CN109210715A - Air conditioner and its compressor control method and control device - Google Patents
Air conditioner and its compressor control method and control device Download PDFInfo
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- CN109210715A CN109210715A CN201810967216.3A CN201810967216A CN109210715A CN 109210715 A CN109210715 A CN 109210715A CN 201810967216 A CN201810967216 A CN 201810967216A CN 109210715 A CN109210715 A CN 109210715A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/86—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling compressors within refrigeration or heat pump circuits
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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
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Abstract
The invention discloses a kind of air conditioner and its compressor control methods and control device, the described method includes: circulation executes following winding switching control processes: calculating the temperature difference in real time between machine leaving air temp and interior machine leaving air temp target value, the machine outlet air temperature difference in real time is obtained, the machine outlet air temperature difference interior in real time is made comparisons with the first setting outlet air temperature difference threshold；If the machine outlet air temperature difference interior in real time is not less than the first setting outlet air temperature difference threshold, the winding for controlling compressor is triangle connection type；If the machine leaving air temp interior in real time is less than the first setting outlet air temperature difference threshold, the winding for controlling compressor is star-like connection mode.With the application of the invention, being able to ascend the overall operation performance of air conditioner.
Description
Technical field
The invention belongs to air-conditioning technique fields, specifically, be to be related to air conditioner and its control, more specifically,
It is to be related to air conditioner and its compressor control method and control device.
Background technique
Existing transducer air conditioning by being adjusted to compressor operating frequency, have it is more accurate than air-conditioner with fixed frequency temperature control,
The advantage of the few, low noise of power consumption etc..For compressor, there is star-like connection mode and triangles for internal winding connection
Shape connection type, when compressor runs same frequency, compressor efficiency corresponding to different winding connections is endless
Exactly the same.The winding connection of major part compressor in air conditioner is after factory it has been determined that in the process of running at present
It cannot change, under certain running frequencies, compressor efficiency is not optimal under the winding connection of this determination, therefore,
The optimal of efficiency cannot be reached in entire operation of air conditioner frequency range.
To solve the problems, such as that compressor is non-optimal in whole service frequency range internal efficiency, occurring can be in operational process
The technology of middle adjustment compressor winding connection.For example, the Chinese patent application of Publication No. CN107395093A proposes
A kind of air conditioner, the air conditioner include compressor, and compressor includes control circuit, in compressor low-frequency operation, control
One end of each winding of circuit control compressor links together, and forms star-like connection mode；In the operation of compressor high frequency, control
The head and the tail of all windings of circuit control compressor processed connect, and form triangle connection type.In turn, control circuit is according to compressor
Running frequency control winding connection type switches between star and triangle, to improve operational efficiency.
It in the above-described techniques, is to influence compressor according to the switching of compressor operating frequency control winding connection type
This direct factor of the frequency of operational efficiency is the most directly, effectively for raising efficiency as control condition.But
It is that the main function of air conditioner is for adjusting indoor environment, wherein most important function is to adjust indoor environment temperature.Merely
According to the switching of compressor frequency control winding connection type, although compressor operational efficiency can be improved, do not ensure that
The comfort of human body in indoor environment.Also, when switching winding connection, generally it is required to compressor and first shuts down, then
Switch again, if frequency variation is frequently, if frequent switching winding connection, high frequent is needed to shut down, this will be to room
The comfort of interior environment causes very big influence.To reduce by compressor efficiency is promoted and change using existing way
The effect of kind air conditioner overall performance.
Summary of the invention
The object of the present invention is to provide a kind of cooler compressor control method and control devices, promote the entirety of air conditioner
Runnability.
For achieving the above object, control method provided by the invention, which adopts the following technical solutions, is achieved:
A kind of cooler compressor control method, which comprises
Circulation executes following winding switching control processes:
The temperature difference in real time between machine leaving air temp and interior machine leaving air temp target value is calculated, the machine outlet air temperature difference in real time is obtained,
The machine outlet air temperature difference interior in real time is made comparisons with the first setting outlet air temperature difference threshold；The machine leaving air temp interior in real time is real-time
Interior machine air outlet temperature or in real time interior machine coil temperature；
If the machine outlet air temperature difference interior in real time is not less than the first setting outlet air temperature difference threshold, the winding for controlling compressor is three
Angle connection mode；
If the machine leaving air temp interior in real time is less than the first setting outlet air temperature difference threshold, the winding for controlling compressor is star
Connection type.
