CN109210708A - Cooler compressor control method, control device and air conditioner - Google Patents
Cooler compressor control method, control device and air conditioner Download PDFInfo
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- CN109210708A CN109210708A CN201810966439.8A CN201810966439A CN109210708A CN 109210708 A CN109210708 A CN 109210708A CN 201810966439 A CN201810966439 A CN 201810966439A CN 109210708 A CN109210708 A CN 109210708A
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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 cooler compressor control method, control device and air-conditionings, the described method includes: circulation executes following winding switching control processes: calculating the temperature difference between real-time room temperature and room temperature target value, the indoor temperature difference in real time is obtained, the real-time indoor temperature difference is set into indoor temperature difference threshold with first and is made comparisons；If the real-time indoor temperature difference sets indoor temperature difference threshold not less than described first, the winding for controlling compressor is triangle connection type；If the real-time indoor temperature difference is less than described first and sets indoor 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 cooler compressor control method, control device and air conditioner.
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 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 indoor environment
Comfort causes very big influence.To which using existing way, reducing by compressor efficiency is promoted improves air conditioner
The effect of 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 between real-time room temperature and room temperature target value is calculated, the indoor temperature difference in real time is obtained, by the real-time room
The interior temperature difference sets indoor temperature difference threshold with first and makes comparisons；
If the real-time indoor temperature difference sets indoor temperature difference threshold not less than described first, the winding for controlling compressor is triangle
Connection type；
If the real-time indoor temperature difference is less than described first and sets indoor temperature difference threshold, the winding for controlling compressor is star-like connection
Mode；
While the winding of control compressor is star-like connection mode, machine leaving air temp in real time is obtained, calculating is described in real time
The temperature difference between interior machine leaving air temp and interior machine leaving air temp target value obtains the machine outlet air temperature difference in real time, based on described real-time
The running frequency of interior machine outlet air temperature difference adjustment compressor；The machine leaving air temp interior in real time is machine air outlet temperature or reality in real-time
When interior machine coil temperature.
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 indoor temperature difference sets indoor temperature difference threshold not less than described first, then the real-time indoor temperature difference with
Second sets indoor temperature difference threshold；Described second, which sets indoor temperature difference threshold, is greater than the indoor temperature difference threshold of the first setting；
If the real-time indoor temperature difference is not less than the indoor temperature difference threshold of first setting and indoor no more than second setting
Temperature difference threshold, while the winding for controlling compressor is triangle connection type, based on the real-time indoor temperature difference adjustment pressure
The running frequency of contracting machine.
Preferably, the method also includes:
It is triangle in the winding of control compressor if the real-time indoor temperature difference is greater than described second and sets indoor temperature difference threshold
While connection type, compressor is controlled to fix running frequency operation.
Method as described above, control compressor winding by triangle connection type be switched to star-like connection mode or
When being switched to triangle connection type by star-like connection mode, control compressor is first shut down, and is then switched again.
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；
Interior temperature difference acquiring unit in real time is obtained for calculating the temperature difference between real-time room temperature and room temperature target value
The interior temperature difference in real time；
Interior temperature difference comparing unit in real time, for the real-time indoor temperature difference to be made comparisons with indoor temperature difference threshold is set, and it is defeated
Comparison result out；The indoor temperature difference threshold of the setting includes at least first and sets indoor temperature difference threshold；
The compressor winding control unit is the real-time interior in the output result of the real-time indoor temperature difference comparing unit
The winding of control compressor is also triangle connection type when the temperature difference sets indoor temperature difference threshold not less than described first, also in institute
The output result for stating indoor temperature difference comparing unit in real time is that the real-time indoor temperature difference sets indoor temperature difference threshold less than described first
The winding that compressor is controlled when value is star-like connection mode；
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 star-like connection mode, machine leaving air temp in acquisition in real time calculates the machine interior in real time and goes out
The temperature difference between air temperature and interior machine leaving air temp target value obtains the machine outlet air temperature difference in real time, is gone out based on the machine interior in real time
The running frequency of wind-warm syndrome difference adjustment compressor；The machine leaving air temp interior in real time is interior machine air outlet temperature or in real time interior machine in real time
Coil temperature.
