CN108758968A - Air-conditioner control method and air conditioner - Google Patents
Air-conditioner control method and air conditioner Download PDFInfo
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- CN108758968A CN108758968A CN201810487081.0A CN201810487081A CN108758968A CN 108758968 A CN108758968 A CN 108758968A CN 201810487081 A CN201810487081 A CN 201810487081A CN 108758968 A CN108758968 A CN 108758968A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
- F24F11/32—Responding to malfunctions or emergencies
- F24F11/37—Resuming operation, e.g. after power outages; Emergency starting
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2600/00—Control issues
- F25B2600/02—Compressor control
- F25B2600/021—Inverters therefor
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- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The present invention discloses a kind of air-conditioner control method and air conditioner, wherein air-conditioner control method includes the following steps：When receiving compressor frequency reducing instruction at a slow speed, obtaining compressor, frequency reducing instructs corresponding first object running frequency M at a slow speed；When first object running frequency M is less than preset first threshold frequency N, control compressor is run according to preset fluctuation model, under fluctuation model, running frequency fluctuation in frequency range [M, M*N] of compressor, wherein K is more than or equal to 1；When receiving compressor quick frequency reducing instruction, obtains the quick frequency reducing of compressor and instruct corresponding second target operating frequency；When the second target operating frequency is less than preset second threshold frequency, increase the refrigerant exchange capacity between outdoor unit of the air conditioner and indoor unit.This air-conditioner control method can improve comfort of the air conditioner when limiting Power operation.
Description
Technical field
The present invention relates to air conditioner technical field, more particularly to a kind of air-conditioner control method and air conditioner.
Background technology
In some low developed areas, since power grid infrastructure more falls behind, it may appear that limitation household electricity power shows
Shape.If household electricity general power is more than limitation performance number, it just will appear the case where air switch disconnects.Wherein, air conditioner category
In high-power electric appliance, when other household electrical appliances are in open state in family, if opening air conditioner, air switch substantially can
There is a phenomenon where disconnect.
For avoid the occurrence of air conditioner open when, air switch disconnect the case where, the prior art proposes a kind of air conditioner control
Scheme processed.That is, before opening air conditioner, current household electricity total current is first detected, and current household electricity is always electric
It flows the operating current after opening with air conditioner to be added, obtains the household electricity total current after air conditioner is opened.If air conditioner is opened
Household electricity total current after opening is more than the resistance to flow valuve of air switch, then air conditioner is run according to low frequency limit power mode, with
Household electricity total current after making air conditioner open is less than the resistance to flow valuve of air switch.
In this manner it is possible to solve the problems, such as to cause air switch to disconnect because air conditioner is opened.However, for a long time according to low frequency
Power mode operation is limited, the refrigeration effect of air conditioner can be influenced, comfort is poor.
Invention content
The main object of the present invention is to provide a kind of air-conditioner control method, it is intended to improve air conditioner when limiting Power operation
Comfort.
To achieve the above object, the present invention proposes a kind of air-conditioner control method, includes the following steps：
When receiving compressor frequency reducing instruction at a slow speed, obtaining compressor, frequency reducing instructs corresponding first object operation at a slow speed
Frequency M；
When the first object running frequency M is less than preset first threshold frequency N, the compressor is controlled according to pre-
If fluctuation model operation, under the fluctuation model, the running frequency of the compressor is in frequency range [M, M*N] interior wave
It is dynamic, wherein the K is more than or equal to 1；
When receiving compressor quick frequency reducing instruction, obtains the quick frequency reducing of compressor and instruct corresponding second object run
Frequency；
When second target operating frequency is less than preset second threshold frequency, increase outdoor unit of the air conditioner and room
Refrigerant exchange capacity between interior machine.
Preferably, also there is the compressor limit frequency pattern, the first object running frequency to be less than preset first threshold
It is described when the first object running frequency M is less than preset first threshold frequency N when being worth frequency N, control the compressor
It is run according to preset fluctuation model, under the fluctuation model, the running frequency of the compressor is at frequency range [M, M*N]
Interior fluctuation, wherein the step of K is more than or equal to 1 further includes：
The compressor is controlled according to preset fluctuation model and preset limit frequency pattern alternate run, in the limit frequency mould
Under formula, the running frequency of the compressor is the first object running frequency M.
Preferably, when the control compressor is run according to fluctuation model, the air-conditioner control method further includes：
Shielding receives the new quick frequency reducing instruction of compressor and compressor, and frequency reducing instructs at a slow speed.
Preferably, when the control compressor is according to limit frequency mode operation, the air-conditioner control method also wraps
It includes：
When receiving compressor frequency reducing instruction, the operation frequency of the compressor is controlled according to compressor frequency reducing instruction
Rate is reduced to third target operating frequency.
Preferably, further include after the step S200：
The instruction of compressor raising frequency is being received, the running frequency of the compressor is controlled according to compressor raising frequency instruction
It is increased to the 4th target operating frequency；
Judge whether the 4th target operating frequency is less than preset first threshold frequency；
If so, control compressor continues according to preset fluctuation model and preset limit frequency pattern alternate run；
It is run according to the 4th target operating frequency if it is not, then controlling compressor compresses machine.
Preferably, described when the first object running frequency M is less than preset first threshold frequency N, described in control
Compressor is run according to preset fluctuation model, and under the fluctuation model, the running frequency of the compressor is in frequency range
Fluctuation in [M, M*N], wherein further include after the step of K is more than or equal to 1：
When receiving the instruction of compressor raising frequency, the compressor operating frequency is controlled according to compressor raising frequency instruction
It is increased to the 5th target operating frequency, and is run according to the 5th target operating frequency.