Preferably, the method also includes: during the winding switching control,
While the winding for controlling compressor is triangle connection type, the running frequency for controlling compressor is faced not less than setting
Boundary's frequency；
While the winding for controlling compressor is star-like connection mode, the running frequency for controlling compressor is less than the setting and faces
Boundary's frequency.
Preferably, the method also includes:
If the real-time interior machine outlet air temperature difference goes out not less than the first setting outlet air temperature difference threshold, then the machine interior in real time
Wind-warm syndrome difference and the second setting outlet air temperature difference threshold；The second setting outlet air temperature difference threshold is greater than the first setting outlet air temperature difference
Threshold value；
If the machine outlet air temperature difference interior in real time is not less than the first setting outlet air temperature difference threshold and no more than second setting
Outlet air temperature difference threshold goes out wind-warm syndrome based on the machine interior in real time while the winding for controlling compressor is triangle connection type
The running frequency of difference adjustment compressor.
Preferably, the method also includes:
It is three in the winding of control compressor if the machine outlet air temperature difference interior in real time is greater than the second setting outlet air temperature difference threshold
While Angle connection mode, compressor is controlled to fix running frequency operation.
Preferably, the method also includes:
While the winding for controlling compressor is star-like connection mode, compressor is adjusted based on the machine outlet air temperature difference interior in real time
Running frequency.
Preferably, the method also includes: air conditioner booting after, air conditioner operation meet setting service condition after, hold
The row winding switching control process.
Preferably, the method also includes:
After air conditioner booting, when air conditioner operation does not meet the setting service condition, the winding for controlling compressor is triangle
Connection type.
To realize aforementioned invention purpose, control device provided by the invention, which adopts the following technical solutions, to be achieved:
A kind of cooler compressor control device, described device include:
Compressor winding control unit is triangle connection type or star-like connection mode for controlling compressor winding；
Machine outlet air temperature difference acquiring unit in real time, for calculating in real time between machine leaving air temp and interior machine leaving air temp target value
The temperature difference, obtain the machine outlet air temperature difference in real time；The machine leaving air temp interior in real time is machine air outlet temperature or interior in real time in real-time
Machine coil temperature；
Machine outlet air temperature difference comparing unit in real time, for the machine outlet air temperature difference interior in real time to be made ratio with indoor temperature difference threshold is set
Compared with, and export comparison result；The indoor temperature difference threshold of the setting includes at least first and sets indoor temperature difference threshold；
The compressor winding control unit is described real-time in the output result of the machine outlet air temperature difference comparing unit interior in real time
The winding of control compressor is also triangle connection side when the interior machine outlet air temperature difference is not less than the first setting outlet air temperature difference threshold
Formula, also it is described in real time in machine outlet air temperature difference comparing unit output result be it is described in real time in the machine outlet air temperature difference be less than described the
One controls the winding of compressor as star-like connection mode when setting outlet air temperature difference threshold.
Preferably, described device further include:
Compressor frequency control unit is at least used for during winding switching control, in the compressor winding control unit
While the winding for controlling compressor is triangle connection type, the running frequency of compressor is controlled not less than the critical frequency of setting
Rate；While the winding of compressor winding control unit control compressor is star-like connection mode, compressor is controlled
Running frequency is less than the setting critical frequency.
In addition, the present invention also provides a kind of air conditioner, including compressor, it further include above-mentioned cooler compressor control
Device.
