CN105546731B - The control method that residential central air- is heated in transition season - Google Patents
The control method that residential central air- is heated in transition season Download PDFInfo
- Publication number
- CN105546731B CN105546731B CN201510977161.0A CN201510977161A CN105546731B CN 105546731 B CN105546731 B CN 105546731B CN 201510977161 A CN201510977161 A CN 201510977161A CN 105546731 B CN105546731 B CN 105546731B
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- CN
- China
- Prior art keywords
- pressure
- compressor
- frequency
- outdoor fan
- variable controller
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
- F24F11/74—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity
- F24F11/77—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity by controlling the speed of ventilators
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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
- 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
- F24F2110/30—Velocity
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
Abstract
The invention discloses the control method that a kind of residential central air- is heated in transition season, this method includes the control to compressor and the control to wind turbine, and the control process to compressor is to adjust the frequency reducing rate of compressor in time according to high-pressure；The key of the control method of wind turbine is：After outdoor fan is closed, the temperature of frequency-variable controller is detected, if the temperature rise of frequency-variable controller runs outdoor fan to 75 DEG C, with most low wind file；When meeting one of following two conditions, condition 1 is to drop to 65 DEG C at a temperature of frequency-variable controller, and condition 2 is that high-pressure rises to 3.4Mpa, then is re-closing off outdoor fan.This method had not only been avoided that high voltage fault but also can guarantee frequency-variable controller heat dissipation effect.
Description
Technical field
The present invention relates to VRF Air Conditioning Systems, are especially the control that a kind of residential central air- is heated in transition season
Method.
Background technology
Residential central air- is the small-sized VRF Air Conditioning System of stub on house ornamentation air-conditioning market, typically by a frequency conversion
Outdoor unit and the matching of Duo Tai indoor units use, and multiple rooms can be adjusted into trip temperature simultaneously.Transition season refers to, in season
The alternate period, since weather replaces, outdoor environment temperature is in one not high not low range, such as 20 DEG C~27 DEG C,
Within this temperature range, user is according to personal like, indoors selection refrigeration or heating.
In transition season, residential central air- is relatively difficult to control with respect to normal domestic use air-conditioning, especially in list
The heating of indoor unit is opened in the case that other indoor units are not switched on, and outdoor heat exchanger is big this moment originally and the interior that is switched on is changed
Hot device is small, and refrigerant easily evaporates, and again higher plus outdoor environment temperature at this time, further increases refrigerant and is changed in outdoor
The evaporation capacity of hot device, cause system there is high voltage fault and forced stoppage.In order to reduce the pressure of system high pressure side, it is thus proposed that
Outdoor fan is turned off, to reduce the heat exchange efficiency of outdoor heat exchanger, but will appear the frequency conversion of the problem of new, i.e. unit again in this way
Controller is installed in outdoor unit, and radiates by outdoor fan, can influence frequency control if turned off outdoor fan
The proper heat reduction of device leads to frequency-variable controller long term high temperature, reduces its service life, and then reduce the use of entire air-conditioner set
Service life.
Invention content
The technical problem to be solved by the present invention is to provide one kind and be not only avoided that unit was shut down but also be can guarantee due to high voltage fault
The control method that the residential central air- of frequency-variable controller heat dissipation effect is heated in transition season.
