CN108397375A - Control method, air conditioner and the storage medium of compressor - Google Patents
Control method, air conditioner and the storage medium of compressor Download PDFInfo
- Publication number
- CN108397375A CN108397375A CN201810126305.5A CN201810126305A CN108397375A CN 108397375 A CN108397375 A CN 108397375A CN 201810126305 A CN201810126305 A CN 201810126305A CN 108397375 A CN108397375 A CN 108397375A
- Authority
- CN
- China
- Prior art keywords
- pressure
- compressor
- frequency
- inspiration
- expulsion
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
- F04B49/06—Control using electricity
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Control Of Positive-Displacement Pumps (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The present invention discloses a kind of control method of compressor, by after the first preset duration of compressor start, monitor the pressure at expulsion and pressure of inspiration(Pi) of compressor, judge whether the pressure at expulsion detected and pressure of inspiration(Pi) are in corresponding presetting range, when the pressure at expulsion and pressure of inspiration(Pi) are in except corresponding presetting range, adjust the running frequency of compressor, the pressure at expulsion and pressure of inspiration(Pi) are limited in corresponding presetting range, ensure compressor normal operation in normal operation pressure limit.Invention additionally discloses a kind of air conditioner and storage mediums.The invention avoids compressor longtime runnings except normal operation pressure limit to the damage of compressor, improves the service life of compressor, improves the operational reliability of compressor and air conditioner.
Description
Technical field
The present invention relates to a kind of air conditioner technical field more particularly to control method of compressor, air conditioner and storages to be situated between
Matter.
Background technology
Precision air conditioner needs daily non-stop run in 24 hours, and the core of air-conditioning is compressor, ensures that precision air conditioner is long-term
The necessary condition of uninterrupted operation is to ensure that compressor is run in normal range of operation.
Compressor can be attached to corresponding compressor specifications in manufacture comprising compressor normal operation pressure limit
Figure, to ensure that compressor is run in normal operation pressure limit.But in compressor operating, similar high pressure is only gived
The simple pressure limit such as alarm and low pressure alarming, and control method is complex, and impacted factor variations compressor may
It is run except normal operation pressure limit, in compressor longtime running when except normal operation pressure limit, by serious shadow
Ring service life and the operational reliability of compressor.
Invention content
The main purpose of the present invention is to provide a kind of control methods of compressor, it is intended to extend the service life of compressor, carry
Its high operational reliability.
To achieve the above object, the control method of compressor proposed by the present invention, includes the following steps：
After the first preset duration of compressor start, the pressure at expulsion P of compressor is monitoredkWith pressure of inspiration(Pi) Po；
Judge the pressure at expulsion PkWith pressure of inspiration(Pi) PoWhether corresponding presetting range is in；
If it is not, the running frequency of compressor is then adjusted, by the pressure at expulsion PkWith the pressure of inspiration(Pi) PoIt is limited in pair
The presetting range answered.
Further, described to judge the pressure at expulsion PkWith pressure of inspiration(Pi) PoWhether the step of corresponding presetting range is in
Suddenly, including：
Judge the pressure at expulsion P according to preset compressor operating pressure limit figurekWith pressure of inspiration(Pi) PoWhether in pair
The presetting range answered.
Further, described that the pressure at expulsion P is judged according to preset compressor operating pressure limit figurekAnd pressure of inspiration(Pi)
Power PoThe step of whether being in corresponding presetting range, including：
With the pressure of inspiration(Pi) P of compressoroFor x-axis, with the pressure at expulsion P of compressorkPlane coordinate system is built for y-axis；
First function area corresponding with preset compressor operating pressure limit figure is indicated in the plane coordinate system
Domain；
The pressure at expulsion P that will be detectedkWith pressure of inspiration(Pi) PoThe pressure coordinates point of the plane coordinate system is converted to, is judged
Whether the pressure coordinates point falls into the first function region.
