CN106594974B - Control method and control device of air conditioning system, air conditioner and air conditioning system - Google Patents
Control method and control device of air conditioning system, air conditioner and air conditioning system Download PDFInfo
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- CN106594974B CN106594974B CN201611002951.8A CN201611002951A CN106594974B CN 106594974 B CN106594974 B CN 106594974B CN 201611002951 A CN201611002951 A CN 201611002951A CN 106594974 B CN106594974 B CN 106594974B
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- 238000004378 air conditioning Methods 0.000 title claims abstract description 154
- 238000000034 method Methods 0.000 title claims abstract description 45
- 238000012544 monitoring process Methods 0.000 claims abstract description 24
- 230000005494 condensation Effects 0.000 claims description 12
- 238000009833 condensation Methods 0.000 claims description 12
- 230000006835 compression Effects 0.000 claims description 2
- 238000007906 compression Methods 0.000 claims description 2
- 230000005611 electricity Effects 0.000 claims 1
- 239000003507 refrigerant Substances 0.000 abstract description 10
- 230000008569 process Effects 0.000 description 15
- 230000006870 function Effects 0.000 description 8
- 238000010586 diagram Methods 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 4
- 230000001276 controlling effect Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 235000013399 edible fruits Nutrition 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 241000208340 Araliaceae Species 0.000 description 1
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 1
- 235000003140 Panax quinquefolius Nutrition 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 235000008434 ginseng Nutrition 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/30—Velocity
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- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Atmospheric Sciences (AREA)
- Physics & Mathematics (AREA)
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- Signal Processing (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The application discloses a control method and a control device of an air conditioning system, an air conditioner and the air conditioning system. The control method of the air conditioning system comprises the following steps: monitoring whether at least one operating parameter of the air conditioning system meets a corresponding preset condition or not under the condition that the air output of the air conditioning system is determined to be lower than a preset air output; and if the at least one operating parameter meets the corresponding predetermined condition, reducing the operating frequency of the compressor of the air conditioning system. The technical problem of protection shut down easily appears when having solved such as R32 refrigerant air conditioner and having operated with non-superstrong wind gap under abominable operating mode.
Description
Technical field
This application involves air-conditioning technical, control methods and control device in particular to a kind of air-conditioning system, air-conditioning
Device and air-conditioning system.
Background technique
R32 refrigerant is due to environmentally protective and the advantages that do not injure ozone layer and as novel refrigerant for air-conditioning
System.But it is outdoor compared with it is severe in the case where (such as the situation that outside air temperature is excessively high, outdoor temperature exists under general refrigeration mode
At 43 degrees Celsius or more), R32 refrigerant frequency conversion type may result in overload protection cancel closedown at runtime, to influence
The use of user.
Although general convertible frequency air-conditioner all has overloading control logic and wind file frequency limiting function.Overloading control is patrolled
It is unlikely excessively high to collect the condensing pressure for being commonly used in controlling air-conditioning, since condensing pressure is usually directly proportional to condensation temperature, mistake
Whether the condensation temperature that load control logic can detect air-conditioning is higher than preset temperature value to determine whether needing to reduce compressor
Running frequency or shutdown, to guarantee that the operation of air-conditioning is in ideal state, and guarantee the life and reliability of air-conditioning.And wind
Shelves frequency limiting function then refers to that the indoor unit of air-conditioning has the gear (i.e. wind file) of several different air forces, these general shelves
The maximum of position can running frequency it is given according to actual test (guarantee not the situations such as condensation), these corresponding maximums can be run
Frequency is exactly frequency limit frequency.
Although there is general convertible frequency air-conditioner strict logic to control compressor operating frequency, the overloading control
Logic and wind file frequency limiting function are all that (i.e. the maximum wind file of air conditioner indoor unit air-out volume, changes speech in the superpower wind file of air-conditioning
It, the maximum gear of indoor unit wind-force) when play a role.Convertible frequency air-conditioner on the market is for non-super high wind shelves (that is, air-conditioning at present
City machine wind-force is not the largest gear) frequency specific aim control seldom, and certain customers in order to power saving often do not open it is super
High wind shelves.Therefore, it when R32 refrigerant convertible frequency air-conditioner is run under severe operating condition with non-super high wind shelves, is easy for causing to protect
The case where shield is shut down, to influence the use of user.
Summary of the invention
The embodiment of the present application provides the control method and control device, air conditioner and air-conditioning system of a kind of air-conditioning system
System when being run at least solving such as R32 refrigerant air-conditioning under severe operating condition with non-super high wind shelves, is easy to appear protection and shut down
The problem of.