Preferably, the compressor frequency control unit is also used to during the winding switching control, in the pressure
While the winding of contracting machine winding control unit control compressor is triangle connection type, the running frequency of compressor is controlled not
Less than setting critical frequency；It is the same of star-like connection mode in the winding of compressor winding control unit control compressor
When, the running frequency for controlling compressor is less than the setting critical frequency.In addition, the present invention also provides a kind of air conditioner, packet
Compressor is included, further includes 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 indoor temperature difference as the condition of switching compressor winding connection, since the indoor temperature difference directly reflects indoor environment
Comfort, with the prior art using compressor frequency control connection type switching compared with, be both able to achieve based on environment relax
Appropriate intelligent control compressor reaches taking into account for amenity and compressor operational efficiency；Also, although the indoor temperature difference is anti-
The indirect factor of compressor operational efficiency is reflected, but adjusts the compressor frequency direct parameter to be regulated and controled, thus, with room
The switching of interior temperature difference control winding connection type can be realized the anticipation to compressor winding connection and control in advance, instead
Should rapidly, control reliability is higher；And the indoor temperature difference will not be mutated, because without caused by compressor because continually switching winding company
The comfort for reducing indoor environment brought by mode, the generation for reducing the problems such as compressor service life are connect, air-conditioning is improved
Device 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: the temperature difference between real-time room temperature and room temperature target value is calculated, the indoor temperature difference in real time is obtained, it will be real
When room in the temperature difference set indoor temperature difference threshold with first and make comparisons.
It is obtained in real time in air conditioner booting operational process, according to setting using frequency specifically, real-time room temperature refers to
The temperature in room locating for the air conditioner taken.The acquisition of the real-time room temperature can be realized using the prior art, for example, passing through
Air-conditioning air inlet or temperature sensor detection and acquisition inlet air temperature close to the position of air-conditioning air inlet are set, as reality
When room temperature.Room temperature target value refers to that set by user or air conditioner is set automatically, expectation is indoor achieved
Target temperature.The indoor temperature difference threshold of first setting is preset numerical value, for reflecting real-time room temperature and room temperature target
The size of the difference of value, the threshold value can be preset in a control program default temperature value when factory, be also possible to by sky
A temperature value of device user sets itself is adjusted, can be modified by authorization.
For the real-time indoor temperature difference, it will be appreciated by those skilled in the art that if air conditioner runs refrigeration mode, real-time room
Interior temperature is generally greater than room temperature target value, then the indoor temperature difference is that real-time room temperature subtracts room temperature target value in real time
Difference.If air conditioner runs heating mode, room temperature target value is generally greater than real-time room temperature, then the real-time indoor temperature difference
It is the difference that room temperature target value subtracts real-time room temperature.After getting the real-time temperature difference, the indoor temperature difference is set with first
Threshold value comparison size executes different compressor controls according to comparison result and handles.
Step 102: whether the indoor temperature difference sets indoor temperature difference threshold less than first in real time for judgement.If so, executing step 103
Control；Otherwise, the control of step 104 is executed.
Step 103: if step 102 determines that the indoor temperature difference sets indoor temperature difference threshold less than first in real time, and control is pressed
The winding of contracting machine is star-like connection mode.
If the interior temperature difference sets indoor temperature difference threshold less than first in real time, the indoor temperature difference is smaller in real time at this time, real-time room
Interior temperature is close to room temperature target value.In this case, compressor will generally be run with low frequency.Therefore, control compression in advance
The winding of machine is star-like connection mode, can obtain more preferably compressor operation under subsequent compression machine low frequency operating status
Efficiency.
Moreover, also to be adjusted while the winding for controlling compressor is star-like connection mode to compressor operating frequency
It is whole, and be the running frequency based on interior machine leaving air temp adjustment compressor.It specifically, is star in the winding of control compressor
While connection type, machine leaving air temp in real time is obtained, calculates 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, the running frequency of compressor adjusted based on the machine outlet air temperature difference in real-time.
