CN104406272A - Air-conditioning control method - Google Patents
Air-conditioning control method Download PDFInfo
- Publication number
- CN104406272A CN104406272A CN201410690308.3A CN201410690308A CN104406272A CN 104406272 A CN104406272 A CN 104406272A CN 201410690308 A CN201410690308 A CN 201410690308A CN 104406272 A CN104406272 A CN 104406272A
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- Prior art keywords
- temperature
- compressor
- control method
- conditioning control
- outdoor
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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
- F24F2110/10—Temperature
-
- 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
-
- 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
-
- 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)
- Air Conditioning Control Device (AREA)
Abstract
The invention relates to the field of air-conditioning operational control and specifically relates to an air-conditioning control method. The air-conditioning control method comprises the steps of S1, detecting the outer tube temperature T-outer tube of an outdoor unit, an outdoor environment temperature T-outdoor environment and the exhaust temperature T-exhaust of a compressor in real time and obtaining the real-time operational rotating speed of the outdoor unit according to the operational rotating speed function of the outdoor fan; S2, detecting an indoor environment temperature T-indoor in real time, and taking the indoor environment temperature T-indoor and the door environment temperature T-outdoor environment into a compressor operational frequency function to obtain the real-time operational frequency of the compressor; and S3, detecting an inner tube temperature T-inner tube of an indoor unit and n suction temperature T-suction of the compressor, and taking the inner tube temperature T-inner tube, the suction temperature T-suction of the compressor, the outdoor environment temperature T-outdoor environment and the exhaust temperature T-exhaust of the compressor into an expansion valve openness degree function to obtain the openness degree of the expansion valve. According the air-conditioning control method, the system response time of the whole unit is short, the air-conditioning unit can enter a steady operation stage rapidly, precise control can be achieved, and the number of early matching experiments is small.
Description
Technical field
The present invention relates to operation of air conditioner control field, be specifically related to a kind of air conditioning control method.
Background technology
Along with the raising of people's living standard, the dependence of people to air-conditioning is more and more higher, has equal using air-condition in a lot of family or office space to carry out heating winter or cooling in summer.Generally, in prior art, most air conditioner uses state modulator compressor operating frequency, expansion valve opening, cross valve parts and the internal-external machine rotating speeds such as the temperature collected, realize the function of cooling and warming, realize whether stablizing of indoor environment comfort level by the response speed of control logic.
In prior art, during operation of air conditioner, when controlling compressor operating frequency, expansion valve opening, cross valve parts and internal-external machine rotating speed, many employings fuzzy control method adds PID control method.But adopt fuzzy control method to add PID control method when controlling, the complete machine runtime system response time is longer.Pursue today of high comfortable life people, this kind of control method can not precisely control, and needs the time longer when reaching stable, and complete machine needs great many of experiments or empirical value when formulating controling parameters.
Based on above description, need badly and want a kind of new air conditioning control method, longer to solve the complete machine runtime system response time existed in prior art, can not precisely control, outer blower fan, longer easy fluctuation stabilization time of expansion valve opening coordinated control system, airconditioning control change of frequency comparatively fast causes fluctuations in indoor temperature to occur that comfortableness is poor with indoor working conditions change, and complete machine needs the problem of great many of experiments or empirical value when formulating controling parameters.
Summary of the invention
In view of this, the object of the present invention is to provide a kind of air conditioning control method, the method makes the complete machine runtime system response time shorter, can enter stable operation stage fast, and realizes precisely controlling, and makes early stage Matching Experiment less.
Another object of the present invention is to provide a kind of air conditioning control method, and the method makes air-conditioning energy self-operating reach best operating point, and complete machine operational energy efficiency is higher.
Another object of the present invention is to provide a kind of air conditioning control method, and the method makes outer blower fan, expansion valve opening coordinated control system stabilization time is shorter and not easily fluctuate, and by realizing complete machine stable operation to interfere information process, complete machine concussion is less.
The embodiment of the present invention is by the following technical solutions:
A kind of air conditioning control method, comprises step:
The outer tube temperature T of S1, in real time detection off-premises station
outer tube, outdoor environment temperature T
outer shroudand compressor exhaust temperature T during operation of air conditioner
row, and the running speed function detected value being brought into outdoor fan tries to achieve the real time execution rotating speed of outdoor fan;
S2, in real time detection indoor environment temperature T
in, and by detected indoor environment temperature T
in, detected in step S1 outdoor environment temperature T
outer shroudand for presetting indoor temperature T
settingbring the real time execution frequency that compressor operating frequency function asks for compressor into;
The interior pipe temperature T of S3, in real time detection indoor set
interior pipeand compressor air suction temperature T
inhale, and by pipe temperature T in detected
interior pipe, compressor air suction temperature T
inhaleand the outdoor environment temperature T detected by step S1
outer shroudwith compressor exhaust temperature T
rowbring the real-time aperture that expansion valve opening function asks for expansion valve into.