Preferably, the air conditioner further includes wind turbine, it is described the first object running frequency be less than it is described preset
It is described when the first object running frequency M is less than preset first threshold frequency N when first threshold frequency, described in control
Compressor is run according to preset fluctuation model, and under the fluctuation model, the running frequency of the compressor is in frequency range
Fluctuation in [M, M*N], wherein the step of K is more than or equal to 1 further includes：
The wind speed of the wind turbine is set according to the first object running frequency of the compressor.
Preferably, the control compressor is run according to preset fluctuation model, described under the fluctuation model
The running frequency of compressor specifically includes in frequency range [M, K*N] the step of fluctuation：
The running frequency for controlling the compressor is in cyclically-varying, and the maximum frequency of operation of the compressor is K*N,
The minimum running frequency of the compressor is M.
Preferably, the air conditioner includes connecting the refrigerant pipeline of the outdoor unit and indoor unit and set on the refrigerant pipe
The electric expansion valve of road, the refrigerant exchange capacity increased between outdoor unit of the air conditioner and indoor unit include：
Increase the aperture of the electric expansion valve.
Preferably, the air conditioner include the connection outdoor unit and indoor unit refrigerant pipeline and with the refrigerant pipeline
The refrigerant bypass being arranged in parallel；When the cold medium flux flowed through in the refrigerant bypass unit interval is more than the refrigerant pipeline unit
The interior cold medium flux flowed through；
The refrigerant exchange capacity increased between outdoor unit of the air conditioner and indoor unit includes：
It is switched to connecting path of the refrigerant bypass as current outdoor machine and indoor unit from the refrigerant pipeline.
Preferably, the refrigerant pipeline and refrigerant bypass switch over control by two-way valve.
Preferably, the quantity of the refrigerant bypass is multiple, and corresponding multiple and different threshold value shelves flows, the step S400
It specifically includes：
When second target operating frequency is less than preset second threshold frequency, obtain and second object run
The corresponding target cold medium flux of frequency；
The refrigerant bypass of corresponding threshold value shelves flow is matched according to the target cold medium flux；
Connection of the refrigerant bypass of control and the target cold medium flux successful match as current outdoor machine and indoor unit
Access.
Preferably, described when second target operating frequency is less than preset second threshold frequency, increase air conditioner
Outdoor unit and indoor unit between refrigerant exchange capacity the step of after further include：
When receiving the instruction of compressor raising frequency, obtains compressor raising frequency and instruct corresponding 6th target operating frequency；
Judge whether the 6th target operating frequency is less than the preset second threshold frequency；
If so, controlling the connecting path of current outdoor machine and indoor unit described in the refrigerant bypass；
If it is not, then controlling connecting path of the refrigerant pipeline as current outdoor machine and indoor unit.
Preferably, described when second target operating frequency is less than preset second threshold frequency, increase air conditioner
Outdoor unit and indoor unit between refrigerant exchange capacity the step of after further include：
When receiving the instruction of compressor raising frequency, connection of the refrigerant pipeline as current outdoor machine and indoor unit is controlled
Access.
Preferably, described when receiving compressor frequency reducing instruction at a slow speed, acquisition compressor frequency reducing instruction at a slow speed is being executed
Before the step of corresponding first object running frequency M, the air-conditioner control method includes the following steps：
The current home electricity consumption general power sent after receiving detection device detection；
When the current home electricity consumption general power is more than preset threshold power, the compressor frequency reducing instruction is triggered.
Corresponding, the present invention also proposes a kind of air conditioner, including processor, memory and storage are in the memory
Air conditioner control program realizes air-conditioner control method as described above when the control program is executed by the processor
The step of.
In technical solution of the present invention：When receiving compressor frequency reducing instruction at a slow speed, if it is confirmed that after compressor frequency reducing
First object running frequency M is less than preset first threshold frequency N, then control compressor is transported according to preset fluctuation model
Row, and under the fluctuation model, running frequency fluctuation in frequency range [M, M*N] of compressor, wherein K >=1 so that pressure
The running frequency of contracting machine is higher than first object running frequency M, to promote the refrigeration effect of air conditioner；It is fast receiving compressor
When prompt drop frequency instructs, if it is confirmed that the second target operating frequency after compressor frequency reducing is less than preset second threshold frequency, that
Increase the refrigerant exchange capacity between air-conditioner outdoor unit and indoor unit so that the heat transfer rate of air conditioner room unit and outdoor unit
Accelerate, to promote the refrigeration effect of air conditioner.
In this way, when receiving compressor frequency reducing instruction at a slow speed, the technical program can pass through the operation for changing compressor
Pattern promotes the comfort of air conditioner；When receiving compressor quick frequency reducing instruction, the technical program can pass through air-conditioning
Refrigerant exchange capacity between device outdoor unit and indoor unit promotes the comfort of air conditioner.In other words, no matter what is received is pressure
Frequency reducing instruction or the quick frequency reducing instruction of compressor at a slow speed of contracting machine, under conditions of air conditioner comfort is not good enough, the technical program
The comfort of air conditioner can be promoted.
Description of the drawings
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
The structure shown according to these attached drawings obtains other attached drawings.
Fig. 1 is the flow diagram of one embodiment of this air-conditioner control method；
Fig. 2 is the flow diagram of another embodiment of this air-conditioner control method；
Fig. 3 is the refinement flow diagram of mono- embodiments of step S400 in Fig. 1；
Fig. 4 is the flow diagram of the another embodiment of this air-conditioner control method.
The embodiments will be further described with reference to the accompanying drawings for the realization, the function and the advantages of the object of the present invention.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation describes, it is clear that described embodiment is only a part of the embodiment of the present invention, instead of all the embodiments.Base
Embodiment in the present invention, those of ordinary skill in the art obtained without creative efforts it is all its
His embodiment, shall fall within the protection scope of the present invention.
