CN1614341A - Method for controlling air conditioner having multi-compressor - Google Patents
Method for controlling air conditioner having multi-compressor Download PDFInfo
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- CN1614341A CN1614341A CNA2004100453883A CN200410045388A CN1614341A CN 1614341 A CN1614341 A CN 1614341A CN A2004100453883 A CNA2004100453883 A CN A2004100453883A CN 200410045388 A CN200410045388 A CN 200410045388A CN 1614341 A CN1614341 A CN 1614341A
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- compression volume
- temperature
- compressor
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- operational mode
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- 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
- F25B49/025—Motor control arrangements
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- 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
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- 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
- F25B2400/00—General features or devices for refrigeration machines, plants or systems, combined heating and refrigeration systems or heat-pump systems, i.e. not limited to a particular subgroup of F25B
- F25B2400/07—Details of compressors or related parts
- F25B2400/075—Details of compressors or related parts with parallel compressors
- F25B2400/0751—Details of compressors or related parts with parallel compressors the compressors having different capacities
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- 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
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- 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
- F25B2600/025—Compressor control by controlling speed
- F25B2600/0251—Compressor control by controlling speed with on-off operation
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- 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
- F25B2700/00—Sensing or detecting of parameters; Sensors therefor
- F25B2700/21—Temperatures
- F25B2700/2104—Temperatures of an indoor room or compartment
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Air Conditioning Control Device (AREA)
Abstract
A method for controlling an air conditioner having a multi-compressors can improve capability of coping with a cooling load or a heating load, reduce energy loss and improve pleasantness. The method is achieved by pre-storing compressing capacity according to a temperature difference between a previous room temperature and a desired temperature and body adaptation time; changing the desired temperature when the body adaptation time elapses while the compressors are operated after the pre-stored compressing capacity has been changed based on a temperature difference between a current room temperature and the desired temperature; and re-changing the changed compressing capacity based on a temperature difference between a current room temperature and the changed desired-temperature.
Description
Technical field
The present invention relates to a kind of air-conditioner, particularly a kind of control has the method for the air-conditioner of multiple compressors.
Background technology
In general, hot-air in the air-conditioner cooling chamber or the cold air in the heating clamber.The structure of traditional air-conditioner with two compressors is described with reference to Fig. 1 hereinafter.Wherein, move this two compressors selectively according to the refrigeration duty in room.
Fig. 1 is the block diagram of the traditional air-conditioner structure with two compressors.
As shown in FIG., the air-conditioner with two compressors comprises the first compressor 18A and the second compressor 18B, and they move selectively according to room load respectively, to change compression volume; Condenser 1, it is used for being dispelled the heat by the first and second compressor 18A, 18B refrigerant compressed; Expansion valve 2, its cold-producing medium that is used for expanding from condenser 1 discharge; And evaporimeter 3, it is used to receive the cold-producing medium that is expanded by expansion valve 3, and produces cold air.The hypothesis first compressor 18A is the little compressor of compression volume below this paper, and the second compressor 18B is the big compressor of compression volume.The structure of the air-conditioner with two such compressors is described now.
To be connected the first compressor 18A and air inlet pipe 9,13 on the second compressor 18B at first, respectively is connected on the flexible pipe of telling from the air induction hose 4 that links to each other with evaporimeter 35,7.In addition, will be connected the first compressor 18A and blast pipe 11,14 on the second compressor 18B respectively is connected on the flexible pipe of telling from the exhaust hose 17 that links to each other with condenser 1 10,16.
Branching hose 5,7,10,16 is connected respectively on intake valve 6,8 and the air bleeding valve 12,15, by manually or by Control Component such as microcomputer or similar assembly etc. these valves of On/Off selectively.
Therefore, the air-conditioner with two compressors can be according to refrigeration duty, by the first compressor 18A or/and kind of refrigeration cycle is controlled in the operation of the second compressor 18B.That is to say, the capacity of compressor can change by following mode: when indoor refrigeration duty hour, only move the first compressor 18A, when indoor refrigeration duty is big, only move the second compressor 18B, when indoor refrigeration duty is maximum, move the first and second compressor 18A, 18B simultaneously.
Adopted air-conditioner recently with four compressors.The conventional operation process of this air-conditioner with four compressors is identical with the running of the air-conditioner of Fig. 1.Certainly, four compressors can be designed to have identical compression volume or be designed to and have different compression volumes.
Have in the method for air-conditioner of four compressors in control, by according to cooling load step by step (level by level) (10%) increase or the compression volume that reduces compressor is controlled internal temperature.For example, when air-conditioner was in refrigerating mode, if when internal temperature reaches the temperature of preferred temperature 0.5 degree that is lower than user preset, compressor moved a period of time being lower than under the situation of compression volume one grade the preceding.After operation a period of time, preferred temperature and internal temperature are compared once more.If internal temperature and preferred temperature inconsistent (being higher or lower than preferred temperature), compressor is to be higher or lower than the compression volume operation of compression volume one grade the preceding.