As preferably, in step sl, the function asking for the running speed l_F of described outdoor fan is;
L_F=a
1(T
outer tube-T
outer shroud)+b
1* T
row;
Wherein,
Parameter a
1for the principal impact factor of outdoor fan running speed;
Parameter b
1for the secondary factor of influence of outdoor fan running speed.
As preferably, described parameter a
1with parameter b
1all experimentally data fitting draws.
As preferably, in step s 2, the function asking for described compressor operating frequency l_f is:
Wherein,
T
settingfor default indoor temperature;
η is compressor operating frequency principal impact factor;
F
revisefor compressor operating frequency time factor of influence.
As preferably, described parameter η and parameter f
reviseall experimentally data fitting draws.
As preferably, in step s3, the function asking for described expansion valve opening l_P is:
Wherein,
Q is expanding valve body actual flow;
Q
mfor the maximum stream flow of expanding valve body aperture.
As preferably, the initial opening of described expansion valve experimentally data fitting draws.
As preferably, when the running speed of described outdoor fan reaches stable, off-premises station records the running speed of now outdoor fan, as the initial value of outdoor fan running speed during next similar environments start.
The Advantageous Effects of the technical scheme that the embodiment of the present invention proposes is:
The air conditioning control method provided due to the application introduces neural control method, and the outdoor fan rotating speed that domestic air conditioning relates to by this control method, expansion valve opening, compressor operating frequency three parameter piecemeals control, but interrelated again.Institute's complete machine runtime system response time that can make in this way is shorter, can enter stable operation stage fast, and realizes precisely controlling, and makes early stage Matching Experiment less.And the method makes air-conditioning energy self-operating reach best operating point, and complete machine operational energy efficiency is higher.Can make a response when fluctuation occurs operating mode, make outer blower fan, expansion valve opening coordinated control system stabilization time is shorter and not easily fluctuate.Owing to controlling separately to link, by realizing complete machine stable operation to interfere information process, when complete machine is run, concussion is less.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in the embodiment of the present invention, below the accompanying drawing used required in describing the embodiment of the present invention is briefly described, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to the content of the embodiment of the present invention and these accompanying drawings.
Fig. 1 is airconditioning control flow chart provided by the invention.
Detailed description of the invention
The technical problem solved for making the present invention, the technical scheme of employing and the technique effect that reaches are clearly, be described in further detail below in conjunction with the technical scheme of accompanying drawing to the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those skilled in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
This application provides a kind of air conditioning control method, this control method comprises step:
The outer tube temperature T of S1, in real time detection off-premises station
outer tube, outdoor environment temperature T
outer shroudand compressor exhaust temperature T during operation of air conditioner
row, and the running speed function detected value being brought into outdoor fan tries to achieve the real time execution rotating speed of outdoor fan.
S2, in real time detection indoor environment temperature T
in, and by detected indoor environment temperature T
in, detected in step S1 outdoor environment temperature T
outer shroudand for presetting indoor temperature T
settingbring the real time execution frequency that compressor operating frequency function asks for compressor into.
The interior pipe temperature T of S3, in real time detection indoor set
interior pipeand compressor air suction temperature T
inhale, and by pipe temperature T in detected
interior pipe, compressor air suction temperature T
inhaleand the outdoor environment temperature T detected by step S1
outer shroudwith compressor exhaust temperature T
rowbring the real-time aperture that expansion valve opening function asks for expansion valve into.
Concrete, as shown in Figure 1, the control of outdoor fan running speed is primarily of the outer tube temperature T of off-premises station
outer tubewith outdoor environment temperature T
outer shroudcontrol.Further, compressor exhaust temperature T during operation of air conditioner can be also subject to when outdoor fan runs
rowimpact, so when compressor exhaust temperature T being detected
rowoutdoor fan can be made time too high to run up, to reduce compressor exhaust temperature T
row, to realize the reliability of system.Wherein, the function asking for the running speed l_F of described outdoor fan is;
L_F=a
1(T
outer tube-T
outer shroud)+b
1* T
row;
Wherein,
Parameter a
1for the principal impact factor of outdoor fan running speed;
Parameter b
1for the secondary factor of influence of outdoor fan running speed.
As preferably, described parameter a
1with parameter b
1all experimentally data fitting draws.
When outdoor fan is started working, data will be detected above, i.e. the outer tube temperature T of off-premises station
outer tube, outdoor environment temperature T
outer shroudand compressor exhaust temperature T
rowbring the running speed function of outdoor fan into, calculate the running speed l_F of outdoor fan.
In the present embodiment, preferably, when the running speed of described outdoor fan reaches system stability, off-premises station can record the running speed of now outdoor fan voluntarily, as the initial value of outdoor fan running speed during next similar environments start.