It is to be appreciated that the description for being related to " first ", " second " etc. in the present invention is used for description purposes only, and cannot understand
To indicate or implying its relative importance or implicitly indicate the quantity of indicated technical characteristic.Define as a result, " first ",
The feature of " second " can explicitly or implicitly include at least one of the features.In addition, the technical side between each embodiment
Case can be combined with each other, but must can be implemented as basis with those of ordinary skill in the art, when the combination of technical solution
Conflicting or cannot achieve when occur will be understood that the combination of this technical solution is not present, also not the present invention claims guarantor
Within the scope of shield.
The present invention proposes a kind of air-conditioner control method.
Referring to Fig. 1, in one embodiment, air-conditioner control method includes the following steps：
S100 obtains compressor frequency reducing and instructs corresponding first object fortune when receiving compressor frequency reducing instruction at a slow speed
Line frequency M.
Here, first object running frequency, which is the normal operating frequency of compressor and frequency reducing at a slow speed, instructs corresponding frequency reducing
The difference of frequency.That is, frequency reducing instructs corresponding frequency reducing frequency to the normal operating frequency-of first object running frequency=compressor at a slow speed
Rate.For example, when air conditioner works normally, the normal operating frequency of compressor is 120Hz, and the frequency reducing at a slow speed being currently received refers to
It is 40Hz to enable corresponding frequency reducing frequency, then first object running frequency is exactly 120Hz-40Hz=80Hz.In other words, this reality
It applies in example, frequency reducing instruction at a slow speed refers to that compressor needs to reduce much frequencies.
It should be noted that for convertible frequency air-conditioner, the normal operating frequency of compressor is not a fixed value, is received
The time point instructed to frequency reducing at a slow speed is different, and the normal operating frequency of compressor may be also different.In addition, the normal fortune of compressor
Line frequency also to related, the described herein 120Hz of parameters such as the power of air conditioner, cryogenic temperature, only illustrating first
The computational methods of target operating frequency.
Alternatively, first object running frequency is the corresponding frequency reducing frequency of the instruction of frequency reducing at a slow speed.That is, first object operation frequency
The corresponding frequency reducing frequency of the frequency reducing instruction of rate=at a slow speed.For example, the frequency reducing frequency that the instruction of frequency reducing at a slow speed being currently received is corresponding
Rate is 120Hz, then first object running frequency is exactly 120Hz.In other words, in the present embodiment, frequency reducing instruction at a slow speed refers to pressing
Contracting machine needs to be reduced to much frequencies.
S200 controls the compressor when the first object running frequency M is less than preset first threshold frequency N
It is run according to preset fluctuation model, under the fluctuation model, the running frequency of the compressor is at frequency range [M, K*N]
Interior fluctuation, wherein the K is more than or equal to 1.
When first object running frequency is less than preset first threshold frequency, illustrate if compressor is according to first object
Running frequency is run, and the refrigeration effect of air conditioner may cannot be guaranteed, and influence whether the comfort of air conditioner.
To improve the comfort of air conditioner, in the present embodiment, confirming that first object running frequency is less than preset first
When threshold frequency, compressor is not controlled and is run according to first object running frequency, but enters comfort operational mode.That is, control
Compressor processed is run according to preset fluctuation model.
Specifically, control compressor is run according to fluctuation model, exactly shields the instruction of frequency reducing at a slow speed and quick frequency reducing refers to
It enables and (receives the instruction of frequency reducing at a slow speed to be not responding to ring when receiving shutdown command or raising frequency instruction when either quickly frequency reducing instructs
Answer), and control running frequency range fluctuation in [M, K*N] of compressor, wherein the K is more than or equal to 1.
In the present embodiment, since after confirming that first object running frequency is less than preset first threshold frequency, control is pressed
The running frequency range of contracting machine fluctuation in [M, K*N], wherein K is more than or equal to 1 so that the operation frequency of air conditioner hereafter
Rate is not less than first object running frequency.It can thus be avoided compressor continues low-frequency operation, ensure the refrigeration effect of air conditioner
Fruit, so as to improve the comfort of air conditioner.
It is noted that for convenience of the control to compressor operating frequency, in a preferred embodiment, compressor is controlled
Running frequency range in [M, K*N] fluctuation specifically refer to：The running frequency for controlling compressor is in cyclically-varying, and is compressed
The maximum frequency of operation of machine is K*N, and the minimum running frequency of compressor is M.
S300 obtains the quick frequency reducing of compressor and instructs corresponding second mesh when receiving compressor quick frequency reducing instruction
Mark operation frequency.
Here, the second target operating frequency, which is the normal operating frequency of compressor and quick frequency reducing, instructs corresponding frequency reducing
The difference of frequency.That is, quickly frequency reducing instructs corresponding frequency reducing frequency to the normal operating frequency-of the second target operating frequency=compressor
Rate.For example, when air conditioner works normally, the normal operating frequency of compressor is 120Hz, and the quick frequency reducing being currently received refers to
It is 40Hz to enable corresponding frequency reducing frequency, then the second target operating frequency is exactly 120Hz-40Hz=80Hz.In other words, this reality
It applies in example, quick frequency reducing instruction refers to that compressor needs to reduce much frequencies.
It should be noted that for convertible frequency air-conditioner, the normal operating frequency of compressor is not a fixed value, is received
The time point instructed to quick frequency reducing is different, and the normal operating frequency of compressor may be also different.In addition, the normal fortune of compressor
Line frequency also to related, the described herein 120Hz of parameters such as the power of air conditioner, cryogenic temperature, only illustrating second
The computational methods of target operating frequency.
Alternatively, the second target operating frequency is the corresponding frequency reducing frequency of quick frequency reducing instruction.That is, the second object run frequency
Rate=corresponding frequency reducing the frequency of quick frequency reducing instruction.For example, the frequency reducing frequency that the quick frequency reducing instruction being currently received is corresponding
Rate is 120Hz, then the second target operating frequency is exactly 120Hz.In other words, in the present embodiment, quick frequency reducing instruction refers to pressing
Contracting machine needs to be reduced to much frequencies.