Compared with prior art, the advantages and positive effects of the present invention are: being filled using control method of the invention and control
It sets, using the interior machine outlet air temperature difference as the condition of switching compressor winding connection, since the interior machine outlet air temperature difference reflects interior machine
The comfort of indoor leaving air temp is blowed to, and leaving air temp comfort directly affects the comfort of indoor human body, reflects room
The comfort of interior environment had both been able to achieve compared with the prior art is using the switching of compressor frequency control connection type based on ring
The comfort level intelligent control compressor in border reaches taking into account for amenity and compressor operational efficiency；Also, interior machine goes out wind-warm syndrome
Although difference is to reflect the indirect factor of compressor operational efficiency, but adjust the compressor frequency direct ginseng to be regulated and controled
Number, thus, within machine outlet air temperature difference control winding connection type switching, can be realized to the pre- of compressor winding connection
Sentence and control in advance, be swift in response, control reliability is higher；And the interior machine outlet air temperature difference will not be mutated, because being compressed without caused by
Machine is asked because continually switching comfort of reduction indoor environment, reduction compressor service life brought by winding connection etc.
The generation of topic improves air conditioner overall performance.
After a specific embodiment of the invention is read in conjunction with the figure, the other features and advantages of the invention will become more clear
Chu.
Detailed description of the invention
Fig. 1 is the flow chart based on the air condition of that present invention compressor control method one embodiment；
Fig. 2 is the flow chart based on another embodiment of the air condition of that present invention compressor control method；
Fig. 3 is the structural block diagram based on the air condition of that present invention compressor control device one embodiment.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, below with reference to drawings and examples,
Invention is further described in detail.
Referring to Figure 1, which show the flow chart based on the air condition of that present invention compressor control method one embodiment,
It specifically, is the compressor control method flow chart of the one embodiment for taking into account amenity and compressor operational efficiency.
As shown in Figure 1, the method that the embodiment realizes cooler compressor control includes the following steps that the winding to be formed is cut
Change control process:
Step 101: calculating the temperature difference in real time between machine leaving air temp and interior machine leaving air temp target value, the machine in real time that obtains goes out
Wind-warm syndrome is poor, and the real-time interior machine outlet air temperature difference is made comparisons with the first setting outlet air temperature difference threshold.
Specifically, machine leaving air temp refers in air conditioner booting operational process, according to setting using frequency reality in real-time
When obtain, the temperature of heat exchange air that reflection is blown out from indoor unit.The leaving air temp of interior machine air outlet and interior machine coil pipe
Temperature is to reflect the factor of interior machine leaving air temp, and therefore, interior machine leaving air temp can be interior machine air outlet temperature in real time in real time,
It can be machine coil temperature in real time.The acquisition of machine leaving air temp can be realized using the prior art in this is real-time, such as: if
For machine air outlet temperature in real-time, gone out by the way that air-conditioning is arranged in air inlet temperature sensor detect and get this in real time in
Machine air outlet temperature；It, can be by the coil temperature sensor that is arranged on interior machine evaporator if machine coil temperature in real-time
Detection and acquisition.Interior machine leaving air temp target value, which refers to, it is expected that the practical outlet air of interior machine to be reached by the adjusting of air conditioner
Target temperature.It will be appreciated to those of skill in the art that if interior machine leaving air temp is interior machine air outlet temperature, interior machine
Leaving air temp target value is the outlet air target temperature to be achieved of machine air outlet in it is expected；If interior machine leaving air temp is interior machine
Coil temperature, then interior machine leaving air temp target value is machine coil pipe target temperature to be achieved in it is expected.First sets out wind-warm syndrome
Poor threshold value is preset numerical value, should for reflecting the size of the difference of machine leaving air temp and interior machine leaving air temp target value in real time
Threshold value can be preset in a control program default temperature value when factory, be also possible to by air conditioner user's sets itself
A temperature value, can by authorization be modified.
After getting the real-time temperature difference, the size compared with the first setting outlet air temperature difference threshold executes not according to comparison result
Same compressor control processing.
Step 102: whether the machine outlet air temperature difference is less than the first setting outlet air temperature difference threshold in judgement in real time.If so, executing step
Rapid 103 control；Otherwise, the control of step 104 is executed.
Step 103: if step 102 determines that the machine outlet air temperature difference will be controlled less than the first setting outlet air temperature difference threshold in real time
The winding of compressor processed is star-like connection mode.
If in real time in the machine outlet air temperature difference less than first setting outlet air temperature difference threshold, at this time in real time in the machine outlet air temperature difference compared with
It is small, in real time in machine leaving air temp close to interior machine leaving air temp target value.In this case, compressor will generally be run with low frequency.