Further, described if it is not, the running frequency of compressor is then adjusted, by the pressure at expulsion PkWith the air-breathing
Pressure PoThe step of being limited in corresponding presetting range, including：
As the pressure at expulsion PkWith pressure of inspiration(Pi) PoWhen corresponding pressure coordinates point is located at except first function region, sentence
Whether the pressure coordinates point that breaks is located at second function region；
If so, limitation compressor raising frequency or frequency reducing, by the pressure at expulsion PkWith the pressure of inspiration(Pi) PoIt is limited in pair
The presetting range answered；
If it is not, the then current operation frequency control compressor raising frequency based on compressor or frequency reducing, or triggering alarm is simultaneously
Close compressor.
Further, described if so, limitation compressor raising frequency or frequency reducing, by the pressure at expulsion PkWith the air-breathing
Pressure PoThe step of being limited in corresponding presetting range, including：
As the pressure at expulsion PkWith pressure of inspiration(Pi) PoWhen corresponding pressure coordinates point is located at second function region, pressure is obtained
The current operation frequency of contracting machine；
When the current operation frequency reaches preset low-limit frequency, compressor frequency reducing is limited, by the pressure at expulsion
PkWith the pressure of inspiration(Pi) PoIt is limited in corresponding presetting range；
When the current operation frequency reaches preset highest frequency, compressor raising frequency is limited, by the pressure at expulsion
PkWith the pressure of inspiration(Pi) PoIt is limited in corresponding presetting range.
Further, described if so, limitation compressor raising frequency or frequency reducing, by the pressure at expulsion PkWith the air-breathing
Pressure PoThe step of being limited in corresponding presetting range, including：
As the pressure at expulsion PkWith pressure of inspiration(Pi) PoWhen corresponding pressure coordinates point is located at second function region, institute is determined
State position of the pressure coordinates point in second function region；
When the pressure coordinates point is located at the first area in second function region, compressor raising frequency is limited, by institute
State pressure at expulsion PkWith the pressure of inspiration(Pi) PoIt is limited in corresponding presetting range；
When the pressure coordinates point is located at the second area in second function region, compressor frequency reducing is limited, by institute
State pressure at expulsion PkWith the pressure of inspiration(Pi) PoIt is limited in corresponding presetting range.
Further, described if it is not, the then current operation frequency control compressor raising frequency or frequency reducing based on compressor, or touch
After hair alarm the step of close compressor, including：
As the pressure at expulsion PkWith pressure of inspiration(Pi) PoCorresponding pressure coordinates point is located at the third except second function region
When function area, judge whether the current operation frequency of compressor is more than preset low-limit frequency；
If so, controlling compressor with the first predetermined amplitude frequency reducing third preset duration, directly at interval of the second preset duration
It is not belonging to the third function area to the pressure coordinates point or the running frequency of the compressor is down to preset low-limit frequency；
If it is not, then triggering the prompt of air-breathing low pressure alarming and close compressor；
Wherein, the first preset duration described in the second preset duration ＜ described in the third preset duration ＜.
Further, described if it is not, the then current operation frequency control compressor raising frequency or frequency reducing based on compressor, or touch
After hair alarm the step of close compressor, including：
As the pressure at expulsion PkWith pressure of inspiration(Pi) PoCorresponding pressure coordinates point is located at the 4th except second function region
When function area, judge whether the current operation frequency of compressor is more than preset low-limit frequency；
If so, controlling compressor with the 5th preset duration of the second predetermined amplitude frequency reducing, directly at interval of the 4th preset duration
It is not belonging to the 4th function area to the pressure coordinates point or the running frequency of the compressor is down to preset low-limit frequency；
If it is not, then triggering the prompt of exhaust alarm for high voltage and close compressor；
Wherein, the first preset duration described in the 4th preset duration ＜ described in the 5th preset duration ＜.