Yet there is following defective in the method for traditional control air-conditioner.
In the method for the control air-conditioner of existing invention, the compression volume of compressor increases step by step according to inner cooling load or heating load or reduces.Therefore, air-conditioner adapts to cooling load or heating load lentamente, thereby the energy loss of air-conditioner increases.For example, suppose that the total compression capacity is 100%, when air-conditioner is attempted the compression volume of compressor when 70% is reduced to 50%, at first be reduced to 60%, and then be reduced to 50% from 60% from 70% compression volume.For this reason, the speed that air-conditioner adapts to cooling load or heating load is slow, thereby the energy loss of air-conditioner increases.
Existing air-conditioner with multiple compressors has been disclosed in No. 6519957, the United States Patent (USP) of authorizing on February 18th, 2003 in detail.
Summary of the invention
So, an object of the present invention is to provide the method that a kind of control has the air-conditioner of multiple compressors, this method is by improving ability and the reduction energy loss that adapts to cooling load or heating load according to indoor temperature the preceding and temperature difference pre-stored one compression volume between the preferred temperature that is set by the user; And the compression volume that changes described pre-stored according to the temperature difference between current indoor temperature and the preferred temperature.
Another object of the present invention provides the method that a kind of control has the air-conditioner of multiple compressors, this method is by according to indoor temperature the preceding, temperature difference between the preferred temperature and body adaptation time (body adaptation time) pre-stored one compression volume the preceding, according to body adaptation time change preferred temperature, and change the compression volume of described pre-stored, thereby improve comfort level according to the temperature difference between current indoor temperature and the preferred temperature that changed.
In order to realize these and other advantage, according to purpose of the present invention and the following specific and description of summarizing, the method that is used to control the air-conditioner with multiple compressors that is provided comprises: according to the step of the compression volume of the temperature difference pre-stored compressor between indoor temperature the preceding and the preferred temperature that is set by the user; And the step that changes the compression volume of described pre-stored according to current indoor temperature and described preferred temperature.
In order to realize these and other advantage, according to purpose of the present invention and the following specific and description of summarizing, the method that is used to control the air-conditioner with multiple compressors that is provided comprises: according to the step of the compression volume of the temperature difference pre-stored compressor between indoor temperature the preceding and the preferred temperature that is set by the user; When air-conditioner is in refrigerating mode and current indoor temperature and reaches the minimum lower limit temperature that is lower than preferred temperature, the compression volume of described pre-stored is changed over the compression volume that is used to keep described lower limit temperature, make the step of compressor with the compression volume operation after changing; After compressor moves described Preset Time according to the compression volume that has changed, detect the temperature difference between current indoor temperature and the preferred temperature, according to detected temperature difference the described compression volume that has changed is changed to default compression volume again, and the step that compressor is moved with the compression volume that changes again.
In order to realize these and other advantage, and according to purpose of the present invention and the following specific and description of summarizing, the method that is used to control the air-conditioner with multiple compressors that is provided comprises: according to the step of the compression volume of store compressed machine in advance of the temperature difference between indoor temperature the preceding and the preferred temperature that is set by the user; When air-conditioner is under the refrigerating mode and current indoor temperature when reaching the lower limit temperature that is lower than preferred temperature, the compression volume of described pre-stored is changed over the compression volume that is used to keep described lower limit temperature, and make the step of compressor with the compression volume operation after changing; After compressor moves described Preset Time with the compression volume that has changed, detect the temperature difference between current indoor temperature and the preferred temperature, according to detected temperature difference the described compression volume that has changed is changed to default compression volume again, and the step that compressor is moved with the compression volume that changes again; If identical with compression volume corresponding to making compressor corresponding to maximum operational mode by the compression volume of the present mode of operation of the compression volume that changed operation, the step that compressor is moved by maximum operational mode; If corresponding to the compression volume of present mode of operation less than compression volume corresponding to maximum operational mode, to compare corresponding to the compression volume of present mode of operation with corresponding to compression volume in preceding operational mode, if less than corresponding to compression volume, make compressor by described step in preceding operational mode operation in preceding operational mode corresponding to the compression volume under the present mode of operation; If corresponding to the compression volume under the present mode of operation greater than corresponding to compression volume in preceding operational mode, make the step of compressor by the present mode of operation operation, wherein, described maximum operational mode is to make the pattern of described compressor with the total compression capacity operation of described multiple compressors, and described is to make the pattern of described compressor with the compression volume operation of pre-stored in preceding operational mode.