Therefore, the winding for controlling compressor in advance is star-like connection mode, can obtain under subsequent compression machine low frequency operating status
Obtain more preferably compressor operational efficiency.
Step 104: if step 102 determines that the machine outlet air temperature difference, will not less than the first setting outlet air temperature difference threshold in real time
The winding for controlling compressor is triangle connection type.
If in real time in the machine outlet air temperature difference not less than first setting outlet air temperature difference threshold, at this time in real time in the machine outlet air temperature difference compared with
Greatly, interior machine leaving air temp and interior machine leaving air temp target value difference are big in real time.In this case, compressor will generally be transported with high-frequency
Row.Therefore, the winding for controlling compressor in advance is triangle connection type, with the energy under subsequent compression machine high-frequency operating status
It is enough to obtain more preferably compressor operational efficiency.
Control compressor is star-like connection mode or is triangle connection type, can be realized using the prior art,
The embodiment is not construed as limiting this.
Also, the winding switching control process that above steps is constituted, which recycles, to be executed.That is, in control compressor with star
In connection type or the triangle connection type course of work, still constantly execute step 101 obtain in real time in the machine outlet air temperature difference with
And subsequent multilevel iudge process, which kind of winding connection is met, then controls compressor winding and is switched to the connection type.
Using the cooler compressor control method of the embodiment, connect the interior machine outlet air temperature difference as switching compressor winding
The condition for connecing mode blows to the comfort of indoor leaving air temp since the interior machine outlet air temperature difference reflects interior machine, and then reflects
The comfort of indoor environment uses compressor frequency control with the prior art with the switching of indoor temperature difference control winding connection type
The switching of connection type processed is compared, and is able to achieve based on environmental amenity degree intelligent control compressor, and amenity and pressure are reached
Contracting machine operational efficiency is taken into account；Also, although the interior machine outlet air temperature difference is operation effect in reflection compressor whole service frequency range
The indirect factor of rate, but adjust the compressor frequency direct parameter to be regulated and controled, thus, within the machine outlet air temperature difference control
The switching of winding connection can be realized the anticipation to compressor winding connection and control in advance, and control reliability is more
It is high；And the interior machine outlet air temperature difference will not be mutated, because without caused by compressor because continually switch winding connection brought by
It reduces the comfort of indoor environment, reduce the generation of the problems such as compressor service life, improve air conditioner overall performance.
Fig. 2 is referred to, which show the process based on another embodiment of the air condition of that present invention compressor control method
Figure, specifically, and takes into account the compressor control method stream of one embodiment of amenity and compressor operational efficiency
Cheng Tu.
As shown in Fig. 2, the method that the embodiment realizes cooler compressor control includes the following steps the process to be formed:
Step 201: air conditioner booting operation.
Step 202: judging whether air conditioner operation meets setting service condition, and step 203 is executed according to judging result
Or step 204.
Setting service condition is for judging air conditioner operation conditions if appropriate for the item for executing winding switching control process
The running frequency that runing time after the booting of part, including but not limited to air conditioner reaches after setting runing time or booting reaches
To setting running frequency.
Step 203: if step 202 determines air conditioner, operation does not meet setting service condition also, will control compressor
Winding is triangle connection type.
Generally, air conditioner can reach setting service condition with faster speed, also, after air conditioner booting, empty
Adjusting device is typically all high frequency operation, rapidly reaches higher frequency.In light of this situation, in this embodiment, by triangle
Initial connection mode of the connection type as compressor winding after booting avoids continually switching in the air conditioner operation initial stage
Winding connection.
Meanwhile in the control stage, compressor operating frequency is not construed as limiting, can be run for the frequency of putting of non-frequency limit,
It is fixed and for higher frequency to be also possible to operation one, realizes the quick adjusting of leaving air temp.
Step 204: if step 202 determines air conditioner, operation meets setting service condition, will execute and be based in real time
The winding connection of the machine outlet air temperature difference controls.
Specifically, it is the temperature difference calculated in real time between machine leaving air temp and interior machine leaving air temp target value, obtains real
When the interior machine outlet air temperature difference, will be real-time in the machine outlet air temperature difference set outlet air temperature difference threshold with first and make comparisons.The step is more specific
The corresponding description in embodiment step 101 refering to fig. 1 of realization process.