Wherein, real-time interior machine leaving air temp refers to is obtained in air conditioner booting operational process, according to setting using frequency in real time
The temperature for the heat exchange air that take, reflection is blown out from indoor unit.The leaving air temp of interior machine air outlet and interior machine coil temperature
The factor of machine leaving air temp in reflecting, therefore, in real time in machine leaving air temp can be machine air outlet temperature in real time, can also be with
It is 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 reality
When interior machine air outlet temperature, gone out by the way that air-conditioning is arranged in air inlet temperature sensor detect and get this in real time in machine go out
Draught temperature；If real-time interior machine coil temperature, can be detected by the coil temperature sensor being arranged on interior machine evaporator
And acquisition.Interior machine leaving air temp target value refers to the practical outlet air mesh to be achieved that interior machine it is expected by the adjusting of air conditioner
Mark 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 outlet air
Temperature target 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 pipe
Temperature, then interior machine leaving air temp target value is machine coil pipe target temperature to be achieved in it is expected.And based on interior machine outlet air in real time
The temperature difference adjusts the running frequency of compressor, is preferably based on the machine outlet air temperature difference in real time and carries out PID arithmetic or increment type PID fortune
It calculates, determines real-time frequency, control compressor is run with real-time frequency.PID arithmetic or increment type PID operation control are executed according to deviation
The specific method and realization process of system can refer to the prior art.
As described above, under compressor star-like connection mode, real-time room temperature shows close to room temperature target value
Room temperature has had reached comparatively comfortable degree.It hereafter, will be main control target with outlet air comfort, it is specific next
Say it is that the leaving air temp of air outlet is improved based on the running frequency of leaving air temp adjustment compressor, so that leaving air temp is suitable for, makes
It is cool without cold, heat reaches while realizing the operating of compressor high efficiency without hot-tempered comfortable air-supply under heating mode under cold mode
To the effect for improving air-supply comfort, so that the control of air conditioner is more accurate, reasonable.
Step 104: if step 102 determines that the indoor temperature difference sets indoor temperature difference threshold not less than first in real time, will control
The winding of compressor is triangle connection type.
If the interior temperature difference sets indoor temperature difference threshold not less than first in real time, the indoor temperature difference is larger in real time at this time, in real time
Room temperature and room temperature target value difference are big.In this case, compressor will generally be run with high-frequency.Therefore, it controls in advance
The winding of compressor processed is triangle connection type, can more preferably be pressed under subsequent compression machine high-frequency operating status
Contracting machine 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 the indoor temperature difference in real time and after
Which kind of winding connection is continuous multilevel iudge process, meet, then controls compressor winding and be switched to the connection type.
Using the cooler compressor control method of the embodiment, using the indoor temperature difference as switching compressor winding connection side
The condition of formula, since the indoor temperature difference directly reflects the comfort of indoor environment, with indoor temperature difference control winding connection type
Switching is able to achieve compared with the prior art is using the switching of compressor frequency control connection type based on environmental amenity degree intelligence
It can control compressor, reach taking into account for amenity and compressor operational efficiency；Also, although the indoor temperature difference is reflection compression
The indirect factor of operational efficiency in machine whole service frequency range, but adjust the compressor frequency direct ginseng to be regulated and controled
Number, thus, with the switching of indoor temperature difference control winding connection type, can be realized the anticipation to compressor winding connection and
It controls in advance, control reliability is higher；And the indoor temperature difference will not be mutated, because without caused by compressor because continually switching winding
The comfort of indoor environment is reduced brought by connection type, reduces the generation of the problems such as compressor service life, improves sky
Adjust device 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 room temperature.
Step 204: if step 202 determines air conditioner, operation meets setting service condition, is based on real-time room for executing
The winding connection of the interior temperature difference controls.
Specifically, it is the temperature difference calculated between real-time room temperature and room temperature target value, obtains real-time Indoor Temperature
The real-time indoor temperature difference is set indoor temperature difference threshold with first and made comparisons by difference.The step more specifically realizes that process is real refering to fig. 1
Apply the corresponding description in a step 101.
Step 205: whether the indoor temperature difference sets indoor temperature difference threshold less than first in real time for judgement.If so, executing step
209；Otherwise, step 206 is executed.
Step 206: if step 205 determines that the indoor temperature difference sets indoor temperature difference threshold not less than first in real time, then comparing
The size that the interior temperature difference sets indoor temperature difference threshold with second in real time judges whether the indoor temperature difference is greater than the second setting interior in real time
Temperature difference threshold.The control of step 207 or step 208 is executed according to judging result.