S400 increases the outdoor of air conditioner when second target operating frequency is less than preset second threshold frequency
Refrigerant exchange capacity between machine and indoor unit.
When the second target operating frequency is less than preset second threshold frequency, illustrate if compressor is according to the second target
Running frequency is run, and refrigeration effect influences whether the comfort of air conditioner with regard to unobvious.
To improve the comfort of air conditioner, in the present embodiment, confirming that the second target operating frequency is less than preset second
When threshold frequency, increase the refrigerant exchange capacity between outdoor unit of the air conditioner and indoor unit.
It is understood that increasing outdoor if outdoor temperature is constant in one timing of indoor temperature for being equipped with air conditioner
Refrigerant exchange capacity between machine and indoor unit increases, then indoor environment temperature can reduce.In other words, increase the outdoor of air conditioner
Refrigerant exchange capacity between machine and indoor unit can play compensating action to the refrigeration effect of air conditioner, to promote air conditioner
Comfort.Therefore, the technical program can improve comfort of the air conditioner when limiting Power operation.
It should be noted that in the above, preset second threshold frequency can be with preset first threshold frequency phase
It together, can also be different from preset first threshold frequency.Preferably, preset second threshold frequency is less than preset first threshold
Frequency.
It is understood that in general, the quick frequency reducing of compressor instructs corresponding frequency reducing amplitude, at a slow speed more than compressor
Frequency reducing instructs corresponding frequency reducing amplitude.
After compressor is acted according to frequency reducing instruction execution frequency reducing at a slow speed, the running frequency of compressor is relatively large, air-conditioning
The comfort reduction of device is relatively less obvious, at this point, control compressor is run according to preset fluctuation model, on the one hand, can
Achieve the purpose that promoted air conditioner comfort, on the other hand, can be suitable for a plurality of types of air conditioners (for example, domestic air conditioning,
Central air-conditioning, multi-cascade air-conditioning etc.), it is very convenient.
After compressor is acted according to quick frequency reducing instruction execution frequency reducing, the running frequency of compressor is relatively large, air-conditioning
The comfort reduction of device is relatively more apparent, at this point, increase the refrigerant exchange capacity between air-conditioner outdoor unit and indoor unit, it can be right
The refrigeration deficiency of air conditioner plays compensating action, to ensure the refrigeration effect of air conditioner on the whole, promotes relaxing for air conditioner
Adaptive, reliability are high.
Based on the description of one embodiment of above-mentioned air-conditioner control method, referring to Fig. 2, in another embodiment, to reduce
The power consumption of air conditioner, compressor also have limit frequency pattern.Specifically, execute it is above-mentioned receiving compressor at a slow speed frequency reducing instruct
When, after the step of obtaining compressor frequency reducing instructs corresponding first object running frequency M at a slow speed, step S201 is executed, the
When one target operating frequency is less than preset first threshold frequency, control compressor is according to preset fluctuation model and preset limit
Frequency pattern alternate run, under the limit frequency pattern, the running frequency of the compressor is the first object running frequency M.
Specifically, being exactly to control after compressor runs a period of time according to fluctuation model, then compressor is controlled according to limit
Alternate cycles that frequency mode operation for a period of time, then controls compressor and runs a period of time according to fluctuation model ....
It is understood that in the room for being equipped with air conditioner, after air conditioner shuts down, room can also maintain a period of time
Cryogenic temperature.That is, when air conditioner stops freezing, room temperature will not increase moment.In other words, due to compressor
It can ensure the refrigeration effect of air conditioner according to fluctuation model operation, therefore, when compressor is switched to limit from fluctuation model operation
When frequency mode operation, room temperature will not increase moment, and control compressor switches according to limit frequency mode operation after for a period of time again
It is run to fluctuation model, the refrigeration effect and comfort of air conditioner can't be influenced.
Moreover, it is well known that the running frequency of compressor is higher, the energy consumption of air conditioner is also higher.Due to compressor
When being run according to fluctuation model, running frequency is consistently higher than first object running frequency, and compressor is according to limit frequency mode operation
When, running frequency is first object running frequency.Therefore, compressor according to limit frequency mode operation power consumption less than compressor according to
The power consumption of fluctuation model operation.In other words, after confirming that first object running frequency is less than preset first threshold frequency, control
Compressor, can be in the condition for improving air conditioner comfort according to preset fluctuation model and preset limit frequency pattern alternate run
Under, reduce the energy consumption of air conditioner.
Replace according to preset fluctuation model and preset limit frequency pattern it is noted that the present embodiment controls compressor
In operation, the specific duration that compressor ran and limited frequency mode operation according to fluctuation model can be unrestricted, should be with not shadow
It rings subject to air conditioner refrigeration effect and comfort.Preferably, under conditions of not influencing air conditioner refrigeration effect, can be appropriately extended
Compressor is according to the time for limiting frequency mode operation, to reduce air conditioner power consumption to the maximum extent.
In addition, to avoid compressor from being run according to fluctuation model in the case of household electricity general power, extend compressor
Service life, in a preferred embodiment, above-mentioned control compressor are handed over according to preset fluctuation model and preset limit frequency pattern
Further include later for the step of operation：
When receiving compressor frequency reducing instruction.
If according to limit frequency mode operation, the operation frequency of control compressor is just instructed according to compressor frequency reducing for compressor
Rate is reduced to third target operating frequency.
If compressor is just run according to fluctuation model, control compressor maintains fluctuation model, and in fluctuation mould
Formula run time then, switches to limit frequency mode operation.
Here, since compressor according to fluctuation model operation ensures that the refrigeration effect of air conditioner, air-conditioning is not influenced
The comfort of device.Therefore, even if compressor is run according to third target operating frequency, the system of air conditioner will not be influenced on the whole
Cold effect and comfort.