In order to realize these and other advantage, and according to purpose of the present invention and the following specific and description of summarizing, the method that is used to control the air-conditioner with multiple compressors that is provided comprises: according to the step of indoor temperature and preferred temperature and body adaptation time pre-storing compressing capacity the preceding; Change the compression volume of described pre-stored according to the temperature difference between current indoor temperature and the preferred temperature, when compressor is with the compression volume operation that changed simultaneously through the described body adaptation time, change the step of described preferred temperature; And the step that changes the described compression volume that has changed according to the temperature difference between current indoor temperature and the preferred temperature that changed again.
From describe the present invention, will more clearly understand described and other purpose, characteristics, aspect and advantage of the present invention below in conjunction with accompanying drawing.
Description of drawings
For the accompanying drawing that the invention provides further understanding and formation the application part shows embodiments of the present invention, they and specification word segment one are used from explains principle of the present invention.
In the accompanying drawing:
Fig. 1 schematically shows traditional air-conditioner structure with two compressors;
That Fig. 2 shows is traditional, increase step by step or the compression volume control that reduces compressor has the chart of method of the air-conditioner of multiple compressors according to the temperature difference between internal temperature and the preferred temperature; And
Fig. 3 is the flow chart that is used to control the method for the air-conditioner with multiple compressors of the present invention.
The specific embodiment
Describe the preferred implementation of method that control has the air-conditioner of multiple compressors in detail hereinafter with reference to Fig. 3, this method is by changing described preferred temperature according to formerly indoor temperature and the temperature difference between the preferred temperature and body adaptation time pre-storing compressing capacity, when making compressor operating after the compression volume that changes pre-stored through the described body adaptation time simultaneously according to current indoor temperature and described preferred temperature; And change the compression volume that has changed again according to the temperature difference between described current indoor temperature and the preferred temperature that changed and can improve the ability that adapts to cooling load or heating load, reduce energy loss and improve indoor comfort level.
Fig. 3 is the method flow diagram that is used to control the air-conditioner with multiple compressors of embodiment of the present invention.
As shown in Figure 3, the method that is used to control the air-conditioner with multiple compressors of embodiment of the present invention comprises: when previous stage was controlled internal temperature, pre-stored was according to the step of the compression volume of temperature difference between indoor temperature the preceding and the preferred temperature that is set by the user and the compressor of body adaptation time (person adapts to the required time of a certain temperature); When the user selects refrigerating mode and current indoor temperature to reach to be lower than the lower limit temperature of the preferred temperature that the user sets, the compression volume of described pre-stored is changed over default compression volume keeping described lower limit temperature, and make the step of compressor with the described compression volume operation that has changed; After described compressor has moved the described default time with the described compression volume that has changed, detect between described current indoor temperature and the described preferred temperature temperature difference so that compressor move with the optimal compression capacity, again the described compression volume that has changed is changed to default compression volume according to the temperature difference that is detected, and make the step of described compressor with the described compression volume operation that changes again.
For example, suppose to form by four compressors by the described multiple compressors that the mode of air conditioning is installed, the total compression capacity of described four compressors is 100%, wherein the compression volume of two compressors respectively accounts for 20%, and the compression volume of two compressors accounts for 30% respectively, the user selects refrigerating mode, and compression volume accounts for 20% two compressors and compression volume and accounts for 30% compressor operation (compressor is with the compression volume operation of storage in advance).In this case, when current indoor temperature in running reaches the temperature (lower limit temperature) that is lower than preferred temperature 0.5 degree, make a compressor that accounts for 20% compression volume out of service, make another compressor that accounts for 20% compression volume and the described Preset Time of compressor operating (for example, three minutes) that accounts for 30% compression volume.Afterwards, detect the temperature difference between current indoor temperature and the preferred temperature, the compression volume that has changed according to detected temperature official post changes to default compression volume.That is to say, when four compressors, the total compression capacity of described four compressors is 100%, accounts for the compression volume that 30% compressor operating changes described multiple compressors by making two compression volumes account for 20% compressor and two compression volumes selectively.
In addition, the method that described control has the air-conditioner of multiple compressors also comprises: change the described compression volume that has changed again and when compressor during with the compression volume operation that changes again, if corresponding to make described compressor with the compression volume of the present mode of operation of the described compression volume operation that changes again with corresponding to the compression volume of maximum operational mode when identical, the step that described compressor is moved by maximum operational mode; If corresponding to the compression volume of described present mode of operation less than corresponding to the compression volume under the maximum operational mode time, to and compare corresponding to the compression volume under the described present mode of operation corresponding to the compression volume under preceding operational mode, if less than corresponding to described compression volume, make compressor by described step in preceding operational mode operation in preceding operational mode corresponding to the compression volume of present mode of operation; If greater than corresponding to described compression volume under preceding operational mode, described compressor press the step that present mode of operation moves corresponding to the compression volume of present mode of operation.Here, described operational mode is used to make the compression volume operation of compressor to have changed, described maximum operational mode is used to make total compression capacity (100%) operation of described compressor with described multiple compressors, describedly be used to make of the compression volume operation (for example, 70%) of described compressor with storage in advance in preceding operational mode.