Further, described if it is not, the then current operation frequency control compressor raising frequency or frequency reducing based on compressor, or touch
After hair alarm the step of close compressor, including：
As the pressure at expulsion PkWith pressure of inspiration(Pi) PoCorresponding pressure coordinates point is located at the 5th except second function region
When function area, judge whether the current operation frequency of compressor is less than preset highest frequency；
If so, controlling compressor with the 7th preset duration of third predetermined amplitude raising frequency, directly at interval of the 6th preset duration
It is not belonging to the 5th function area to the pressure coordinates point or the running frequency of the compressor rises to preset highest frequency；
If it is not, then in Po＞ PomaxWhen triggering air-breathing alarm for high voltage prompt and close compressor, or in Po≤PomaxWhen trigger
It is vented low pressure alarming prompt and close compressor；
Wherein, the first preset duration described in the 6th preset duration ＜ described in the 7th preset duration ＜, PomaxIt is preset
Maximum inspiratory pressure.
Further, as the pressure at expulsion P of compressorkWith pressure of inspiration(Pi) PoWhen in corresponding presetting range, control compression
Machine continues to run by current control logic.
Present invention further propose that a kind of air conditioner, including compressor, memory, processor and it is stored in the memory
And the control program that can be run on the processor, it is realized when the control program is executed by the processor as described above
The step of control method of compressor.
The present invention also proposes a kind of storage medium, and the storage medium storing control program, the control program is handled
The step of device realizes the control method of compressor as described above when executing.
The control method of the compressor of the embodiment of the present invention, by the way that after the first preset duration of compressor start, monitoring is pressed
The pressure at expulsion and pressure of inspiration(Pi) of contracting machine, judge whether the pressure at expulsion detected and pressure of inspiration(Pi) are in corresponding preset model
It encloses, when the pressure at expulsion and pressure of inspiration(Pi) are in except corresponding presetting range, adjusts the running frequency of compressor, it will
The pressure at expulsion and pressure of inspiration(Pi) are limited in corresponding presetting range, ensure that compressor is normal in normal operation pressure limit
Operation.The control method is adjusted when the pressure at expulsion and pressure of inspiration(Pi) for judging compressor are in except corresponding presetting range
Pressure at expulsion and pressure of inspiration(Pi) are limited in corresponding presetting range, ensure that compressor operating exists by the running frequency of compressor
In normal operation pressure limit, compressor longtime running is avoided except normal operation pressure limit to the damage of compressor,
The service life for improving compressor improves the operational reliability of compressor and air conditioner.
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 hardware architecture diagram of one embodiment of air conditioner of the present invention；
Fig. 2 is the flow diagram of one embodiment of control method of the compressor of the present invention；
Fig. 3 is the flow diagram of mono- embodiments of step S20 in Fig. 2；
Fig. 4 is the schematic diagram of one embodiment of compressor operating pressure limit figure of the present invention；
Fig. 5 is the flow diagram of mono- embodiments of step S21 in Fig. 3；
Fig. 6 is the flow diagram of mono- embodiments of step S30 in Fig. 2；
Fig. 7 is the flow diagram of step S32 first embodiments in Fig. 6；
Fig. 8 is the flow diagram of step S32 second embodiments in Fig. 6；
Fig. 9 is the flow diagram of step S33 first embodiments in Fig. 6；
Figure 10 is the flow diagram of step S33 second embodiments in Fig. 6；
Figure 11 is the flow diagram of step S33 3rd embodiments in Fig. 6.
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
It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not intended to limit the present invention.
As shown in Figure 1, Fig. 1 is the hardware architecture diagram of one embodiment of air conditioner of the present invention.
As shown in Figure 1, air conditioner 100 may include：Processor 1001, such as CPU, network interface 1004, user interface
1003, memory 1005, communication bus 1002.Wherein, communication bus 1002 is for realizing the connection communication between these components.