It is noted that preferably, if be currently received frequency reducing instruction be compressor at a slow speed frequency reducing instruct,
While controlling compressor and run according to third target operating frequency, can also increase outdoor unit of the air conditioner and indoor unit it
Between refrigerant exchange capacity.
When receiving the instruction of compressor raising frequency.
No matter compressor just according to limit frequency mode operation, is still just run according to fluctuation model, is all instructed and controlled according to raising frequency
The running frequency of compressor processed is increased to the 4th target operating frequency.And it is increased to the 4th mesh in the running frequency of control compressor
After marking running frequency, the 4th target operating frequency is compared with preset first threshold frequency, if the 4th target is transported
Line frequency is less than preset first threshold frequency, then control compressor continues according to preset fluctuation model and preset limit frequency
Pattern alternate run；If the 4th target operating frequency be not less than preset first threshold frequency, control compressor according to
4th target operating frequency is run.
In the present embodiment, the 4th target operating frequency can be the sum of current operation frequency and raising frequency frequency of compressor.
For example, the current operation frequency of compressor is 100Hz, raising frequency frequency is 20Hz, then the 4th target operating frequency is exactly 100Hz
+ 20Hz=120Hz.4th target operating frequency can also be raising frequency frequency corresponding with the instruction of compressor raising frequency.For example, current
It is 120Hz that compressor raising frequency, which instructs corresponding raising frequency frequency, then the 4th target operating frequency is exactly 120Hz.
In an alternative embodiment, to simplify air conditioner control flow, when receiving the instruction of compressor raising frequency, first basis
The running frequency of raising frequency instruction control compressor is increased to the 5th target operating frequency, then directly controls compressor according to the 5th mesh
Mark running frequency operation.
When receiving shutdown command.
Though compressor just according to limit frequency mode operation, still just run according to fluctuation model, all control compressor or
Air conditioner shuts down.
It is noted that in an alternative embodiment, confirming first object running frequency less than preset first threshold
It is worth after frequency, other than control compressor is according to fluctuation model and limit frequency pattern alternate run, also according to working as compressor
The wind speed of preceding running frequency setting wind turbine, to further increase the comfort of air conditioner.
It can be in the following way in an alternative embodiment based on the content of one embodiment of above-mentioned air-conditioner control method
Increase the refrigerant exchange capacity between outdoor unit of the air conditioner and indoor unit.
Specifically, air conditioner includes that the refrigerant pipeline for connecting outdoor unit and indoor unit and electronics on refrigerant pipeline are swollen
Swollen valve.In this way, the aperture by increasing electric expansion valve, so that it may be increased between outdoor unit of the air conditioner and indoor unit with reaching
The purpose of refrigerant exchange capacity.
It should be noted that in the present embodiment, if the electric expansion valve on refrigerant pipeline has multiple, having
When body is implemented, it is possible to increase the wherein aperture of any one electric expansion valve can also increase the aperture of multiple electric expansion valves, only
Want to increase the refrigerant exchange capacity between air-conditioner outdoor unit and indoor unit.Wherein, need the electronics for increasing aperture swollen
The number of swollen valve can be determined according to above-mentioned second target operating frequency, be not limited herein.
In another alternative embodiment, the refrigerant between outdoor unit of the air conditioner and indoor unit can be increased in the following way
Exchange capacity.
Specifically, air conditioner includes connecting the refrigerant pipeline of outdoor unit and indoor unit and being arranged in parallel with the refrigerant pipeline
Refrigerant bypass；The cold medium flux flowed through in the refrigerant bypass unit interval is more than the refrigerant stream flowed through in the refrigerant pipeline unit interval
Amount.In this way, by being switched to the connecting path that refrigerant bypass is used as current outdoor machine and indoor unit from refrigerant pipeline, so that it may to reach
To the purpose for increasing the refrigerant exchange capacity between outdoor unit of the air conditioner and indoor unit.
In the specific implementation, two-way valve, the selection connector and refrigerant pipe of the two-way valve can be set in air conditioner
Road connects, another selection connector of the two-way valve is connect with refrigerant bypass.In this way, by switching over control to two-way valve
System, so that it may to select refrigerant pipeline or refrigerant bypass as the connecting path of current outdoor machine and indoor unit.
Have not preferably, refrigerant pipeline and refrigerant bypass are two throttle valves with different opening or two
With the capillary of mechanical structure.Wherein, the difference of two capillaries is not limited herein, as long as refrigerant bypass unit can be realized
The cold medium flux flowed through in time is more than the cold medium flux flowed through in the refrigerant pipeline unit interval.
It is understood that electric expansion valve, throttle valve, capillary and two-way valve are all the portions that air conditioner inherently has
Part.Above-described embodiment is by increasing electronic expansion valve opening, selection throttle valve or capillary with larger cold medium flux, just
Achieve the purpose that increase the refrigerant exchange capacity between outdoor unit of the air conditioner and indoor unit, it is very easy.
Referring to Fig. 3, in an alternative embodiment, the quantity of refrigerant bypass is multiple, and corresponds to multiple and different threshold value shelves
Flow, above-mentioned steps S400 specifically include following steps：
S401 is obtained and second mesh when second target operating frequency is less than preset second threshold frequency
Mark the corresponding target cold medium flux of running frequency；
S402 matches the refrigerant bypass of corresponding threshold value shelves flow according to the target cold medium flux；
S403, control and the refrigerant bypass of the target cold medium flux successful match are as current outdoor machine and indoor unit
Connecting path.
In the present embodiment, the second target operating frequency is of different sizes, target refrigerant corresponding with the second target operating frequency
Uninterrupted also differs.Preferably, the second target operating frequency is lower, target refrigerant corresponding with the second target operating frequency
Flow is bigger.