Step 205: whether the machine outlet air temperature difference is less than the first setting outlet air temperature difference threshold in judgement in real time.If so, executing step
Rapid 209；Otherwise, step 206 is executed.
Step 206: if step 205 determines that the machine outlet air temperature difference is not less than the first setting outlet air temperature difference threshold in real time, then
The size for comparing the machine outlet air temperature difference and the second setting outlet air temperature difference threshold in real time judges whether the machine outlet air temperature difference is greater than in real time
Second setting outlet air temperature difference threshold.The control of step 207 or step 208 is executed according to judging result.
Wherein, the second setting outlet air temperature difference threshold is greater than the first setting outlet air temperature difference threshold and preset numerical value, reflection
The size of the difference of machine leaving air temp and interior machine leaving air temp target value in real time.Likewise, the second setting outlet air temperature difference threshold can
Preset in a control program a default temperature value, is also possible to by one of air conditioner user's sets itself when being factory
Temperature value can be modified by authorization.
Step 207: if it is determined that the machine outlet air temperature difference is not less than the first setting outlet air temperature difference threshold and no more than the in real time
Two setting outlet air temperature difference thresholds show that the machine outlet air temperature difference is of moderate size in real time, are triangle company by the winding for controlling compressor
Mode is connect, to improve compressor operational efficiency.Meanwhile compressor operating frequency will also be adjusted, specifically based on real
When interior machine outlet air temperature difference adjustment compressor running frequency, realize the technology effect that the adjustment of transducer air conditioning temperature is accurate, low energy consumption
Fruit.And the running frequency based on real-time interior machine outlet air temperature difference adjustment compressor, it is preferably based on the machine outlet air temperature difference in real time and carries out
PID arithmetic or increment type PID operation, determine real-time frequency, and control compressor is run with real-time frequency.PID is executed according to deviation
The specific method of operation or increment type PID operation control and realization process can refer to the prior art.
Step 208: if it is determined that the machine outlet air temperature difference is greater than the second setting outlet air temperature difference threshold in real time, showing machine in real time
The outlet air temperature difference is larger, is triangle connection type by the winding of compressor is controlled, to improve compressor operational efficiency.Meanwhile it is right
Compressor operating frequency will also adjust, and control compressor specifically to fix running frequency operation, and the fixation is run
Frequency is generally higher frequency, reaches the technical effect of quick regulating outlet air temperature to comfort temperature.
Step 209: if step 205 determines that the machine outlet air temperature difference will be controlled less than the first setting outlet air temperature difference threshold in real time
The winding of compressor processed is star-like connection mode.
If in real time in the machine outlet air temperature difference less than first setting outlet air temperature difference threshold, at this time in real time in the machine outlet air temperature difference compared with
It is small, in real time in machine leaving air temp close to interior machine leaving air temp target value.In this case, compressor will generally be run with low frequency.
Therefore, the winding for controlling compressor in advance is star-like connection mode, can obtain under subsequent compression machine low frequency operating status
Obtain more preferably compressor operational efficiency.Meanwhile compressor operating frequency will also be adjusted, specifically based on interior machine in real time
The outlet air temperature difference adjusts the running frequency of compressor, realizes the technical effect that the adjustment of transducer air conditioning temperature is accurate, low energy consumption.And base
In the running frequency of real-time interior machine outlet air temperature difference adjustment compressor, it is preferably based on the machine outlet air temperature difference in real time and carries out PID arithmetic
Or increment type PID operation, determine real-time frequency, control compressor is run with real-time frequency.PID arithmetic or increasing are executed according to deviation
The specific method and realization process of amount formula PID arithmetic control can refer to the prior art.
In some other preferred embodiment, in the step 207 and step 208 of winding switching control process, controlling
While the winding of compressor is triangle connection type, the running frequency of control compressor is not less than setting critical frequency.
Wherein, setting critical frequency is known frequency values, and generally compressor operational efficiency under two kinds of winding connections occurs
The frequency values of turnover can be determined according to compressor operational efficiency curve.As a result, by compressor under triangle connection type
Running frequency make the restriction of minimum running frequency so that compressor maintains higher operation under the winding connection
Efficiency.