In the present embodiment, preferably, the outer tube temperature T of off-premises station
outer tubedetected by the pipe warming thermometer bulb that outside condenser is arranged, outdoor environment temperature T
outer shrouddetected by the ring warming thermometer bulb of side disposed in the outdoor.Compressor exhaust temperature T
rowdetected by the temperature-sensitive bag being arranged on compressor exhaust pipe place.Certainly, the outer tube temperature T of off-premises station
outer tube, outdoor environment temperature T
outer shroudand compressor exhaust temperature T
rowcheckout equipment and detection mode be not limited thereto, can also in other way or Equipment Inspection.
Because complete machine running frequency becomes along with indoor set load variations, but indoor environment temperature is alternation in actual motion, and therefore this control method directly adopts default indoor temperature T
settingfor controlling the parameter of compressor operating frequency, as shown in Figure 1, by outdoor environment temperature T
outer shroudwith default indoor temperature T
settingdetermine the initial value of compressor operating frequency, then with indoor environment temperature T
inwith default indoor temperature T
settingrate of change as the correction value of compressor operating frequency, default indoor temperature T can be realized fast like this
settingreach setting value, again can not because of indoor environment temperature T
inchange produce that to shake the energy consumption that the frequent lifting frequency of compressor frequency is caused higher, and then make fluctuations in indoor temperature cause more greatly human body uncomfortable.The function asking for described compressor operating frequency l_f is:
Wherein,
T
settingfor default indoor temperature;
η is compressor operating frequency principal impact factor;
F
revisefor compressor operating frequency time factor of influence.
Described parameter η and parameter f
reviseall experimentally data fitting draws.
In the present embodiment, preferably, described default indoor temperature T
settingby the direct setting value of remote controller.
To sum up, the control procedure of compressor operating frequency is: after outdoor fan is opened, by outdoor environment temperature T
outer shroudand default indoor temperature T
settingbring the function asking for compressor operating frequency l_f into and calculate the initial optimum frequency of compressor, according to indoor environment temperature T
inand default indoor temperature T
settingdifference rate of change carry out frequency trim, prevent fast liter from falling soon and cause fluctuations in indoor temperature.
The aperture of expansion valve controls from compressor starts is run, and the initial control aperture of described expansion valve experimentally data fitting draws.As shown in Figure 1, the operation aperture of expansion valve is according to compressor air suction temperature T
inhalewith interior pipe temperature T
interior piperate of change and step S1 in detected outdoor environment temperature T
outer shroudwith compressor exhaust temperature T
rowdetermine.By detected outdoor environment temperature T
outer shroud, compressor exhaust temperature T
row, compressor air suction temperature T
inhaleand interior pipe temperature T
interior pipebring the function asking for expansion valve opening l_P into calculate, by compressor air suction temperature T
inhalewith interior pipe temperature T
interior piperate of change, compressor exhaust temperature T
rowwith outdoor environment temperature T
outer shroudrate of change coordinated signals expansion valve operation curve adjust in real time, make system automatically reach optimal operational condition.The function asking for described expansion valve opening l_P is:
Wherein,
Q is expanding valve body actual flow;
Q
mfor the maximum stream flow of expanding valve body aperture.
This control method separately controls the real-time aperture of the real time execution rotating speed of the real time execution frequency of compressor, outdoor fan, expansion valve from algorithm, but compressor exhaust temperature T
rowhave with the real time execution rotating speed of outdoor fan and the real time execution frequency of compressor and a bit associate, indoor environment temperature T
inwith the real time execution rotating speed of outdoor fan and the real time execution frequency close relation of compressor, whole like this control system is all that as the work of leading certainty factor adjustment associated components, (the real time execution frequency of compressor is by outdoor environment temperature T by constant or relatively stable parameter
outer shroudwith default indoor temperature T
settingcontrol, the real time execution rotating speed of outdoor fan is by the outer tube temperature T of off-premises station
outer tubewith outdoor environment temperature T
outer shrouddifference controls, and the real-time aperture of expansion valve is by compressor exhaust temperature T
rowwith outdoor environment temperature T
outer shrouddifference controls).Such system can be stablized reach target set temperature fast and realize refrigeration and heat-production functions early stage, because additional revisory coefficient can make complete machine stable operation, and carry out parameters revision according to the benchmark of upper joint arithmetic result when calculating according to neural control method, reach optimum operation combination, in whole pre-stage test, the value of coefficient correlation only need be found can to realize air conditioner intelligent regulate.
In the present embodiment, the parameter of best operating point can be remembered during three's coordinated signals at every turn, as the adjustment that next time is run, carried out quick adjustment as a reference with former data memory when making each temperature-sensitive bag temperature change like this, make complete machine reach stable state fast.