In order to solve the technical problem, this application provides one kind to run air-conditioning system under bad working environments with non-super high wind shelves
The method that the running frequency of compressor is adjusted when system, to reinforce frequency control of the R32 refrigerant air-conditioning under the operation of middle low wind file.
According to the one aspect of the application, a kind of control method of air-conditioning system is provided, comprising the following steps: determining
The air output of air-conditioning system is stated lower than in the case where predetermined air output, at least one operating parameter for monitoring the air-conditioning system is
It is no to meet corresponding predetermined condition；And if at least one described operating parameter meets corresponding predetermined condition, turn down described
The running frequency of the compressor of air-conditioning system.
According to the another aspect of the application, a kind of air conditioner is provided, comprising: the Wind volume detector of indoor unit is used for
Detect the air output of the indoor unit；Controller is communicated with the Wind volume detector of the indoor unit, in the air conditioner
Air output whether meet lower than at least one operating parameter in the case where predetermined air output, monitoring the air conditioner it is corresponding
Predetermined condition turns down the compressor of the air conditioner if at least one described operating parameter meets corresponding predetermined condition
Running frequency.
According to the another aspect of the application, a kind of control device for air-conditioning system is provided, comprising: monitoring unit,
For monitoring at least the one of the air-conditioning system in the case where determining the air output of the air-conditioning system lower than predetermined air output
Whether a operating parameter meets corresponding predetermined condition；And frequency adjustment unit, if at least one described operation ginseng
Number meets corresponding predetermined condition, turns down the running frequency of the compressor of the air-conditioning system.
According to having on one side for the application, a kind of air-conditioning system is provided, including control device described in above example.
In embodiments herein, solve in the related technology such as R32 refrigerant air-conditioning under severe operating condition with non-
When superpower wind file is run, it is easy to appear the problem of protection is shut down.
Detailed description of the invention
The drawings described herein are used to provide a further understanding of the present application, constitutes part of this application, this Shen
Illustrative embodiments and their description please are not constituted an undue limitation on the present application for explaining the application.In the accompanying drawings:
Fig. 1 is the flow chart of the control method of the air-conditioning system according to the embodiment of the present application 1；
Fig. 2 is the schematic diagram of the air conditioner according to the embodiment of the present application 2
Fig. 3 is the schematic diagram according to the embodiment of the present application 3 for the control device of air-conditioning system；
Fig. 4 is the schematic diagram according to the embodiment of the present application 5 for the frequency control system of air-conditioning；
Fig. 5 is the flow chart of the controller 301 according to the embodiment of the present application 5.
Specific embodiment
In order to make those skilled in the art more fully understand application scheme, below in conjunction in the embodiment of the present application
Attached drawing, the technical scheme in the embodiment of the application is clearly and completely described, it is clear that described embodiment is only
The embodiment of the application a part, instead of all the embodiments.Based on the embodiment in the application, ordinary skill people
Member's every other embodiment obtained without making creative work, all should belong to the model of the application protection
It encloses.
It should be noted that the description and claims of this application and term " first " in above-mentioned attached drawing, "
Two " etc. be to be used to distinguish similar objects, without being used to describe a particular order or precedence order.It should be understood that using in this way
Data be interchangeable under appropriate circumstances, so as to embodiments herein described herein can in addition to illustrating herein or
Sequence other than those of description is implemented.In addition, term " includes " and " having " and their any deformation, it is intended that cover
Cover it is non-exclusive include, for example, containing the process, method, system, product or equipment of series of steps or module or unit not
Those of be necessarily limited to be clearly listed step or module or unit, but may include be not clearly listed or for these mistakes
The intrinsic other steps of journey, method, product or equipment or module or unit.
Embodiment 1
Fig. 1 shows the flow chart of the control method of the air-conditioning system according to the embodiment of the present application 1, as shown in Figure 1, described
Control method includes:
S102: in the case where determining the air output of the air-conditioning system lower than predetermined air output, the air-conditioning system is monitored
Whether at least one operating parameter of system meets corresponding predetermined condition；And
S104: if at least one described operating parameter meets corresponding predetermined condition, the pressure of the air-conditioning system is turned down
The running frequency of contracting machine.