The technical solution of the present invention is to provide the control method that a kind of residential central air- is heated in transition season,
It is as follows：
The control method includes the control to compressor and the control to wind turbine；
Control process to compressor is to start compressor with the frequency of 15~20Hz, and detect the high pressure of unit in real time
Pressure, when high-pressure be 2.85Mpa, then compressor keep current frequency operation, when high-pressure be 3Mpa, then compressor with
The speed frequency reducing operation of 1Hz/5s, when high-pressure is 3.1Mpa, then compressor is run with the speed frequency reducing of 1Hz/s, works as high pressure
Pressure is 3.4Mpa, then compressor is run with the speed frequency reducing of 2Hz/s；
It is as follows to the control process of outdoor fan：
A, start outdoor fan with high wind shelves, when high-pressure is more than 3.1Mpa and is less than 3.4Mpa, reduce a wind
Shelves operation, and with wind shelves continuous service 30s, and enter step b；If high-pressure is greater than or equal to 3.4Mpa, close
Outdoor fan is directly entered step d；
B, if high-pressure is more than 3.1Mpa and is less than 3.4Mpa, then a wind shelves operation is reduced, and with the wind
Shelves continuous service 30s, and enter step c；If high-pressure be greater than or equal to 3.4Mpa, close outdoor fan, directly into
Enter step d；
C, step b is repeated, until outdoor fan completely closes, enters step d；
D, after outdoor fan is closed, detect the temperature of frequency-variable controller, if the temperature rise of frequency-variable controller to 75 DEG C,
Outdoor fan is then run with most low wind file；
E, when meeting one of following two conditions, condition 1 is to drop to 65 DEG C at a temperature of frequency-variable controller, and condition 2 is high
Pressure pressure rises to 3.4Mpa, then is re-closing off outdoor fan,
F, step d~e is repeated, until air-conditioner set is closed.
Using above method, control method and prior art phase that residential central air- of the present invention is heated in transition season
Than haing the following advantages：
It in this way, being not only avoided that system was shut down due to high voltage fault, but also can ensure that frequency-variable controller proper heat reduction, keep away
Exempt from frequency-variable controller and shorten its service life due to temperature is excessively high.
Specific embodiment
The control method that residential central air- of the present invention is heated in transition season, is as follows.
The control method includes the control to compressor and the control to wind turbine.
Control process to compressor is：Compressor is started with the frequency of 15~20Hz, and detects the high pressure of unit in real time
Pressure, the high-pressure refer to the pressure value of exhaust outlet of compressor, it is passed by being arranged on the pressure of exhaust outlet of compressor
What sensor was measured.When high-pressure be 2.85Mpa, then compressor keep current frequency operation, when high-pressure be 3Mpa, then press
Contracting machine is run with the speed frequency reducing of 1Hz/5s, and when high-pressure is 3.1Mpa, then compressor is run with the speed frequency reducing of 1Hz/s,
When high-pressure is 3.4Mpa, then compressor is run with the speed frequency reducing of 2Hz/s.
It is as follows to the control process of outdoor fan.
A, start outdoor fan with high wind shelves, when high-pressure is more than 3.1Mpa and is less than 3.4Mpa, reduce a wind
Shelves operation, and with the wind shelves continuous service 30s after downshift, and enter step b；If high-pressure is greater than or equal to 3.4Mpa,
Outdoor fan is then closed, is directly entered step d；The high wind shelves of outdoor fan just refer to maximum wind shelves.
B, if high-pressure is more than 3.1Mpa and is less than 3.4Mpa, a wind shelves operation is reduced again, and with again
Wind shelves continuous service 30s after secondary downshift, and enter step c；If high-pressure is greater than or equal to 3.4Mpa, outdoor is closed
Wind turbine is directly entered step d.
C, step b is repeated, until outdoor fan completely closes, enters step d.
D, after outdoor fan is closed, detect the temperature of frequency-variable controller, if the temperature rise of frequency-variable controller to 75 DEG C,
Outdoor fan is then run with most low wind file.
E, when meeting one of following two conditions, condition 1 is to drop to 65 DEG C at a temperature of frequency-variable controller, and condition 2 is high
Pressure pressure rises to 3.4Mpa, then is re-closing off outdoor fan,
F, step d~e is repeated, until air-conditioner set is closed.