It is understood that when the second target operating frequency level off to zero when：On the one hand, if compressor is transported with the second target
Line frequency is run, then will level off to off-mode.At this point, air conditioner is relatively weak to the adjustment effect of room air, refrigeration effect
Fruit is relatively poor.On the other hand, target cold medium flux corresponding with the second target operating frequency levels off to max-thresholds shelves, refrigeration
Compensation dynamics levels off to utmostly.By the refrigeration phase of the refrigeration of compressor and max-thresholds shelves target cold medium flux
Superposition, so that it may to weaken the influence that compressor low-frequency operation generates air conditioner refrigeration effect, to promote the comfortable of air conditioner
Property.
And when the second target operating frequency levels off to preset second threshold frequency：On the one hand, if compressor is with second
Target operating frequency is run, then will level off to normal operating conditions.On the other hand, target corresponding with the second target operating frequency
Cold medium flux levels off to minimum threshold shelves, and refrigeration compensation dynamics levels off to minimum degree.Used in refrigeration by compressor with minimum
The refrigeration of threshold value shelves target cold medium flux is superimposed, so that it may be produced to air conditioner refrigeration effect with compensating compressor low-frequency operation
Raw influence, to promote the comfort of air conditioner.
By in this present embodiment, when compressor operating frequency is relatively low, being freezed according to compressor operating frequency increase
Compensation dynamics reduces refrigeration compensation dynamics when compressor operating frequency is relatively high according to compressor operating frequency.Therefore,
No matter the running frequency height of compressor, after refrigeration compensates, the refrigeration effect of air conditioner is all close.In this way, can be into one
Step promotes the comfort of air conditioner.
It should be noted that in the specific implementation, the operating frequency range of compressor is not necessarily zero to preset second
Between threshold frequency.The second above-mentioned target operating frequency level off to zero and second target operating frequency level off to it is preset
Second threshold frequency is only used for illustrating the size correspondence of the second target operating frequency and target cold medium flux.
Likewise, in order to avoid under the conditions of family's electric power is normal, occur increasing outdoor unit of the air conditioner and room
Refrigerant exchange capacity between interior machine, it is the case where leading to energy waste, in a preferred embodiment, above-mentioned to be transported in second target
When line frequency is less than preset second threshold frequency, increase the step of the refrigerant exchange capacity between outdoor unit of the air conditioner and indoor unit
It is further comprising the steps of after rapid：
When receiving the instruction of compressor raising frequency, obtains compressor raising frequency and instruct corresponding 6th target operating frequency；
Judge whether the 6th target operating frequency is less than preset 6th threshold frequency；
If so, continuing to control connecting path of the refrigerant bypass as current outdoor machine and indoor unit；
If it is not, then controlling connecting path of the refrigerant pipeline as current outdoor machine and indoor unit.
It should be noted that in the present embodiment, after receiving the instruction of compressor raising frequency, whether controls refrigerant bypass and make
It is logical as the connection of current outdoor machine and indoor unit for the connecting path of current outdoor machine and indoor unit, or control refrigerant pipeline
Road should all control compressor and be run according to the 6th target operating frequency.
In the present embodiment, when receiving the instruction of compressor raising frequency, obtains compressor raising frequency and instruct corresponding 6th target
Running frequency, and when the 6th target operating frequency is less than above-mentioned preset six threshold frequency, continue to control refrigerant bypass work
For the connecting path of current outdoor machine and indoor unit.As long as the running frequency of compressor is made to be less than preset 6th threshold value frequency
Rate just increases the refrigerant exchange capacity between outdoor unit of the air conditioner and indoor unit, ensures the refrigeration effect of air conditioner, reliability
It is high.
It is above-mentioned described the executing to simplify air conditioner control flow it is noted that in an alternative embodiment
When two target operating frequencies are less than preset second threshold frequency, the refrigerant increased between outdoor unit of the air conditioner and indoor unit is handed over
After the step of amount of changing, when receiving the instruction of compressor raising frequency, refrigerant pipeline is directly controlled as current outdoor machine and interior
The connecting path of machine, without judging whether above-mentioned 6th target operating frequency is less than preset second threshold frequency.
In addition, it is above-mentioned when second target operating frequency is less than preset second threshold frequency executing, increase empty
After the step of adjusting the refrigerant exchange capacity between the outdoor unit and indoor unit of device, if receiving shutdown command, air conditioner is controlled
Or compressor shutdown.And if receiving frequency reducing instruction (including frequency reducing instruction and quick frequency reducing instruction at a slow speed), control sky
Device is adjusted to maintain original working condition, that is, continue to control connecting path of the refrigerant bypass as current outdoor machine and indoor unit,
Alternatively, while continuing to control refrigerant bypass as the connecting path of current outdoor machine and indoor unit, obtain and current frequency reducing
Corresponding 7th target operating frequency is instructed, and controls compressor and is run with the 7th target operating frequency.
Referring to Fig. 4, in the another embodiment of this air-conditioner control method, above-mentioned compressor is being received at a slow speed executing
Frequency reducing instruct when, obtain compressor at a slow speed frequency reducing instruct corresponding first object running frequency M the step of before, air conditioner control
Method is further comprising the steps of：
S10, the current home electricity consumption general power sent after receiving detection device detection；
S20, when current home electricity consumption general power is more than preset threshold power, triggering compressor frequency reducing instruction.
It should be noted that in the present embodiment, current home electricity consumption general power refers to all electricity consumptions currently having been started up
The sum of the power that the power of device (in addition to air conditioner) is run with air conditioner according to normal mode.For example, currently have been started up
Electrical appliance is electric light, refrigerator, electromagnetic oven, and the power of electric light is 40 watts, and the power of refrigerator is 400 watts, the power of electromagnetic oven
It is 1000 watts, air conditioner is 1000 watts according to the power that normal mode is run, then, current home electricity consumption general power is exactly 2440
Watt.