According to method described in the embodiment of the present application 1, made in advance by being lower than in the air output for determining the air-conditioning system
In the case where air quantity, whether at least one operating parameter for monitoring the air-conditioning system in advance meets corresponding predetermined condition, and
Turn down the running frequency of compressor.So that air-conditioning system is in the case where air output is lower than predetermined air output, remaining on can
To avoid the situation that overprotection is shut down, consequently facilitating the use of user.Wherein, air-conditioning system described in embodiment 1 is not limited to
Air-conditioning system used in family, suitable for any air-conditioning system with frequency conversion function.For any sky with frequency conversion function
It adjusts, can realize the adjusting to compressor operating frequency in the case where air output is lower than predetermined air output.
Optionally, whether at least one operating parameter for monitoring the air-conditioning system meets corresponding predetermined condition, including
At least one of the following: determine whether the outer tube temperature of the air-conditioning system is greater than or equal to default outer tube temperature；Really
Whether the running frequency of the fixed compressor is greater than or equal to preset operating frequency corresponding with the wind-force of the air-conditioning system；Really
Whether the delivery temperature of the fixed compressor is greater than or equal to default delivery temperature；And determine the operation of the air-conditioning system
Whether electric current is greater than or equal to pre-set current value.To may determine that whether air-conditioning system operates in by above-mentioned operating parameter
Ideally and with the presence or absence of the risk that overprotection is shut down, to more accurately control the running frequency of compressor.Its
In, the selection of above-mentioned parameter be not it is exclusive, other than above-mentioned parameter, any air-conditioning system operation conditions that is able to reflect
Operating parameter can be used for the application.
It optionally, further include adjusting by the running frequency of the compressor to first frequency, if reached predetermined
Whether time, at least one the described operating parameter for monitoring the air-conditioning system again meet the corresponding predetermined condition；With
And if at least one described operating parameter meets the corresponding predetermined condition, by the running frequency of the compressor from described
First frequency is turned down to second frequency.In this way, can be by way of repeatedly adjusting by the operation frequency of compressor of air conditioner
Rate is adjusted to ideal frequency values.But this feature is only intended to that the technical effect of the application is better achieved.If can lead to
The mode of Primary regulation is crossed, the thought of technical scheme also may be implemented.
Optionally, during turning down the running frequency of compressor of the air-conditioning system, the method also includes: such as
Fruit meets at least one following condition, then terminate the running frequency for turning down the compressor: the running frequency of the compressor connects
The continuous number turned down is more than pre-determined number；In the given time, any one or more operating parameters are unable to satisfy corresponding pre-
Fixed condition.To in this way, can be to avoid the frequent adjusting of the running frequency to compressor, to be conducive to extend compression
The service life of machine, to reach unexpected technical effect.Certainly, for the application, even without this feature,
Also can solve the technical issues of how overprotection being avoided to shut down in the case where lower air output of the application proposition.
Optionally, during turning down the running frequency of compressor of the air-conditioning system, the method also includes:
When determining that the air output of the air-conditioning system is greater than or equal to the predetermined air output, the running frequency of the compressor is limited
Within the scope of preset running frequency corresponding with the air output of the air-conditioning system；And judge the condensation of the air-conditioning system
Whether temperature is greater than or equal to default condensing temperature value, and when the condensation temperature for determining the air-conditioning system is greater than or equal to institute
When stating default condensing temperature value, the running frequency or shutdown of the compressor are reduced.That is, when determining air output greater than predetermined outlet air
When amount, so that it may according in superpower wind file using wind file frequency limit and overload frequency limit by the way of, realization air-conditioning system is given
Compressor adjusting.
Optionally, the predetermined air output is the maximum air output gear of the air-conditioning system.To be directed to certain customers
Because power saving is without avoiding the occurrence of the situation of overprotection shutdown using maximum air output gear (i.e. superpower wind file).Certainly, for
For the application, which is to further define a kind of situation of the application implementation, is not to solve the application
The essential features of technical problem.
Optionally, at least one operating parameter for monitoring the air-conditioning system whether meet corresponding predetermined condition it
Before, the method also includes: the running frequency for determining the compressor of the air-conditioning system is that the preset compressor exists
Minimum operating frequency under the operating condition of the air-conditioning system.Wherein, the operating condition be the indoor according to locating for air-conditioning system and
What the temperature and humidity of outside defined.It can determine the running frequency needed to compressor more accurately in this way
The condition being adjusted.Certainly, which is suitable for the method for specific convertible frequency air-conditioner type, for other kinds of
Air-conditioning system does not use the judgement of the condition also possible.