Claims (1)
1. a kind of control method that residential central air- is heated in transition season, it is characterised in that：It is as follows：The control
Method processed includes the control to compressor and the control to wind turbine；
Control process to compressor is to start compressor, and the compressor row of detection unit in real time with the frequency of 15~20Hz
The high-pressure of gas port, when high-pressure be 2.85Mpa, then compressor keep current frequency operation, when high-pressure be 3Mpa,
Then compressor is run with the speed frequency reducing of 1Hz/5s, and when high-pressure is 3.1Mpa, then compressor is transported with the speed frequency reducing of 1Hz/s
Row, when high-pressure is 3.4Mpa, then compressor is run with the speed frequency reducing of 2Hz/s；
It is as follows to the control process of outdoor fan：
A, start outdoor fan with high wind shelves, when high-pressure is more than 3.1Mpa and is less than 3.4Mpa, reduce a wind shelves fortune
Row, and with wind shelves continuous service 30s, and enter step b；If high-pressure is greater than or equal to 3.4Mpa, outdoor is closed
Wind turbine is directly entered step d；
B, if high-pressure is more than 3.1Mpa and is less than 3.4Mpa, then a wind shelves operation is reduced, and hold with the wind shelves
Reforwarding row 30s, and enter step c；If high-pressure is greater than or equal to 3.4Mpa, outdoor fan is closed, is directly entered step
Rapid d；
C, step b is repeated, until outdoor fan completely closes, enters step d；
D, after outdoor fan is closed, detect the temperature of frequency-variable controller, if the temperature rise of frequency-variable controller to 75 DEG C, with
Most low wind file runs outdoor fan；
E, when meeting one of following two conditions, condition 1 is to drop to 65 DEG C at a temperature of frequency-variable controller, and condition 2 is high pressure pressure
Power rises to 3.4Mpa, then is re-closing off outdoor fan,
F, step d~e is repeated, until air-conditioner set is closed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510977161.0A CN105546731B (en) | 2015-12-23 | 2015-12-23 | The control method that residential central air- is heated in transition season |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510977161.0A CN105546731B (en) | 2015-12-23 | 2015-12-23 | The control method that residential central air- is heated in transition season |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105546731A CN105546731A (en) | 2016-05-04 |
| CN105546731B true CN105546731B (en) | 2018-07-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510977161.0A Active CN105546731B (en) | 2015-12-23 | 2015-12-23 | The control method that residential central air- is heated in transition season |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113739350B (en) * | 2021-09-23 | 2022-05-03 | 宁波奥克斯电气股份有限公司 | Low-temperature heating frequency conversion control method and device, storage medium and air conditioner |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1275700A (en) * | 2000-06-02 | 2000-12-06 | 海尔集团公司 | Improved refrigerating system for one driving multiple-unit air conditioner |
| CN102914025A (en) * | 2012-09-18 | 2013-02-06 | 宁波奥克斯电气有限公司 | Method for controlling direct current frequency conversion air-conditioner while operating in refrigeration mode |
| CN103807979A (en) * | 2014-02-28 | 2014-05-21 | 青岛海信日立空调系统有限公司 | Multi-union variable frequency air conditioner based on micro-channel heat exchanger and control method thereof |
| CN204176826U (en) * | 2014-10-14 | 2015-02-25 | 泰豪科技股份有限公司 | A kind of dual protection type high-temperature air conditioner unit |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7614249B2 (en) * | 2005-12-20 | 2009-11-10 | Lung Tan Hu | Multi-range cross defrosting heat pump system and humidity control system |
| WO2013123587A1 (en) * | 2012-02-22 | 2013-08-29 | Jocelyn Faubert | Perceptual-cognitive-motor learning system and method |
-
2015
- 2015-12-23 CN CN201510977161.0A patent/CN105546731B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1275700A (en) * | 2000-06-02 | 2000-12-06 | 海尔集团公司 | Improved refrigerating system for one driving multiple-unit air conditioner |
| CN102914025A (en) * | 2012-09-18 | 2013-02-06 | 宁波奥克斯电气有限公司 | Method for controlling direct current frequency conversion air-conditioner while operating in refrigeration mode |
| CN103807979A (en) * | 2014-02-28 | 2014-05-21 | 青岛海信日立空调系统有限公司 | Multi-union variable frequency air conditioner based on micro-channel heat exchanger and control method thereof |
| CN204176826U (en) * | 2014-10-14 | 2015-02-25 | 泰豪科技股份有限公司 | A kind of dual protection type high-temperature air conditioner unit |
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| Publication number | Publication date |
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| CN105546731A (en) | 2016-05-04 |
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