In the specific implementation, detection device can be arranged on family's transmission line of electricity main line, it is always electric to detect household electricity
Stream, to obtain household electricity general power.
After receiving current home electricity consumption general power, the household electricity general power and preset threshold power are made into ratio
Compared with.If current home electricity consumption general power is less than preset threshold power, illustrate to run according to normal mode even if air conditioner
Be not in the case where being spaced apart tripping, then being run according to normal mode at this point it is possible to directly control air conditioner, without triggering pressure
Contracting machine frequency reducing instructs.If current home electricity consumption general power is more than preset threshold power, if illustrating air conditioner according to normal
Mode operation, it is possible to the case where being spaced apart tripping occur, then at this time, it is necessary to compressor frequency reducing instruction is triggered, to prevent sky
Open tripping.
It is noted that in one embodiment, preset threshold power can be arranged according to the usage time of air conditioner.Than
Such as, in the areas A, peak times of power consumption of user in the afternoon 13:00 to afternoon 16:00.When air conditioner in the afternoon 13:00 to afternoon
16:In use, because network voltage pressure is larger in 00 period, preset threshold power is relatively small；When air conditioner was on the same day
16:00 to the next afternoon 13:In use, because power grid pressure is smaller in 00 period, preset threshold power is relatively small.
In another embodiment, preset threshold power can be arranged according to air conditioner using position.For example, the areas B are set
There is power station.When air conditioner close to the areas B position in use, because network voltage is more steady, preset threshold power is relatively large；
When air conditioner far from the areas B position in use, because voltage ripple of power network is larger, preset threshold power is relatively small.
Preferably, preset threshold power can be arranged by User Defined.In this way, when user can be according to the use of air conditioner
Between and using position, preset threshold power is set, it is very convenient.
It should be noted that if preset threshold power is arranged by User Defined, air conditioner is answered in manufacture
When the size of the threshold power with initial preset, the threshold power of the initial preset is not limited herein.
Corresponding, the present invention also proposes a kind of air conditioner, including processor (not shown), memory (not shown) and
The air conditioner control program being stored in memory is realized as described above when air conditioner control program is executed by processor
The step of air-conditioner control method.
Optionally, air conditioner further includes two-way valve (not shown), the first capillary (not shown) and the second capillary
(not shown), the first capillary connect outdoor unit and form refrigerant pipeline with indoor unit, and the second capillary and the first capillary are simultaneously
Connection setting forms refrigerant bypass, and the cold medium flux flowed through in the first capillary per unit time was more than in the second capillary per unit time
The cold medium flux flowed through；Processor is used for output low frequency mode control signal and normal mode control signal；Two-way valve is used for
The second capillary of signal communication is controlled according to low frequency mode, so that connection of second capillary as current outdoor machine and indoor unit
Access；And the first capillary is connected to according to normal mode control signal, so that the first capillary is as current outdoor machine and room
The connecting path of interior machine.
Optionally, air conditioner further includes two-way valve (not shown), first throttle valve (not shown) and second throttle,
First throttle valve connects outdoor unit and indoor unit and forms refrigerant pipeline, second throttle be arranged in parallel with first throttle valve to be formed it is cold
Matchmaker bypasses, and the cold medium flux flowed through in the first throttle valve unit interval is more than stream in the second section (not shown) stream valve unit interval
The cold medium flux crossed；Processor is used for output low frequency mode control signal and normal mode control signal；Two-way valve is used for root
Signal communication second throttle is controlled according to low frequency mode, so that second throttle is logical as the connection of current outdoor machine and indoor unit
Road；And first throttle valve is connected to according to normal mode control signal, so that first throttle valve is as current outdoor machine and interior
The connecting path of machine.
The foregoing is merely the preferred embodiment of the present invention, are not intended to limit the scope of the invention, every at this
Under the inventive concept of invention, using equivalent structure transformation made by description of the invention and accompanying drawing content, or directly/use indirectly
In the scope of patent protection that other related technical areas are included in the present invention.
Claims (16)
1. a kind of air-conditioner control method, which is characterized in that include the following steps：
When receiving compressor frequency reducing instruction at a slow speed, obtaining compressor, frequency reducing instructs corresponding first object running frequency at a slow speed
M；
When the first object running frequency M is less than preset first threshold frequency N, the compressor is controlled according to preset
Fluctuation model is run, under the fluctuation model, running frequency fluctuation in frequency range [M, M*N] of the compressor,
In, the K is more than or equal to 1；
When receiving compressor quick frequency reducing instruction, obtains the quick frequency reducing of compressor and instruct corresponding second object run frequency
Rate；
When second target operating frequency is less than preset second threshold frequency, increase outdoor unit of the air conditioner and indoor unit
Between refrigerant exchange capacity.
2. air-conditioner control method as described in claim 1, which is characterized in that the compressor also has limit frequency pattern, institute
It is described to be less than in advance in the first object running frequency M when stating first object running frequency less than preset first threshold frequency N
If first threshold frequency N when, control the compressor and run according to preset fluctuation model, under the fluctuation model, institute
State running frequency fluctuation in frequency range [M, M*N] of compressor, wherein the step of K is more than or equal to 1 also wraps
It includes：
The compressor is controlled according to preset fluctuation model and preset limit frequency pattern alternate run, in the limit frequency pattern
Under, the running frequency of the compressor is the first object running frequency M.
3. air-conditioner control method as claimed in claim 2, which is characterized in that the control compressor is according to fluctuation mould
When formula is run, the air-conditioner control method further includes：
Shielding receives the new quick frequency reducing instruction of compressor and compressor, and frequency reducing instructs at a slow speed.