Embodiment 2
Fig. 2 shows the schematic diagrames according to the air conditioner 200 of the embodiment of the present application 2.As shown in Fig. 2, the air conditioner 200
Include:
The Wind volume detector 201 of indoor unit, for detecting the air output of the indoor unit；
Controller 202 is communicated with the Wind volume detector of the indoor unit, for being lower than in the air output of the air conditioner
In the case where predetermined air output, whether at least one operating parameter for monitoring the air conditioner meets corresponding predetermined condition, such as
At least one operating parameter described in fruit meets corresponding predetermined condition, turns down the running frequency of the compressor of the air conditioner.
Embodiment 3
Fig. 3 shows the schematic diagram of the control device 300 for air-conditioning system according to the embodiment of the present application 3, such as Fig. 2 institute
Show, the control 300 includes:
Monitoring unit 301, for monitoring in the case where determining the air output of the air-conditioning system lower than predetermined air output
Whether at least one operating parameter of the air-conditioning system meets corresponding predetermined condition；And
Frequency adjustment unit 302 turns down institute if meeting corresponding predetermined condition at least one described operating parameter
State the running frequency of the compressor of air-conditioning system.
Optionally, the monitoring unit includes: outer tube temperature determination module, for determining the outer tube temperature of the air-conditioning system
Whether degree is greater than or equal to default outer tube temperature；Running frequency determining module, for determining that the running frequency of the compressor is
It is no to be greater than or equal to preset operating frequency corresponding with the wind-force of the air-conditioning system；Delivery temperature determining module, for determining
Whether the delivery temperature of the compressor is greater than or equal to default delivery temperature；And electric current determining module, described in determining
Whether the electric current of the operation of air-conditioning system is greater than or equal to pre-set current value.
Optionally, further includes: the first determination unit, for the running frequency in the compressor for turning down the air-conditioning system
In the process, determine that the number that the running frequency of the compressor is continuously turned down is more than pre-determined number；Second determination unit is used for
During the running frequency for turning down the compressor of the air-conditioning system, determine in the given time, any one or more fortune
Row parameter is unable to satisfy corresponding predetermined condition；And unit is terminated, in the first determination unit and the second determination unit
At least one when making a determination, terminate the running frequency for turning down the compressor.
Optionally, further includes: third determination unit, for the running frequency in the compressor for turning down the air-conditioning system
Determine that the air output of the air-conditioning system is more than or equal to the predetermined air output in the process；Running frequency determining module, being used for will
The running frequency of the compressor is limited within the scope of preset running frequency corresponding with the air output of the air-conditioning system；With
And overload frequency limit unit, for judging whether the condensation temperature of the air-conditioning system is greater than or equal to default condensing temperature value,
And when the condensation temperature for determining the air-conditioning system is greater than or equal to the default condensing temperature value, reduce the compressor
Running frequency or shutdown.
Optionally, the predetermined air output is the maximum air output gear of the air-conditioning system.
Optionally, further includes: minimum operating frequency determination unit, for monitoring the air-conditioning system in the monitoring unit
At least one operating parameter whether meet corresponding predetermined condition before, determine the compressor of the air-conditioning system operation frequency
Rate is minimum operating frequency of the preset compressor under the operating condition of the air-conditioning system.Wherein, the operating condition is
What the temperature and humidity of the indoor according to locating for air-conditioning system and outside defined.
Embodiment 4
According to an embodiment of the present application 4, provide a kind of air-conditioning system comprising any one is controlled described in embodiment 3
Device processed.
Embodiment 5
Below in embodiment 5, it will combine the specific technical solution of the application that the technical solution of the application is discussed in detail.
It is however noted that the technical solution of embodiment 5, which is only used for facilitating, understands the application, and it is not construed as the limit to the application
System.
As previously described, general convertible frequency air-conditioner all has overloading control logic and wind file frequency limiting function, thus
Compressor operating frequency is controlled with strict logic, but the overloading control logic and wind file frequency limiting function are all
In the superpower wind file (i.e. the maximum wind file of air conditioner indoor unit air-out volume, in other words, the maximum gear of indoor unit wind-force) of air-conditioning
When play a role.And certain customers often do not open superpower wind file for power saving, and use non-superpower wind file.Therefore, R32 is cold
When matchmaker's convertible frequency air-conditioner is run under severe operating condition with non-super high wind shelves, it is easy for leading to the case where protection is shut down occur, thus
Influence the use of user.
Therefore, in order to solve the technical problem, embodiments herein 5 proposes empty for controlling under non-super high wind shelves
The control system and control method of the frequency of the compressor of tune.