The method that described according to an embodiment of the present invention control has the air-conditioner of multiple compressors also comprises: the compression volume that will change again according to described detected temperature difference changes to default compression volume, when having passed through that the body adaptation time, compressor was by the compression volume operation that changes again simultaneously, set a new preferred temperature by changing preferred temperature, detect described new preferred temperature and the temperature difference between the current indoor temperature, current compression volume is changed to default compression volume and the compressor step with described altered compression volume operation according to detected temperature difference.
Below, the control of describing in detail is according to the embodiment of the present invention had the method for the air-conditioner of multiple compressors.
At first, when formerly the stage is controlled indoor temperature, storage in advance be used to reduce indoor temperature the preceding and the preferred temperature that is set by the user between the compression volume and body adaptation time (S1) of multiple compressors of temperature difference.
According to the temperature difference between indoor temperature and the preferred temperature compression volume of described compressor is changed to default compression volume.But, suppose four compressors have been installed on the air-conditioner preferred embodiment that in order to explain among the present invention the total compression capacity of four compressors is 100%, described default compression volume is 70%.In addition, the described body adaptation time is meant that the person adapts to the time that a certain assigned temperature spends, and this time is slightly different according to individual's situation.But say that at large descended 20～40 minutes when human body is exposed to a certain assigned temperature (for example 20 degree), human body can adapt to described assigned temperature.In view of the above, more comfortable in order to make the user, preferred temperature of change in preferred per 30 minutes.
Thereafter, when the user selected refrigerating mode (S2), described compressor was with compression volume (for example 70%) operation (S3) of storage in advance.
When compressor moves with the compression volume of storage in advance, when current indoor temperature reaches the lower limit temperature that is lower than the current preferred temperature that is set by the user (S4), in order to keep described lower limit temperature that the described compression volume of storage is in advance changed to default compression volume (for example, 50%) (S5).At this, described lower limit temperature approaches the preferred temperature of user's setting and spends (for example, 0.5 degree) less than 1.For example, suppose that preferred temperature is that 20 degree and lower limit temperature are 0.5 degree, when indoor temperature is 19.5 when spending, compressor is by default compression volume (for example, total compression capacity 50%) operation, to keep 19.5 degree.
Move back of described default time (for example, 3 minutes) (S6) at compressor by the compression volume that has changed (for example, 50%), detected the temperature difference (S7) between current indoor temperature and the preferred temperature.
Thereafter, described temperature difference and a reference value between described current indoor temperature and the described preferred temperature are compared (S8), according to comparative result the described compression volume that has changed is changed to default compression volume, and make the compression volume operation of compressor to change again.That is to say, if the temperature difference between described current indoor temperature and the described preferred temperature is greater than first reference value (for example, 2 degree), the described compression volume that has changed (as 50%) (for example increases two-stage, 20%), then compressor by the compression volume operation that has increased.
If the temperature difference between described current indoor temperature and the preferred temperature less than first reference value greater than second a reference value (for example, 1 degree), the described compression volume that has changed (for example 50%) increases one-level (for example, 10%), and compressor is by the compression volume operation that has increased.
In addition, if the temperature difference between described current indoor temperature and the preferred temperature is kept the described compression volume that has changed (for example, 50%) less than second a reference value (for example, 1 degree) and greater than the 3rd a reference value (for example, 0 degree), compressor is by this operation.Temperature difference between described current indoor temperature and preferred temperature is less than the 3rd a reference value (for example, 0 degree), and described compression volume (for example, 50%) then reduces one-level (for example, 10%), and compressor is with the compression volume operation (S9) of described reduction.
For example, when selecting refrigerating mode and indoor temperature to reach, the user is lower than the temperature that preferred temperature 0.5 is spent, simultaneously when compressor during with 70% the compression volume operation of storage in advance, described compression volume 70% changes to compression volume 50%, the compression volume 50% operation described default time (for example, three minute) of compressor to have changed.Thereafter, when the temperature difference between described current indoor temperature and the preferred temperature was spent greater than 2, described compression volume 50% increased by 20%, the compression volume operation of compressor to have increased.When the temperature difference between described current indoor temperature and the preferred temperature is 1～2 when spending, described compression volume 50% increases by 10%, the compression volume operation of compressor to have increased.When the temperature difference between described current indoor temperature and the preferred temperature is 0～1 when spending, keep described compression volume 50%.When described current indoor temperature was lower than preferred temperature, compressor shut down, or described compression volume 50% is reduced, and the compression volume operation of compressor to have reduced.Preset the compression volume that changes according to the temperature difference between indoor temperature and the preferred temperature according to the compression volume ratio of platform number that is installed in the compressor in the air-conditioner and compressor herein.