User interface 1003 may include display unit (Display), input unit such as interactive interface, in the present invention air conditioner
100 can interact during running software with user terminal, when carrying out parameter setting or debugging to air conditioner 100, survey
Examination personnel or designer can carry out the input of data information using user interface 1003, and optional user interface 1003 can also wrap
Include standard wireline interface and wireless interface.Network interface 1004 may include optionally standard wireline interface and wireless interface
(such as WI-FI interfaces).Memory 1005 can be high-speed RAM memory, can also be stable memory (non-volatile
), such as magnetic disk storage memory.Memory 1005 optionally can also be the storage dress independently of aforementioned processor 1001
It sets.
Optionally, air conditioner 100 can also include camera, RF (Radio Frequency, radio frequency) circuit, sensor,
Voicefrequency circuit, WiFi module etc..Wherein, sensor such as optical sensor, motion sensor, air quality sensor and its
His sensor.Specifically, optical sensor may include ambient light sensor and proximity sensor, wherein ambient light sensor can root
The brightness of display unit is adjusted according to the light and shade of ambient light, proximity sensor can be opened when detecting that people comes into air conditioner 100
Open display unit and/or backlight.As environment measuring element, air quality sensor can be temperature sensor, humidity sensor
Device, carbon dioxide sensor and PM2.5 sensors, the air quality sensor in the present embodiment is preferably Temperature Humidity Sensor,
To detect the indoor and outdoor humiture of air conditioner local environment in real time；Certainly, the air conditioner 100 can also configure gyroscope, gas
The other sensors such as meter, hygrometer, thermometer, infrared sensor are pressed, details are not described herein.The present embodiment is in order to accurately detect
The pressure at expulsion P of air conditionerkWith pressure of inspiration(Pi) Po, pressure sensor is both provided in the exhaust outlet and air entry of compressor.
It will be understood by those skilled in the art that hardware configuration shown in Fig. 1 does not constitute the restriction to air conditioner 100,
May include either combining certain components or different components arrangement than illustrating more or fewer components.
The primary solutions of the embodiment of the present invention are：By the way that after the first preset duration of compressor start, monitoring is compressed
The pressure at expulsion and pressure of inspiration(Pi) of machine, judge whether the pressure at expulsion detected and pressure of inspiration(Pi) are in corresponding presetting range,
When the pressure at expulsion and pressure of inspiration(Pi) are in except corresponding presetting range, the running frequency of compressor is adjusted, by institute
It states pressure at expulsion and pressure of inspiration(Pi) is limited in corresponding presetting range, ensure that compressor is normally transported in normal operation pressure limit
Row.The control method adjusts pressure when the pressure at expulsion and pressure of inspiration(Pi) for judging compressor are in except corresponding presetting range
Pressure at expulsion and pressure of inspiration(Pi) are limited in corresponding presetting range, ensure that compressor operating just by the running frequency of contracting machine
Within the scope of normal operating pressure, compressor longtime running is avoided except normal operation pressure limit to the damage of compressor, is carried
In the high service life of compressor, improve the operational reliability of compressor and air conditioner.
As shown in Figure 1, as may include that operating system, network are logical in a kind of memory 1005 of computer storage media
Believe module and control program.
In air conditioner 100 shown in Fig. 1, air conditioner 100 is equipped with pressure sensor to detect the pressure at expulsion of compressor
PkWith pressure of inspiration(Pi) Po, network interface 1004 is mainly used for connecting background server or big data high in the clouds, with background server or big
Data high in the clouds carries out data communication, to obtain compressor normal operation pressure limit figure；User interface 1003 is mainly used for connecting
Client (user terminal), with client into row data communication；And processor 1001 can call the control that memory 1005 stores
Program, and execute following operation：
After the first preset duration of compressor start, the pressure at expulsion P of compressor is monitoredkWith pressure of inspiration(Pi) Po；
Judge the pressure at expulsion PkWith pressure of inspiration(Pi) PoWhether corresponding presetting range is in；
If it is not, the running frequency of compressor is then adjusted, by the pressure at expulsion PkWith the pressure of inspiration(Pi) PoIt is limited in pair
The presetting range answered.