Attached drawing 4 shows the frequency control of the running frequency of the compressor for controlling air-conditioning according to the embodiment of the present application 5
System 400 processed, the frequency control system 400 control the compressor of air-conditioning for realizing in the case where non-super high wind shelves
Frequency.
As shown in figure 4, the frequency control system 400 includes controller 401, appearance temperature sensor 402, delivery temperature
Sensor 403, memory 404 and compressor drive 405.
Wherein the controller 401 is used for according to the outer tube temperature T from the received air-conditioning of outer tube temperature sensor 402Pipe, from
The delivery temperature T of the received compressor of exhaust gas temperature sensor 403Row, received compressor running frequency FcAnd it is current empty
The wind file D of tunew, in conjunction with the parameter (will be described in detail below) read from memory 404, generate the operation for adjusting compressor
The control signal of frequency, and send control signals to compressor drive 405.
As shown in Fig. 4, the controller receives outer tube temperature T by port 4011Pipe, received and be vented by port 4012
Temperature TRow, the running frequency F of compressor is received by port 4013c, wind file D is received by port 4014w, pass through port 4015
Parameter is read from memory 404, and exports to compressor drive 405 operation for adjusting compressor by port 4016
The control signal of frequency.The operation stream of controller 401 will be described in detail further combined with flow chart shown in attached drawing 4 below
Journey.
Attached drawing 5 shows the operating process of controller 401, and as shown in Fig. 5, in step 5502, controller 401 is logical first
Cross the wind file D that port 4014 receives current operation of air conditionerw, and judge current wind file DwIt whether is superpower wind file.Wherein, here
The superpower wind file typically refers to, the higher gear of air-conditioning system wind-force, especially the highest gear of air-conditioning system wind-force.
If step S502 determine the current wind file of the air-conditioning be superpower wind file, process carry out step S514,
It is adjusted according to the frequency under superpower wind file to handle.It is adjusted about the frequency under superpower wind file, which is not described herein again.
If determining that the current wind file of the air-conditioning is not superpower wind file in step S502, process enters step
S504.In step S504, controller 401 further judges the current running frequency F of compressorcIt whether is preset current
Minimum operating frequency under operating condition.
In the present embodiment, the operating condition typically refers to the temperature and humidity of indoor survey and outside.Controller 401 is logical
It crosses port 4017 and obtains above-mentioned above-mentioned parameter relevant to operating condition from operating condition sensor 406.And controller 401 can pass through port
4015 obtain preset, minimum operating frequency corresponding with current working from memory 404.Then, controller 401 can
To judge the running frequency F from the received current compressor in port 4013cWhether be current working minimum operating frequency.
If controller 401 determines the running frequency F of current compressorcIt is not the minimum operating frequency of current working, then
It is back to step S502.If controller 401 determines the running frequency F of current compressorcIt is the minimum operation frequency of current working
Rate, then process marches to step S506.
In step S506, controller 401 judges outer tube temperature TPipe, delivery temperature TRowAnd the running frequency F of compressorc
In any one whether meet the condition that the frequency of the compressor of air-conditioning is adjusted.
Have in the present embodiment, controller 401 judges whether to meet any one following condition:
Outer tube temperature TPipeMore than or equal to (overload frequency limit temperature-△ T1)；
Delivery temperature TRowMore than or equal to (exhaust frequency limit temperature-△ T2)；And
FcMore than or equal to (current wind file frequency limit frequency-△ F).
Wherein, overload frequency limit temperature is to be stored in advance in memory 404, for determine air-conditioning overload from
And need to make the temperature of frequency limit operation.Exhaust frequency limit temperature is to be stored in advance in memory 404, when the exhaust temperature of compressor
Degree then shows the excessive discharge temperature of compressor when reaching the temperature, need to carry out frequency limit processing.Currently wind file frequency limit frequency is
In being stored in advance in memory 404, frequency values corresponding with each wind file.As running frequency FcWhen reaching the frequency values, then
Show running frequency FcThe permitted frequency range of current wind file is had exceeded, to need down conversion process.Parameter △ T1, △
T2 and △ F is then respectively to be stored in advance in memory 404, regulated value corresponding from different air conditioner types.According to not
With air conditioner type, different parameter △ T1, △ T2 and △ F are selected, so that the frequency control system of embodiment 4 can be with
Suitable for different types.Wherein △ F is generally between 0 to 5 (hertz), and △ T1 and △ T2 then can according to the actual situation really
Recognize, because the heating of R32 refrigerant is quickly, if the too small possible effect of the temperature difference is unobvious, but general △ T1 < △ T2.