Thereafter, when corresponding to make compressor with the compression volume of the present mode of operation of the compression volume that changed operation with when identical (the maximum compression capacity (100%) of multiple compressors), compressor is moved corresponding to the compression volume of maximum operational mode by maximum operational mode.In addition, corresponding to the compression volume of present mode of operation less than corresponding to the compression volume under the maximum operational mode time, will corresponding to the compression volume of present mode of operation with compare corresponding to compression volume in preceding operational mode.If less than corresponding to the compression volume under preceding operational mode, make compressor by in preceding operational mode operation corresponding to the compression volume of present mode of operation.In addition, greater than corresponding to when the compression volume of preceding operational mode, make compressor corresponding to the compression volume of present mode of operation by current operational mode operation.
In view of the above, in the present invention, formerly the stage is to indoor temperature when controlled, according to indoor temperature and the temperature difference pre-storing compressing capacity between the preferred temperature the preceding the preceding, change the compression volume of described pre-stored then according to the temperature difference between current indoor temperature and the current preferred temperature, can change the compression volume of multiple compressors rapidly and make the compression volume operation of compressor to have changed.For example, when compression volume when 70% is reduced to 50%, can make described compression volume 70% directly be reduced to compression volume 50%.Therefore, air-conditioner of the present invention can adapt to cooling load and heating load rapidly, and can reduce energy loss.
Afterwards, the described compression volume that has changed is changed to default compression volume again, make compressor by the compression volume operation (S9) that changes again according to detected temperature difference.Then, after the time (S10), change described preferred temperature (S11) through body adaptation by making described preferred temperature improve a preset value (for example, 1 degree) or make described preferred temperature reduce a preset value.Detect the temperature difference between described preferred temperature that has changed and the current indoor temperature, described current compression volume is changed over default compression volume, make compressor by the compression volume operation that has changed according to detected temperature difference.
For example, the compression volume that will change according to detected temperature difference changes to default compression volume again, makes the compression volume operation (S9) of compressor to change again.Through body adaptation time (30 minute) after, make the preferred temperature that be set by the user increase by 1 degree set a new preferred temperature thereafter.Detect described new preferred temperature and the temperature difference between the current indoor temperature, change to the compression volume that described current compression volume is default, make compressor by the compression volume operation that has changed according to detected described temperature difference.
In addition, (30 minutes), compressor operation after current compression volume changes have simultaneously been passed through the body adaptation time once more, change described new preferred temperature by described new preferred temperature being improved or reducing by 1 degree, and detect described new preferred temperature that has changed and the temperature difference between the current indoor temperature.So, according to described detected temperature difference described current compression volume is changed to default compression volume, and makes compressor by the compression volume operation that has changed.These processes (S7～S9) repeat.That is, whenever pass through the body adaptation time, just can change the preferred temperature that is set by the user, therefore can improve comfort level.
When formerly the stage is controlled indoor temperature according to the compression volume (S1) of temperature difference pre-stored one compressor between indoor temperature and the preferred temperature.Thereafter, compressor is with the compression volume of pre-stored (for example simultaneously for the ceiling temperature of selecting heating mode and current indoor temperature to reach to be higher than the preferred temperature that is set by the user as the user (S13), when 70%) moving (S12), in order to keep described ceiling temperature, make the compression volume of described pre-stored change to default compression volume (S14), and make compressor by the compression volume operation that has changed.That is, after compressor is by the compression volume operation that has changed, carry out described process (S6～S11) (S15).
As mentioned above, the method that has the air-conditioner of multiple compressors according to traditional control, by according to indoor temperature the preceding and the temperature difference pre-storing compressing capacity between the preferred temperature the preceding, change the compression volume of described pre-stored then according to the temperature difference between current indoor temperature and the preferred temperature, can improve the ability that adapts to cooling load and heating load.
In addition, according to the method that is used to control air-conditioner of the present invention with multiple compressors, by according to indoor temperature the preceding and the temperature difference pre-storing compressing capacity between the preferred temperature the preceding, the compression volume that changes described pre-stored according to the temperature difference between current indoor temperature and the preferred temperature can reduce the energy loss of air-conditioner then.
In addition, according to the method that is used to control air-conditioner of the present invention with multiple compressors, by according to indoor temperature the preceding and temperature difference between the preferred temperature and body adaptation time pre-storing compressing capacity the preceding, change described preferred temperature according to the body adaptation time then, and improve comfort level according to the compression volume that the temperature difference between described current indoor temperature and the preferred temperature that changed changes described pre-stored.