4. air-conditioner control method as claimed in claim 2, which is characterized in that in the control compressor according to limit frequency
When mode operation, the air-conditioner control method further includes：
When receiving compressor frequency reducing instruction, the running frequency that the compressor is controlled according to compressor frequency reducing instruction drops
Down to third target operating frequency.
5. air-conditioner control method as claimed in claim 2, which is characterized in that further include after the step S200：
The instruction of compressor raising frequency is being received, the running frequency that the compressor is controlled according to compressor raising frequency instruction increases
To the 4th target operating frequency；
Judge whether the 4th target operating frequency is less than preset first threshold frequency；
If so, control compressor continues according to preset fluctuation model and preset limit frequency pattern alternate run；
It is run according to the 4th target operating frequency if it is not, then controlling compressor compresses machine.
6. air-conditioner control method as claimed in claim 2, which is characterized in that described in the first object running frequency M
When less than preset first threshold frequency N, controls the compressor and run according to preset fluctuation model, in the fluctuation model
Under, running frequency fluctuation in frequency range [M, M*N] of the compressor, wherein the step of K is more than or equal to 1
Further include later：
When receiving the instruction of compressor raising frequency, the compressor operating frequency is controlled according to compressor raising frequency instruction and is increased
It is run to the 5th target operating frequency, and according to the 5th target operating frequency.
7. air-conditioner control method as claimed in claim 2, which is characterized in that the air conditioner further includes wind turbine, it is described
It is described in the first object running frequency M when first object running frequency is less than the preset first threshold frequency
When less than preset first threshold frequency N, controls the compressor and run according to preset fluctuation model, in the fluctuation model
Under, running frequency fluctuation in frequency range [M, M*N] of the compressor, wherein the step of K is more than or equal to 1
Further include：
The wind speed of the wind turbine is set according to the first object running frequency of the compressor.
8. the air-conditioner control method as described in claim 1 any one, the control compressor is according to preset wave
Dynamic mode operation, under the fluctuation model, the running frequency of the compressor is in frequency range [M, K*N] the step of fluctuation
It specifically includes：
The running frequency for controlling the compressor is in cyclically-varying, and the maximum frequency of operation of the compressor is K*N, described
The minimum running frequency of compressor is M.
9. air-conditioner control method as described in claim 1, which is characterized in that the air conditioner includes connecting the outdoor unit
Refrigerant pipeline with indoor unit and the electric expansion valve on the refrigerant pipeline, the increase outdoor unit of the air conditioner and room
Refrigerant exchange capacity between interior machine includes：
Increase the aperture of the electric expansion valve.
10. air-conditioner control method as described in claim 1, which is characterized in that the air conditioner includes connecting the outdoor
The refrigerant pipeline of machine and indoor unit and the refrigerant bypass being arranged in parallel with the refrigerant pipeline；In the refrigerant bypass unit interval
The cold medium flux flowed through is more than the cold medium flux flowed through in the refrigerant pipeline unit interval；
The refrigerant exchange capacity increased between outdoor unit of the air conditioner and indoor unit includes：
It is switched to connecting path of the refrigerant bypass as current outdoor machine and indoor unit from the refrigerant pipeline.
11. air-conditioner control method as claimed in claim 10, which is characterized in that the refrigerant pipeline and refrigerant bypass pass through
Two-way valve switches over control.
12. air-conditioner control method as claimed in claim 10, which is characterized in that the quantity of the refrigerant bypass be it is multiple,
And corresponding multiple and different threshold value shelves flows, the step S400 are specifically included：
When second target operating frequency is less than preset second threshold frequency, obtain and second target operating frequency
Corresponding target cold medium flux；
The refrigerant bypass of corresponding threshold value shelves flow is matched according to the target cold medium flux；
Connecting path of the refrigerant bypass of control and the target cold medium flux successful match as current outdoor machine and indoor unit.
13. air-conditioner control method as claimed in claim 10, which is characterized in that described in second target operating frequency
When less than preset second threshold frequency, after the step of increasing the refrigerant exchange capacity between outdoor unit of the air conditioner and indoor unit
Further include：
When receiving the instruction of compressor raising frequency, obtains compressor raising frequency and instruct corresponding 6th target operating frequency；
Judge whether the 6th target operating frequency is less than the preset second threshold frequency；
If so, controlling the connecting path of current outdoor machine and indoor unit described in the refrigerant bypass；
If it is not, then controlling connecting path of the refrigerant pipeline as current outdoor machine and indoor unit.
14. air-conditioner control method as claimed in claim 10, which is characterized in that described in second target operating frequency
When less than preset second threshold frequency, after the step of increasing the refrigerant exchange capacity between outdoor unit of the air conditioner and indoor unit
Further include：
When receiving the instruction of compressor raising frequency, the connection for controlling the refrigerant pipeline as current outdoor machine and indoor unit is logical
Road.
15. the air-conditioner control method as described in claim 1-14 any one, which is characterized in that received described in executing
To compressor at a slow speed frequency reducing instruct when, obtain compressor at a slow speed frequency reducing instruct corresponding first object running frequency M the step of it
Before, the air-conditioner control method includes the following steps：
The current home electricity consumption general power sent after receiving detection device detection；
When the current home electricity consumption general power is more than preset threshold power, the compressor frequency reducing instruction is triggered.
16. a kind of air conditioner, which is characterized in that including processor, the air conditioner control of memory and storage in the memory
Processing procedure sequence realizes the air-conditioning as described in claim 1-15 any one when the control program is executed by the processor
The step of device control method.
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| WO2019218642A1 (en) * | 2018-05-17 | 2019-11-21 | 广东美的制冷设备有限公司 | Air conditioner control method and air conditioner |
| CN115789914A (en) * | 2022-11-25 | 2023-03-14 | 宁波奥克斯电气股份有限公司 | Air conditioner control method and device and air conditioner |
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