In order to realize the step, controller 401 receives outer tube temperature T by port 4011Pipe, received and arranged by port 4012
Temperature degree TRow, the running frequency F of compressor is received by port 4013c.Then it was read by port 4015 from memory 404
The parameters such as load frequency limit temperature, exhaust frequency limit temperature, current wind file frequency limit frequency, △ T1, △ T2 and △ F, thus on completing
The deterministic process stated.
When step S506 determines that any of conditions above meets, then illustrate that current air-conditioning needs to carry out compressor
Frequency limit, therefore advance to step S508.When determining that conditions above does not meet in step S506, then illustrate current operation of air conditioner
Normally.Process re-starts detection back to step S502.
In step S508, controller 401 judges whether the number that compressor operating frequency is adjusted has had reached predetermined time
Number (such as 3 times), if it is determined that the number of compressor operating frequency has had reached pre-determined number, then not to the frequency of compressor
It is adjusted, but directly terminates process, to prevent the running frequency of compressor by repeated multiple times adjustment, to be unfavorable for pressing
The operation of contracting machine and the service life that compressor may be detracted.When step S508 determine adjust number have not yet been reached it is predetermined
When value, then process advances to step S510.
In step S510, controller 401 is by the running frequency F of compressorcOne grade is turned down (such as from current running frequency
F0Turn down frequency F1)。
After the completion of step S510, in step S512 after predetermined time (such as 3 minutes), process returns to step
S506 judges after adjusting through overfrequency that whether recovered air-conditioning system is normal.If still determined in step S510 empty
Tune needs to carry out frequency limit to compressor, continues frequency adjustment.But as described above, the running frequency to compressor is adjusted
Whole number is limited (such as 3 times).When reaching pre-determined number, process terminates.
The process of the controller 401 according to embodiment 5 is described above.It should be noted that can be according to circumstances right
The distance that controller 401 executes improves.For example, step S504 can take the circumstances into consideration to consider to delete, to simplify the logic of judgement.This
Outside, in step S506, apart from the above parameters, can also use the other parameters (such as electric current of air-conditioning) of operation of air conditioner as
The condition of judgement, no longer arranges one by one herein, as long as may determine that the parameter of the state of the load of air-conditioning can use.
According to an embodiment of the present application 1 to 5 is described, in detail above at least to solve such as R32 refrigerant air-conditioning severe
Operating condition under with non-super high wind shelves operation when, be easy to appear protection shut down the problem of.
Above-mentioned the embodiment of the present application serial number is for illustration only, does not represent the advantages or disadvantages of the embodiments.
In above-described embodiment of the application, all emphasizes particularly on different fields to the description of each embodiment, do not have in some embodiment
The part of detailed description, reference can be made to the related descriptions of other embodiments.
In several embodiments provided herein, it should be understood that disclosed technology contents can pass through others
Mode is realized.Wherein, the apparatus embodiments described above are merely exemplary, such as the division of the unit or module,
Only a kind of logical function partition, there may be another division manner in actual implementation, such as multiple units or module or group
Part can be combined or can be integrated into another system, or some features can be ignored or not executed.Another point, it is shown
Or the mutual coupling, direct-coupling or communication connection discussed can be through some interfaces, module or unit it is indirect
Coupling or communication connection can be electrical or other forms.
The unit as illustrated by the separation member or module may or may not be physically separated, as
The component that unit or module are shown may or may not be physical unit or module, it can and it is in one place, or
Person may be distributed in multiple network units or module.Some or all of list therein can be selected according to the actual needs
Member or module achieve the purpose of the solution of this embodiment.
In addition, each functional unit or module in each embodiment of the application can integrate in a processing unit or mould
In block, it is also possible to each unit or module physically exists alone, can also be integrated in two or more units or module
In one unit or module.Above-mentioned integrated unit or module both can take the form of hardware realization, can also use software
The form of functional unit or module is realized.
If the integrated unit is realized in the form of SFU software functional unit and sells or use as independent product
When, it can store in a computer readable storage medium.Based on this understanding, the technical solution of the application is substantially
The all or part of the part that contributes to existing technology or the technical solution can be in the form of software products in other words
It embodies, which is stored in a storage medium, including some instructions are used so that a computer
Equipment (can for personal computer, server or network equipment etc.) execute each embodiment the method for the application whole or
Part steps.And storage medium above-mentioned includes: that USB flash disk, read-only memory (ROM, Read-Only Memory), arbitrary access are deposited
Reservoir (RAM, Random Access Memory), mobile hard disk, magnetic or disk etc. be various to can store program code
Medium.