Likewise, the winding in the step 209 control compressor of winding switching control process is the same of star-like connection mode
When, the running frequency for controlling compressor is less than setting critical frequency.Pass through the operation to compressor under star-like connection mode as a result,
Frequency makees the restriction of maximum frequency of operation, so that compressor also maintains higher operation effect under the winding connection
Rate.
Cooler compressor is controlled using the method for the embodiment, had both been able to achieve based on environmental amenity degree intelligent control pressure
Contracting machine reaches taking into account for amenity and compressor operational efficiency, not will cause compressor also because continually switching winding connects
The comfort for reducing indoor environment brought by mode, the generation for reducing the problem of compressor service life are connect, air-conditioning is improved
Device overall performance.
In other some preferred embodiments, star is switched to by triangle connection type in the winding of control compressor
Connection type or when being switched to triangle connection type by star-like connection mode, control compressor is first shut down, and is then switched again, is protected
The safety for demonstrate,proving compressor, further increases operational reliability and compressor service life.
Fig. 3 is referred to, which show the structural frames based on the air condition of that present invention compressor control device one embodiment
Figure.
As shown in figure 3, the function of structural unit included by the control device of the embodiment, each structural unit and mutually
Between relationship it is as follows:
Machine outlet air temperature difference acquiring unit 301 in real time, for calculating machine leaving air temp and interior machine leaving air temp target value in real time
Between the temperature difference, obtain the machine outlet air temperature difference in real time.Wherein, interior machine leaving air temp is machine air outlet temperature or reality in real-time in real time
When interior machine coil temperature.
Machine outlet air temperature difference comparing unit 302 in real-time, being used for will the real-time interior machine outlet air temperature difference and the indoor temperature difference threshold of setting
It makes comparisons, and exports comparison result.Wherein, set indoor temperature difference threshold include but is not limited to the first setting outlet air temperature difference threshold,
Second setting outlet air temperature difference threshold.
Compressor winding control unit 303, the winding for controlling compressor 304 are that triangle connection type or star connect
Connect mode.It specifically, is that compressor winding is controlled according to the comparison result of interior 302 output of machine outlet air temperature difference comparing unit in real time
Connection type.Further, output knot of the compressor winding control unit 303 in real-time interior machine outlet air temperature difference comparing unit 302
Fruit is that the winding of control compressor when the interior machine outlet air temperature difference sets outlet air temperature difference threshold not less than first in real time is connected as triangle
Mode is also the real-time interior machine outlet air temperature difference less than the first setting in the output result of real-time interior machine outlet air temperature difference comparing unit 302
The winding that compressor is controlled when outlet air temperature difference threshold is star-like connection mode.
In other some embodiments, control device can also include:
Compressor frequency control unit, at least for being controlled in compressor winding control unit 303 during winding switching control
While the winding of compressor 304 processed is triangle connection type, the running frequency of control compressor 304 is critical not less than setting
Frequency；While the winding that compressor winding control unit 303 controls compressor 304 is star-like connection mode, control compression
The running frequency of machine 304 is less than setting critical frequency.
Compressor control device with above structure can be applied in air conditioner, and corresponding software program is run, and
Compressor operation control is executed according to the process of Fig. 1, Fig. 2 or other preferred embodiments, realizes and is based on environmental amenity degree intelligence
It can control compressor, reach taking into account for amenity and compressor operational efficiency, promote air conditioner overall performance.More specifically
Principle and process are refering to the above-mentioned description as described in control method.
The above embodiments are merely illustrative of the technical solutions of the present invention, rather than is limited；Although referring to aforementioned reality
Applying example, invention is explained in detail, for those of ordinary skill in the art, still can be to aforementioned implementation
Technical solution documented by example is modified or equivalent replacement of some of the technical features；And these are modified or replace
It changes, the spirit and scope for claimed technical solution of the invention that it does not separate the essence of the corresponding technical solution.
