (en) * | 2017-05-11 | 2017-08-18 | 广东志高暖通设备股份有限公司 | A kind of control method of refrigerant flow of module water dispenser |
| CN107702270A (en) * | 2017-10-11 | 2018-02-16 | 珠海格力电器股份有限公司 | Control method for electronic expansion valve and device, air-conditioning |
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