This programme is by introducing neural control method, and real-time aperture three parameter piecemeals of the real time execution frequency of the compressor related to by domestic air conditioning, the real time execution rotating speed of outdoor fan, expansion valve control, but interrelated again.Such complete machine can enter stable operation fast, can make a response when fluctuation occurs operating mode, single less owing to shaking when controlling separately to link and make complete machine run.
Note, above are only preferred embodiment of the present invention and institute's application technology principle.Skilled person in the art will appreciate that and the invention is not restricted to specific embodiment described here, various obvious change can be carried out for a person skilled in the art, readjust and substitute and can not protection scope of the present invention be departed from.Therefore, although be described in further detail invention has been by above embodiment, the present invention is not limited only to above embodiment, when not departing from the present invention's design, can also comprise other Equivalent embodiments more, and scope of the present invention is determined by appended right.
Claims (8)
1. an air conditioning control method, is characterized in that, comprises step:
The outer tube temperature T of S1, in real time detection off-premises station
outer tube, outdoor environment temperature T
outer shroudand compressor exhaust temperature T during operation of air conditioner
row, and the running speed function detected value being brought into outdoor fan tries to achieve the real time execution rotating speed of outdoor fan;
S2, in real time detection indoor environment temperature T
in, and by detected indoor environment temperature T
in, detected in step S1 outdoor environment temperature T
outer shroudand for presetting indoor temperature T
settingbring the real time execution frequency that compressor operating frequency function asks for compressor into;
The interior pipe temperature T of S3, in real time detection indoor set
interior pipeand compressor air suction temperature T
inhale, and by pipe temperature T in detected
interior pipe, compressor air suction temperature T
inhaleand the outdoor environment temperature T detected by step S1
outer shroudwith compressor exhaust temperature T
rowbring the real-time aperture that expansion valve opening function asks for expansion valve into.
2. air conditioning control method as claimed in claim 1, it is characterized in that, in step sl, the function asking for the running speed l_F of described outdoor fan is;
L_F=a
1(T
outer tube-T
outer shroud)+b
1* T
row;
Wherein,
Parameter a
1for the principal impact factor of outdoor fan running speed;
Parameter b
1for the secondary factor of influence of outdoor fan running speed.
3. air conditioning control method as claimed in claim 2, is characterized in that, described parameter a
1with parameter b
1all experimentally data fitting draws.
4. air conditioning control method as claimed in claim 1, it is characterized in that, in step s 2, the function asking for described compressor operating frequency l_f is:
Wherein,
T
settingfor default indoor temperature;
η is compressor operating frequency principal impact factor;
F
revisefor compressor operating frequency time factor of influence.
5. air conditioning control method as claimed in claim 4, is characterized in that, described parameter η and parameter f
reviseall experimentally data fitting draws.
6. air conditioning control method as claimed in claim 1, it is characterized in that, in step s3, the function asking for described expansion valve opening l_P is:
Wherein,
Q is expanding valve body actual flow;
Q
mfor the maximum stream flow of expanding valve body aperture.
7. air conditioning control method as claimed in claim 6, is characterized in that, the initial opening of described expansion valve experimentally data fitting draws.
8. air conditioning control method as claimed in claim 2, it is characterized in that, when the running speed of described outdoor fan reaches stable, off-premises station records the running speed of now outdoor fan, as the initial value of outdoor fan running speed during next similar environments start.
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|---|---|---|---|
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|---|---|---|---|
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| CN104406272B CN104406272B (en) | 2017-09-15 |
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| CN105135609A (en) * | 2015-08-19 | 2015-12-09 | 广东美的暖通设备有限公司 | Method for controlling pressure of air conditioner system, controller and air conditioner system |
| CN105299845A (en) * | 2015-11-20 | 2016-02-03 | 广东美的制冷设备有限公司 | Virtual running parameter detecting method and device of air conditioner system |
| CN106152646A (en) * | 2016-07-04 | 2016-11-23 | 青岛海尔空调器有限总公司 | The method controlling air conditioner electronic expansion valve |
| CN106322870A (en) * | 2016-11-14 | 2017-01-11 | 广东美的暖通设备有限公司 | Control method and device for electronic expansion valve and air conditioner heat pump system |
| CN106322809A (en) * | 2016-08-31 | 2017-01-11 | 珠海格力电器股份有限公司 | Heating and ventilation equipment and throttle control method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105135609A (en) * | 2015-08-19 | 2015-12-09 | 广东美的暖通设备有限公司 | Method for controlling pressure of air conditioner system, controller and air conditioner system |
| CN105299845B (en) * | 2015-11-20 | 2018-03-13 | 广东美的制冷设备有限公司 | Air-conditioning system operational factor virtual detection method and device |
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| CN106152646A (en) * | 2016-07-04 | 2016-11-23 | 青岛海尔空调器有限总公司 | The method controlling air conditioner electronic expansion valve |
| 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 |
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