Wherein, second indoor temperature difference threshold is set greater than the first indoor temperature difference threshold of setting and preset numerical value, reflection
The size of the difference of real-time room temperature and room temperature target value.Likewise, the indoor temperature difference threshold of the second setting can be factory
When preset in a control program a default temperature value, be also possible to a temperature value by air conditioner user's sets itself,
It can be modified by authorization.
Step 207: if it is determined that the interior temperature difference sets indoor temperature difference threshold not less than first and sets no more than second in real time
Fixed interior temperature difference threshold shows that the indoor temperature difference is of moderate size in real time, is triangle connection type by the winding for controlling compressor, with
Improve compressor operational efficiency.Meanwhile compressor operating frequency will also be adjusted, specifically based on the indoor temperature difference in real time
The running frequency of compressor is adjusted, realizes the technical effect that the adjustment of transducer air conditioning temperature is accurate, low energy consumption.And it is based on real-time room
The running frequency of interior temperature difference adjustment compressor is preferably based on the indoor 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 increment type PID operation control are executed according to deviation
Specific method and realize process can refer to the prior art.
Step 208: if it is determined that the interior temperature difference is greater than the indoor temperature difference threshold of the second setting in real time, showing the indoor temperature difference in real time
It is larger, it is triangle connection type by the winding of compressor is controlled, to improve compressor operational efficiency.Meanwhile compressor is transported
Line frequency will also adjust, and control compressor specifically to fix running frequency operation, and the fixation running frequency is general
For higher frequency, reach in quickly-conditioning indoor temperature to the technical effect of comfort temperature.
Step 209: if step 205 determines that the indoor temperature difference sets indoor temperature difference threshold less than first in real time, and control is pressed
The winding of contracting machine is star-like connection mode.
If the interior temperature difference sets indoor temperature difference threshold less than first in real time, the indoor temperature difference is smaller in real time at this time, real-time room
Interior temperature is close to room temperature target value.In this case, compressor will generally be run with low frequency.Therefore, control compression in advance
The winding of machine is star-like connection mode, can obtain more preferably compressor operation under subsequent compression machine low frequency operating status
Efficiency.Moreover, compressor operating frequency will also be adjusted while the winding for controlling compressor is star-like connection mode,
It and is the running frequency based on interior machine leaving air temp adjustment compressor.More specific treatment process is referring to the phase in Fig. 1 embodiment
It should describe.
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:
Interior temperature difference acquiring unit 301 in real time, for calculating the temperature difference between real-time room temperature and room temperature target value, is obtained
Obtain the indoor temperature difference in real time.
Interior temperature difference comparing unit 302 in real time, for the real-time indoor temperature difference to be made comparisons with indoor temperature difference threshold is set, and
Export comparison result.Wherein, setting indoor temperature difference threshold includes but is not limited to the first setting interior temperature difference threshold, the second setting room
Interior temperature difference threshold.
Compressor winding control unit 303, the winding for controlling compressor 305 are that triangle connection type or star connect
Connect mode.It specifically, is that the connection of compressor winding is controlled according to the comparison result of indoor 302 output of temperature difference comparing unit in real time
Mode.Further, compressor winding control unit 303 is real-time in the output result of real-time indoor temperature difference comparing unit 302
The winding of control compressor is triangle connection type when the indoor temperature difference sets indoor temperature difference threshold not less than first, also real-time
The output result of indoor temperature difference comparing unit 302 is control compression when the indoor temperature difference sets indoor temperature difference threshold less than first in real time
The winding of machine is star-like connection mode.
Compressor frequency control unit 304, at least for controlling the winding of compressor in compressor winding control unit 303
While for star-like connection mode, machine leaving air temp in real time is obtained, calculates machine leaving air temp and interior machine leaving air temp in real time
The temperature difference between target value obtains the machine outlet air temperature difference in real time, the operation frequency based on real-time interior machine outlet air temperature difference adjustment compressor
Rate；Interior machine leaving air temp is interior machine air outlet temperature or in real time interior machine coil temperature in real time in real time.