Under the situation that does not break away from design of the present invention and essential feature; the present invention can have numerous embodiments; it will be appreciated that; remove nonspecific; described embodiment is not subjected to any detailed restriction recited above; and should in the design of claims of the present invention and protection domain, do wideer explanation; so, fall in the border of claim or the compass or fall into all improvement in the equivalency range of these borders or boundary and claims scope required for protection that modification all is included in the application in.
Claims (20)
1. a control has the method for the air-conditioner of multiple compressors, comprising:
According to the step of the compression volume of indoor temperature and the temperature difference pre-stored compressor of an expectation between the temperature that be set by the user the preceding; And
Change the step of the compression volume of described pre-stored according to a current indoor temperature and described preferred temperature.
2. the method for claim 1, wherein, also comprise the compression volume that changes described pre-stored according to the temperature difference between described current indoor temperature and the described preferred temperature, set a new preferred temperature by changing described preferred temperature when simultaneously compressor is with the compression volume operation of this change through the body adaptation time, the step that changes the described compression volume that has changed again according to described new preferred temperature and the temperature difference between the current indoor temperature.
3. method as claimed in claim 2, wherein, no matter when the process body adaptation time just can make described preferred temperature improve or reduce a preset value.
4. method as claimed in claim 3, wherein, described preset value is 1 degree.
5. method as claimed in claim 3, wherein, the described body adaptation time is meant that the person adapts to the time that a temperature is spent, this time is 20～40 minutes.
6. the method for claim 1, wherein, change the compression volume of described pre-stored by the compressor operating that makes compressor according to described current indoor temperature and temperature difference between the described preferred temperature selectively and have different compression volumes with identical compression volume.
7. the method for claim 1, wherein, the step of the compression volume of described change pre-stored is to change the compression volume of described pre-stored to improve the step of the speed that adapts to cooling load and heating load according to the temperature difference between described current indoor temperature and the described preferred temperature.
8. the step of the compression volume of the method for claim 1, wherein described change pre-stored comprises:
When described air-conditioner is in refrigerating mode and described current indoor temperature and reaches the lower limit temperature that is lower than described preferred temperature, make the compression volume of described pre-stored change to the compression volume that is used to keep described lower limit temperature, and make the step of described compressor with this compression volume that has changed operation; And
After described compressor moves described Preset Time by the described compression volume that has changed, detect the temperature difference between described current indoor temperature and the described preferred temperature, according to this detected temperature difference the described compression volume that has changed is changed to default compression volume again, and the step that described compressor is moved with the compression volume that changes again.
9. the step of the compression volume of the method for claim 1, wherein described change pre-stored comprises:
When air-conditioner is in heating mode and described current indoor temperature and reaches the ceiling temperature that is higher than described preferred temperature, the compression volume of described pre-stored is changed to the compression volume that is used to keep described ceiling temperature, and make the step of described compressor with this compression volume that has changed operation; And
After described compressor moves described Preset Time with the described compression volume that has changed, detect the temperature difference between described current indoor temperature and the described preferred temperature, again the described compression volume that has changed is changed to default compression volume according to this detected temperature difference, and the step that described compressor is moved with the compression volume that changes again.
10. the method for claim 1, wherein according to the default described compression volume of the Capacity Ratio that is installed in interior described compression board number of described air-conditioner and described compressor.
11. the method for claim 1, wherein also comprise:
If corresponding to the compression volume of the present mode of operation of the compression volume operation that described compressor has been changed with described with identical corresponding to the compression volume under the maximum operational mode, the step that described compressor is moved by maximum operational mode;
If corresponding to the compression volume under the described present mode of operation less than corresponding to the compression volume under the described maximum operational mode, relatively corresponding to the compression volume under the described present mode of operation and corresponding to the compression volume under preceding operational mode, if less than corresponding to described compression volume under preceding operational mode, make described compressor with described step in preceding operational mode operation corresponding to the compression volume under the described present mode of operation;
If greater than corresponding to described compression volume under preceding operational mode, make the step of described compressor with described present mode of operation operation corresponding to the compression volume under the described present mode of operation;
Wherein, described maximum operational mode is to make the pattern of described compressor with the total compression capacity operation of multiple compressors, and described is to make the pattern of compressor with the compression volume operation of pre-stored in preceding operational mode.
12. a method that is used to control the air-conditioner with multiple compressors comprises:
According to the step of the compression volume of the temperature difference pre-stored compressor between the preferred temperature that is set by the user of indoor temperature and the preceding;
When described air-conditioner under refrigerating mode and current indoor temperature reach one when being lower than the lower limit temperature of described preferred temperature, the compression volume of described pre-stored is changed to the compression volume that is used to keep described lower limit temperature, and make the step of described compressor with this compression volume that has changed operation; And
After described compressor moves described Preset Time with the described compression volume that has changed, detect the temperature difference between current indoor temperature and the described preferred temperature, again the described compression volume that has changed is changed to default compression volume according to this detected temperature difference, and make the step of described compressor with the described compression volume operation that changes again.