Claims (10)
1. a kind of cooler compressor control method, which is characterized in that the described method includes:
Circulation executes following winding switching control processes:
The temperature difference in real time between machine leaving air temp and interior machine leaving air temp target value is calculated, the machine outlet air temperature difference in real time is obtained,
The machine outlet air temperature difference interior in real time is made comparisons with the first setting outlet air temperature difference threshold；The machine leaving air temp interior in real time is real-time
Interior machine air outlet temperature or in real time interior machine coil temperature；
If the machine outlet air temperature difference interior in real time is not less than the first setting outlet air temperature difference threshold, the winding for controlling compressor is three
Angle connection mode；
If the machine outlet air temperature difference interior in real time is less than the first setting outlet air temperature difference threshold, the winding for controlling compressor is star
Connection type.
2. the method according to claim 1, wherein the method also includes: in the winding switching control
Cheng Zhong,
While the winding for controlling compressor is triangle connection type, the running frequency for controlling compressor is faced not less than setting
Boundary's frequency；
While the winding for controlling compressor is star-like connection mode, the running frequency for controlling compressor is less than the setting and faces
Boundary's frequency.
3. according to the method described in claim 2, it is characterized in that, the method also includes:
If the real-time interior machine outlet air temperature difference goes out not less than the first setting outlet air temperature difference threshold, then the machine interior in real time
Wind-warm syndrome difference and the second setting outlet air temperature difference threshold；The second setting outlet air temperature difference threshold is greater than the first setting outlet air temperature difference
Threshold value；
If the machine outlet air temperature difference interior in real time is not less than the first setting outlet air temperature difference threshold and no more than second setting
Outlet air temperature difference threshold goes out wind-warm syndrome based on the machine interior in real time while the winding for controlling compressor is triangle connection type
The running frequency of difference adjustment compressor.
4. according to the method described in claim 3, it is characterized in that, the method also includes:
It is three in the winding of control compressor if the machine outlet air temperature difference interior in real time is greater than the second setting outlet air temperature difference threshold
While Angle connection mode, compressor is controlled to fix running frequency operation.
5. according to the method described in claim 2, it is characterized in that, the method also includes:
While the winding for controlling compressor is star-like connection mode, compressor is adjusted based on the machine outlet air temperature difference interior in real time
Running frequency.
6. the method according to any one of claims 1 to 5, which is characterized in that the method also includes:
After air conditioner booting, after air conditioner operation satisfaction setting service condition, the winding switching control process is executed.
7. according to the method described in claim 6, it is characterized in that, the method also includes:
After air conditioner booting, when air conditioner operation does not meet the setting service condition, the winding for controlling compressor is triangle
Connection type.
8. a kind of cooler compressor control device, which is characterized in that described device includes:
Compressor winding control unit is triangle connection type or star-like connection mode for controlling compressor winding；
Machine outlet air temperature difference acquiring unit in real time, for calculating in real time between machine leaving air temp and interior machine leaving air temp target value
The temperature difference, obtain the machine outlet air temperature difference in real time；The machine leaving air temp interior in real time is machine air outlet temperature or interior in real time in real-time
Machine coil temperature；
Machine outlet air temperature difference comparing unit in real time, for the machine outlet air temperature difference interior in real time to be made ratio with indoor temperature difference threshold is set
Compared with, and export comparison result；The indoor temperature difference threshold of the setting includes at least first and sets indoor temperature difference threshold；
The compressor winding control unit is described real-time in the output result of the machine outlet air temperature difference comparing unit interior in real time
The winding of compressor is controlled when the interior machine outlet air temperature difference set outlet air temperature difference threshold not less than described first as triangle connection type,
It is also that the machine outlet air temperature difference interior in real time is less than described first in the output result of the machine outlet air temperature difference comparing unit interior in real time
The winding of control compressor is star-like connection mode when setting outlet air temperature difference threshold.
9. device according to claim 8, which is characterized in that described device further include:
Compressor frequency control unit is at least used for during winding switching control, in the compressor winding control unit
While the winding for controlling compressor is triangle connection type, the running frequency of compressor is controlled not less than the critical frequency of setting
Rate；While the winding of compressor winding control unit control compressor is star-like connection mode, compressor is controlled
Running frequency is less than the setting critical frequency.
10. a kind of air conditioner, including compressor, which is characterized in that the air conditioner further includes described in the claims 8 or 9
Cooler compressor control device.
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