As preferred embodiment, compressor frequency control unit 304 is also used to during winding switching control,
While the winding of the control compressor 305 of compressor winding control unit 303 is triangle connection type, compressor 305 is controlled
Running frequency not less than setting critical frequency；It is star in the winding that compressor winding control unit 303 controls compressor 305
While connection type, the running frequency of control compressor 305 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 between real-time room temperature and room temperature target value is calculated, the indoor temperature difference in real time is obtained, by the real-time room
The interior temperature difference sets indoor temperature difference threshold with first and makes comparisons；
If the real-time indoor temperature difference sets indoor temperature difference threshold not less than described first, the winding for controlling compressor is triangle
Connection type；
If the real-time indoor temperature difference is less than described first and sets indoor temperature difference threshold, the winding for controlling compressor is star-like connection
Mode；
While the winding of control compressor is star-like connection mode, machine leaving air temp in real time is obtained, calculating is described in real time
The temperature difference between interior machine leaving air temp and interior machine leaving air temp target value obtains the machine outlet air temperature difference in real time, based on described real-time
The running frequency of interior machine outlet air temperature difference adjustment compressor；The machine leaving air temp interior in real time is machine air outlet temperature or reality in real-time
When interior machine coil temperature.
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 indoor temperature difference sets indoor temperature difference threshold not less than described first, then the real-time indoor temperature difference with
Second sets indoor temperature difference threshold；Described second, which sets indoor temperature difference threshold, is greater than the indoor temperature difference threshold of the first setting；
If the real-time indoor temperature difference is not less than the indoor temperature difference threshold of first setting and indoor no more than second setting
Temperature difference threshold, while the winding for controlling compressor is triangle connection type, based on the real-time indoor temperature difference adjustment pressure
The running frequency of contracting machine.
4. according to the method described in claim 3, it is characterized in that, the method also includes:
It is triangle in the winding of control compressor if the real-time indoor temperature difference is greater than described second and sets indoor temperature difference threshold
While connection type, compressor is controlled to fix running frequency operation.
5. the method according to claim 1, wherein the winding in control compressor is cut by triangle connection type
When being changed to star-like connection mode or being switched to triangle connection type by star-like connection mode, control compressor is first shut down, then
Switch again.
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；
Interior temperature difference acquiring unit in real time is obtained for calculating the temperature difference between real-time room temperature and room temperature target value
The interior temperature difference in real time；
Interior temperature difference comparing unit in real time, for the real-time indoor temperature difference to be made comparisons with indoor temperature difference threshold is set, and it is defeated
Comparison result out；The indoor temperature difference threshold of the setting includes at least first and sets indoor temperature difference threshold；
The compressor winding control unit is the real-time interior in the output result of the real-time indoor temperature difference comparing unit
The winding of control compressor is triangle connection type when the temperature difference sets indoor temperature difference threshold not less than described first, also described
The output result of interior temperature difference comparing unit is that the real-time indoor temperature difference sets indoor temperature difference threshold less than described first in real time
When control compressor winding be star-like connection mode；
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 star-like connection mode, machine leaving air temp in acquisition in real time calculates the machine interior in real time and goes out
The temperature difference between air temperature and interior machine leaving air temp target value obtains the machine outlet air temperature difference in real time, is gone out based on the machine interior in real time
The running frequency of wind-warm syndrome difference adjustment compressor；The machine leaving air temp interior in real time is interior machine air outlet temperature or in real time interior machine in real time
Coil temperature.
9. device according to claim 8, which is characterized in that the compressor frequency control unit is also used to described
It is triangle connection type in the winding of compressor winding control unit control compressor during winding switching control
Meanwhile the running frequency of compressor is controlled not less than setting critical frequency；It controls and compresses in the compressor winding control unit
While the winding of machine is star-like connection mode, the running frequency for controlling compressor 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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| CN201810966439.8A CN109210708A (en) | 2018-08-23 | 2018-08-23 | Cooler compressor control method, control device and air conditioner |
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| CN201810966439.8A CN109210708A (en) | 2018-08-23 | 2018-08-23 | Cooler compressor control method, control device and air conditioner |
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| CN201810966439.8A Pending CN109210708A (en) | 2018-08-23 | 2018-08-23 | Cooler compressor control method, control device and air conditioner |
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| CN111854101B (en) * | 2019-04-26 | 2022-09-06 | 青岛海尔空调器有限总公司 | Control method and device of variable frequency air conditioner and variable frequency air conditioner |
| CN111854103B (en) * | 2019-04-26 | 2022-09-06 | 青岛海尔空调器有限总公司 | Control method and device of variable frequency air conditioner and variable frequency air conditioner |
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