The above is only the preferred embodiment of the application, it is noted that for the ordinary skill people of the art
For member, under the premise of not departing from the application principle, several improvements and modifications can also be made, these improvements and modifications are also answered
It is considered as the protection scope of the application.
Claims (13)
1. a kind of control method of air-conditioning system, which comprises the following steps:
In the case where determining the air output of the air-conditioning system lower than predetermined air output, at least the one of the air-conditioning system is monitored
Whether a operating parameter meets corresponding predetermined condition；And
If at least one described operating parameter meets corresponding predetermined condition, the operation of the compressor of the air-conditioning system is turned down
Frequency, wherein the operating parameter includes: the outer tube temperature of the air-conditioning system, the running frequency of the compressor, the pressure
The electric current of the operation of the delivery temperature of contracting machine and the air-conditioning system；
Wherein, the predetermined air output is the maximum air output gear of the air-conditioning system；
Whether at least one operating parameter for monitoring the air-conditioning system meets corresponding predetermined condition, including in the following terms
At least one of:
Determine whether the outer tube temperature of the air-conditioning system is greater than or equal to default outer tube temperature；
Determine whether the running frequency of the compressor is greater than or equal to default operation corresponding with the wind-force of the air-conditioning system
Frequency；
Determine whether the delivery temperature of the compressor is greater than or equal to default delivery temperature；And
Determine whether the electric current of the operation of the air-conditioning system is greater than or equal to pre-set current value.
2. control method according to claim 1, which is characterized in that adjust by the running frequency of the compressor to
After one frequency, if reaching the predetermined time, whether at least one the described operating parameter for monitoring the air-conditioning system again is full
The foot corresponding predetermined condition；And if at least one described operating parameter meets the corresponding predetermined condition, by institute
The running frequency for stating compressor is turned down from the first frequency to second frequency.
3. control method according to claim 2, which is characterized in that in the operation for the compressor for turning down the air-conditioning system
During frequency, the method also includes:
If meeting at least one following condition, the running frequency for turning down the compressor is terminated:
The number that the running frequency of the compressor is continuously turned down is more than pre-determined number；
In the given time, any one or more operating parameters are unable to satisfy corresponding predetermined condition.
4. control method according to claim 2, which is characterized in that in the operation for the compressor for turning down the air-conditioning system
During frequency, the method also includes:
When the air output for determining the air-conditioning system is equal to the predetermined air output,
The running frequency of the compressor is limited to preset running frequency model corresponding with the air output of the air-conditioning system
In enclosing；And
Judge whether the condensation temperature of the air-conditioning system is greater than or equal to default condensing temperature value, and when the determining air-conditioning
When the condensation temperature of system is greater than or equal to the default condensing temperature value, the running frequency or shutdown of the compressor are reduced.
5. control method as claimed in any of claims 1 to 4, which is characterized in that monitoring the air-conditioning system
At least one operating parameter whether meet corresponding predetermined condition before, the method also includes:
The running frequency for determining the compressor of the air-conditioning system is the preset compressor in the air-conditioning system
Minimum operating frequency under operating condition.
6. control method according to claim 5, which is characterized in that the operating condition is the interior according to locating for air-conditioning system
What the temperature and humidity of side and outside defined.
7. a kind of air conditioner characterized by comprising
The Wind volume detector of indoor unit, for detecting the air output of the indoor unit；
Controller is communicated with the Wind volume detector of the indoor unit, is lower than for the air output in the air conditioner and is made in advance
In the case where air quantity, whether at least one operating parameter for monitoring the air conditioner meets corresponding predetermined condition, if described
At least one operating parameter meets corresponding predetermined condition, turns down the running frequency of the compressor of the air conditioner；Wherein, described
Predetermined air output is the maximum air output gear of the air-conditioning system, and the operating parameter includes: the outer tube of the air-conditioning system
The electric current of the operation of temperature, the running frequency of the compressor, the delivery temperature of the compressor and the air-conditioning system；
The controller is also used to determine whether the outer tube temperature of the air-conditioning system is greater than or equal to default outer tube temperature；It determines
Whether the running frequency of the compressor is greater than or equal to preset operating frequency corresponding with the wind-force of the air-conditioning system；It determines
Whether the delivery temperature of the compressor is greater than or equal to default delivery temperature；And determine the electricity of the operation of the air-conditioning system
Whether stream is greater than or equal to pre-set current value.