Further, processor 1001 may call upon the control program stored in memory 1005 and execute following operation：
Judge the pressure at expulsion P according to preset compressor operating pressure limit figurekWith pressure of inspiration(Pi) PoWhether in pair
The presetting range answered.
Further, processor 1001 may call upon the control program stored in memory 1005 and execute following operation：
With the pressure of inspiration(Pi) P of compressoroFor x-axis, with the pressure at expulsion P of compressorkPlane coordinate system is built for y-axis；
First function area corresponding with preset compressor operating pressure limit figure is indicated in the plane coordinate system
Domain；
The pressure at expulsion P that will be detectedkWith pressure of inspiration(Pi) PoThe pressure coordinates point of the plane coordinate system is converted to, is judged
Whether the pressure coordinates point falls into the first function region.
Further, processor 1001 may call upon the control program stored in memory 1005 and execute following operation：
As the pressure at expulsion PkWith pressure of inspiration(Pi) PoWhen corresponding pressure coordinates point is located at except first function region, sentence
Whether the pressure coordinates point that breaks is located at second function region；
If so, limitation compressor raising frequency or frequency reducing, by the pressure at expulsion PkWith the pressure of inspiration(Pi) PoIt is limited in pair
The presetting range answered；
If it is not, the then current operation frequency control compressor raising frequency based on compressor or frequency reducing, or triggering alarm is simultaneously
Close compressor.
Further, processor 1001 may call upon the control program stored in memory 1005 and execute following operation：
As the pressure at expulsion PkWith pressure of inspiration(Pi) PoWhen corresponding pressure coordinates point is located at second function region, pressure is obtained
The current operation frequency of contracting machine；
When the current operation frequency reaches preset low-limit frequency, compressor frequency reducing is limited, by the pressure at expulsion
PkWith the pressure of inspiration(Pi) PoIt is limited in corresponding presetting range；
When the current operation frequency reaches preset highest frequency, compressor raising frequency is limited, by the pressure at expulsion
PkWith the pressure of inspiration(Pi) PoIt is limited in corresponding presetting range.
Further, processor 1001 may call upon the control program stored in memory 1005 and execute following operation：
As the pressure at expulsion PkWith pressure of inspiration(Pi) PoWhen corresponding pressure coordinates point is located at second function region, institute is determined
State position of the pressure coordinates point in second function region；
When the pressure coordinates point is located at the first area in second function region, compressor raising frequency is limited, by institute
State pressure at expulsion PkWith the pressure of inspiration(Pi) PoIt is limited in corresponding presetting range；
When the pressure coordinates point is located at the second area in second function region, compressor frequency reducing is limited, by institute
State pressure at expulsion PkWith the pressure of inspiration(Pi) PoIt is limited in corresponding presetting range.
Further, processor 1001 may call upon the control program stored in memory 1005 and execute following operation：
As the pressure at expulsion PkWith pressure of inspiration(Pi) PoCorresponding pressure coordinates point is located at the third except second function region
When function area, judge whether the current operation frequency of compressor is more than preset low-limit frequency；
If so, controlling compressor with the first predetermined amplitude frequency reducing third preset duration, directly at interval of the second preset duration
It is not belonging to the third function area to the pressure coordinates point or the running frequency of the compressor is down to preset low-limit frequency；
If it is not, then triggering the prompt of air-breathing low pressure alarming and close compressor；
Wherein, the first preset duration described in the second preset duration ＜ described in the third preset duration ＜.
Further, processor 1001 may call upon the control program stored in memory 1005 and execute following operation：
As the pressure at expulsion PkWith pressure of inspiration(Pi) PoCorresponding pressure coordinates point is located at the 4th except second function region
When function area, judge whether the current operation frequency of compressor is more than preset low-limit frequency；
If so, controlling compressor with the 5th preset duration of the second predetermined amplitude frequency reducing, directly at interval of the 4th preset duration
It is not belonging to the 4th function area to the pressure coordinates point or the running frequency of the compressor is down to preset low-limit frequency；
If it is not, then triggering the prompt of exhaust alarm for high voltage and close compressor；
Wherein, the first preset duration described in the 4th preset duration ＜ described in the 5th preset duration ＜.