13. method as claimed in claim 12 wherein, also comprises:
Change the compression volume that this has changed once more, when described compressor moves with the described compression volume that changes again simultaneously through the body adaptation time, by described preferred temperature being improved or reducing a preset value and set a new preferred temperature, detect described new preferred temperature and the temperature difference between the current indoor temperature, again the described compression volume that changes is once more changed to default compression volume according to this detected temperature difference, and make the step of described compressor with this compression volume that has changed operation.
14. method as claimed in claim 12 wherein, describedly changes this compression volume that has changed again and makes described compressor further comprising the steps of with the step of the compression volume operation that changes again:
If the described temperature difference between described current indoor temperature and the described preferred temperature during greater than a first reference value, increases the step of the described compression volume that has changed according to a first reference value;
If the described temperature difference between described current indoor temperature and the described preferred temperature during less than described first reference value and greater than one second a reference value, increases the step of the described compression volume that has changed according to one second a reference value;
If the described temperature difference between described current indoor temperature and the described preferred temperature during less than described second a reference value and greater than one the 3rd a reference value, is kept the step of the described compression volume that has changed;
If the temperature difference between described current indoor temperature and the described preferred temperature during less than described the 3rd a reference value, reduces the step of the described compression volume that has changed by described first reference value.
15. method as claimed in claim 14, wherein, described first reference value is 2 degree, and described second a reference value is 1 degree, and described the 3rd a reference value is 0 degree.
16. method as claimed in claim 12, wherein, according to the default described compression volume of the Capacity Ratio of platform number that is installed in the compressor in the described air-conditioner and described compressor.
17. method as claimed in claim 12 wherein, also comprises:
If identical with compression volume corresponding to making described compressor corresponding to maximum operational mode with the compression volume of the present mode of operation of the compression volume that changed operation, the step that described compressor is moved by described maximum operational mode;
If corresponding to the compression volume of described present mode of operation less than compression volume corresponding to described maximum operational mode, to corresponding to the compression volume of described present mode of operation with compare corresponding to described compression volume in preceding operational mode, if less than corresponding to described compression volume, make described compressor by described step in preceding operational mode operation in preceding operational mode corresponding to the compression volume of described present mode of operation; And
If greater than corresponding to described compression volume under preceding operational mode, make the step of described compressor by described present mode of operation operation corresponding to the compression volume under the described present mode of operation,
Wherein, described maximum operational mode is the pattern of described compressor with the total compression capacity operation of described multiple compressors of instigating, and described is to instigate the pattern of described compressor with the compression volume operation of pre-stored in preceding operational mode.
18. a method that is used to control the air-conditioner with multiple compressors comprises:
According to the step of indoor temperature and expectation temperature and a body adaptation time pre-storing compressing capacity the preceding;
Change the described compression volume of storage in advance according to the temperature difference between a current indoor temperature and the described preferred temperature, change the step of described preferred temperature through the body adaptation time when compressor is with this compression volume that has changed operation simultaneously; And
Change the step of the described compression volume that has changed once more according to the temperature difference between a current indoor temperature and the described preferred temperature that has changed.
19. a method that is used to control the air-conditioner with multiple compressors comprises:
According to the step of the compression volume of the temperature difference pre-stored compressor between the preferred temperature that is set by the user of indoor temperature and the preceding;
When described air-conditioner is under the refrigerating mode and described current indoor temperature when reaching a lower limit temperature that is lower than described preferred temperature, the compression volume of described pre-stored is changed to the compression volume that is used to keep described lower limit temperature, and the step that described compressor is moved with the compression volume that has changed;
After described compressor moves described Preset Time with the described compression volume that has changed, detect the temperature difference between described current indoor temperature and the described preferred temperature, according to this detected temperature difference the described compression volume that has changed is changed to default compression volume again, and the step that described compressor is moved with the compression volume that changes again;
If corresponding to make described compressor with the compression volume of the present mode of operation of the compression volume that changed operation with corresponding to the compression volume under the maximum operational mode when identical, the step that described compressor is moved by described maximum operational mode;
If corresponding to the compression volume of described present mode of operation less than compression volume corresponding to described maximum operational mode, to corresponding to the compression volume of described present mode of operation with compare corresponding to compression volume in preceding operational mode, if less than corresponding to described compression volume, make described compressor by described step in preceding operational mode operation in preceding operational mode corresponding to the compression volume under the described present mode of operation; With
If greater than corresponding to described compression volume under preceding operational mode, make the step of described compressor by described present mode of operation operation corresponding to the compression volume of described present mode of operation;
Wherein, described maximum operational mode is the pattern of described compressor with the total compression capacity operation of described multiple compressors of instigating, and described is to instigate the pattern of described compressor with the compression volume operation of pre-stored in preceding operational mode.