8. a kind of control device for air-conditioning system characterized by comprising
Monitoring unit, for monitoring the sky in the case where determining the air output of the air-conditioning system lower than predetermined air output
Whether at least one operating parameter of adjusting system meets corresponding predetermined condition；And
Frequency adjustment unit turns down the air-conditioning if meeting corresponding predetermined condition at least one described operating parameter
The running frequency of the compressor of system, wherein the operating parameter includes: the outer tube temperature of the air-conditioning system, the compression
The electric current of the operation of the running frequency of machine, the delivery temperature of the compressor and the air-conditioning system；
Wherein, the predetermined air output is the maximum air output gear of the air-conditioning system；
The monitoring unit includes:
Outer tube temperature determination module presets outer tube temperature for determining whether the outer tube temperature of the air-conditioning system is greater than or equal to
Degree；
Running frequency determining module, for determining whether the running frequency of the compressor is greater than or equal to and the air-conditioning system
The corresponding preset operating frequency of wind-force；
Delivery temperature determining module, for determining whether the delivery temperature of the compressor is greater than or equal to default delivery temperature；
And
Electric current determining module, for determining whether the electric current of operation of the air-conditioning system is greater than or equal to pre-set current value.
9. control device according to claim 8, which is characterized in that further include:
First determination unit, for determining the pressure during turning down the running frequency of compressor of the air-conditioning system
The number that the running frequency of contracting machine is continuously turned down is more than pre-determined number；
Second determination unit, for determining predetermined during turning down the running frequency of compressor of the air-conditioning system
In time, any one or more operating parameters are unable to satisfy corresponding predetermined condition；And
Unit is terminated, for when at least one of the first determination unit and the second determination unit make a determination, termination to be turned down
The running frequency of the compressor.
10. control device according to claim 8, which is characterized in that further include:
Third determination unit, for determining the air-conditioning during turning down the running frequency of compressor of the air-conditioning system
The air output of system is equal to the predetermined air output；
Running frequency determining module, for the running frequency of the compressor to be limited to preset going out with the air-conditioning system
Within the scope of the corresponding running frequency of air quantity；And
Overload frequency limit unit, for judging whether the condensation temperature of the air-conditioning system is greater than or equal to default condensation temperature
Value, and when the condensation temperature for determining the air-conditioning system is greater than or equal to the default condensing temperature value, reduce the pressure
The running frequency or shutdown of contracting machine.
11. the control device according to any one of claim 8 to 10, which is characterized in that further include:
Minimum operating frequency determination unit, for monitoring at least one operating parameter of the air-conditioning system in the monitoring unit
Before whether meeting corresponding predetermined condition, determine that the running frequency of the compressor of the air-conditioning system is preset described
Minimum operating frequency of the compressor under the operating condition of the air-conditioning system.
12. control device according to claim 11, which is characterized in that the operating condition is the room according to locating for air-conditioning system
What the temperature and humidity of inside and outside defined.
13. a kind of air-conditioning system, which is characterized in that including control device described in any one of claim 8-12.
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| CN201611002951.8A CN106594974B (en) | 2016-11-14 | 2016-11-14 | Control method and control device of air conditioning system, air conditioner and air conditioning system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107781946B (en) * | 2017-09-18 | 2019-12-31 | 青岛海尔空调器有限总公司 | Heating control method of variable frequency air conditioner |
| CN108489025B (en) * | 2018-03-09 | 2020-07-03 | 广东美的制冷设备有限公司 | Air conditioner, control method thereof, and computer-readable storage medium |
| CN111189176B (en) * | 2018-11-14 | 2021-08-24 | 重庆海尔空调器有限公司 | Air conditioner and anti-freezing control method thereof |
| CN111412682A (en) * | 2020-03-31 | 2020-07-14 | 南京天加环境科技有限公司 | High-temperature heating control method for air conditioner |
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| CN104764143A (en) * | 2015-03-23 | 2015-07-08 | 广东美的制冷设备有限公司 | Constant-temperature dehumidification control method and system of air conditioner |
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| JP2016053451A (en) * | 2014-09-04 | 2016-04-14 | パナソニックＩｐマネジメント株式会社 | Air conditioner |
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| JP2016053451A (en) * | 2014-09-04 | 2016-04-14 | パナソニックＩｐマネジメント株式会社 | Air conditioner |
| CN104764143A (en) * | 2015-03-23 | 2015-07-08 | 广东美的制冷设备有限公司 | Constant-temperature dehumidification control method and system of air conditioner |
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