20. method as claimed in claim 19 wherein, also comprises:
Change the described compression volume that has changed again, when described compressor moves with the described compression volume that changes again simultaneously through the default body adaptation time, by described preferred temperature being improved or reducing a preset value and set a new preferred temperature, detect described new preferred temperature and the temperature difference between the current indoor temperature, according to this detected temperature difference the described compression volume that changes is once more changed to default compression volume again, and make the step of described compressor with the described compression volume operation that has changed.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR77617/2003 | 2003-11-04 | ||
| KR1020030077617A KR100556772B1 (en) | 2003-11-04 | 2003-11-04 | Room temperature control method for air conditioner equipped with multi compressor |
| KR77617/03 | 2003-11-04 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1614341A true CN1614341A (en) | 2005-05-11 |
| CN100523668C CN100523668C (en) | 2009-08-05 |
Family
ID=34545731
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100453883A Expired - Fee Related CN100523668C (en) | 2003-11-04 | 2004-05-21 | Method for controlling air conditioner having multi-compressor |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US20050092003A1 (en) |
| KR (1) | KR100556772B1 (en) |
| CN (1) | CN100523668C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100523667C (en) * | 2003-11-04 | 2009-08-05 | Lg电子株式会社 | Method for controlling air conditioner having multi-compressor |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100712928B1 (en) * | 2005-08-24 | 2007-05-02 | 엘지전자 주식회사 | Compressure Operate Select Method For Dual Type Unitary Air Conditioner |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3605A (en) * | 1844-05-30 | Improvement in the mode of obtaining wrought-iron directly from the ore | ||
| US233838A (en) * | 1880-11-02 | Wagon-rack | ||
| US3610A (en) * | 1844-06-05 | And thos | ||
| US3606A (en) * | 1844-05-30 | Peter von schmidt | ||
| US4384462A (en) * | 1980-11-20 | 1983-05-24 | Friedrich Air Conditioning & Refrigeration Co. | Multiple compressor refrigeration system and controller thereof |
| JP3154934B2 (en) * | 1994-12-01 | 2001-04-09 | 松下電器産業株式会社 | Temperature control device for cooling and heating equipment |
| IL116764A (en) * | 1996-01-15 | 2001-01-11 | Acclim Line Ltd | Central air conditioning system |
| KR100396849B1 (en) * | 2001-03-26 | 2003-09-03 | 엘지전자 주식회사 | Method to control air conditioner with multi-compressor |
| KR100484800B1 (en) * | 2002-06-19 | 2005-04-22 | 엘지전자 주식회사 | Compressor's Operating Method in Air Conditioner |
| CN1250925C (en) * | 2002-10-16 | 2006-04-12 | 广东科龙电器股份有限公司 | Twin compressor room air conditioner and its control method |
| KR100471453B1 (en) * | 2002-11-22 | 2005-03-08 | 엘지전자 주식회사 | a heat pump system and a linear expansion valve's control method for the same |
| KR100457569B1 (en) * | 2002-11-22 | 2004-11-18 | 엘지전자 주식회사 | a linear expansion valve's control method for a heat pump system |
| KR100517600B1 (en) * | 2002-12-05 | 2005-09-28 | 엘지전자 주식회사 | A warming drive method of air-conditioner |
| KR100505231B1 (en) * | 2002-12-10 | 2005-08-03 | 엘지전자 주식회사 | A compressor driving method of air-conditioner having multi-compressor |
| KR20040050477A (en) * | 2002-12-10 | 2004-06-16 | 엘지전자 주식회사 | An air-condition system |
| KR100465723B1 (en) * | 2002-12-20 | 2005-01-13 | 엘지전자 주식회사 | A cooling drive method of air-conditioner |
| KR100556770B1 (en) * | 2003-11-04 | 2006-03-10 | 엘지전자 주식회사 | Air cooling driving control method for air conditioner equipped with inverter compressor and regular velocity compressor |
| KR100556771B1 (en) * | 2003-11-04 | 2006-03-10 | 엘지전자 주식회사 | Room temperature control method for air conditioner equipped with multi compressor |
-
2003
- 2003-11-04 KR KR1020030077617A patent/KR100556772B1/en active IP Right Grant
-
2004
- 2004-04-21 US US10/828,208 patent/US20050092003A1/en not_active Abandoned
- 2004-05-21 CN CNB2004100453883A patent/CN100523668C/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100523667C (en) * | 2003-11-04 | 2009-08-05 | Lg电子株式会社 | Method for controlling air conditioner having multi-compressor |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20050042956A (en) | 2005-05-11 |
| CN100523668C (en) | 2009-08-05 |
| US20050092003A1 (en) | 2005-05-05 |
| KR100556772B1 (en) | 2006-03-10 |
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