Further, processor 1001 may call upon the control program stored in memory 1005 and execute following operation：
As the pressure at expulsion PkWith pressure of inspiration(Pi) PoCorresponding pressure coordinates point is located at the 5th except second function region
When function area, judge whether the current operation frequency of compressor is less than preset highest frequency；
If so, controlling compressor with the 7th preset duration of third predetermined amplitude raising frequency, directly at interval of the 6th preset duration
It is not belonging to the 5th function area to the pressure coordinates point or the running frequency of the compressor rises to preset highest frequency；
If it is not, then in Po＞ PomaxWhen triggering air-breathing alarm for high voltage prompt and close compressor, or in Po≤PomaxWhen trigger
It is vented low pressure alarming prompt and close compressor；
Wherein, the first preset duration described in the 6th preset duration ＜ described in the 7th preset duration ＜, PomaxIt is preset
Maximum inspiratory pressure.
Further, processor 1001 may call upon the control program stored in memory 1005 and execute following operation：
As the pressure at expulsion P of compressorkWith pressure of inspiration(Pi) PoWhen in corresponding presetting range, control compressor continue by
Current control logic operation.
Further, it is the flow diagram of one embodiment of control method of the compressor of the present invention with reference to Fig. 2, Fig. 2.
In the present embodiment, the control method of the compressor, includes the following steps：
S10：After the first preset duration of compressor start, the pressure at expulsion P of compressor is monitoredkWith pressure of inspiration(Pi) Po；
In the present embodiment, the control method of the compressor is mainly used for controlling compressor operating in normal operation pressure model
In enclosing, compressor longtime running is avoided to damage compressor except normally-pressured neighbor, seriously affects compressor and air conditioner
Service life and operational reliability.For this purpose, the present invention is after air conditioner startup, using be set to exhaust outlet of compressor and condenser it
Between first pressure sensor detection compressor pressure at expulsion Pk, using being set between compressor air suction mouth and evaporator
Second pressure sensor detects the pressure of inspiration(Pi) P of compressoro.In the first preset duration of compressor start operation, without
Compressor operating pressure limit judges that the control for entering monitoring pressure of inspiration(Pi) and pressure at expulsion in real time after the first preset duration is patrolled
Volume, first preset duration is 4min~6min, preferably 5min.
S20：Judge the pressure at expulsion PkWith pressure of inspiration(Pi) PoWhether corresponding presetting range is in；
In preset control logic, according to the pressure at expulsion P monitored in real timekWith pressure of inspiration(Pi) Po, judge the exhaust pressure
Power PkWith pressure of inspiration(Pi) PoWhether corresponding presetting range is in.The presetting range is firstly the need of satisfaction：Minimum pressure at expulsion
Pkmin≤ pressure at expulsion Pk≤ maximum pressure at expulsion Pkmax, minimal inspiratory pressure Pomin≤ pressure of inspiration(Pi) Pk≤ maximum inspiratory pressure
Pomax；Secondly, pressure at expulsion is excessively high, pressure of inspiration(Pi) is too low in order to further exclude, and pressure at expulsion is excessively high, pressure of inspiration(Pi) is excessively high,
To the longevity of compressor when air conditioner caused by pressure at expulsion is too low, pressure of inspiration(Pi) is excessively high is run on except normal operation pressure limit
It is influenced caused by life and running stability, advanced optimizes pressure at expulsion PkWith pressure of inspiration(Pi) PoCorresponding presetting range, such as into one
Step with reference to Fig. 3, Fig. 3 provide it is a kind of in the way of illustrating to pressure at expulsion PkWith pressure of inspiration(Pi) PoCorresponding presetting range carries out
Judge：Such as,
S21：Judge the pressure at expulsion P according to preset compressor operating pressure limit figurekWith pressure of inspiration(Pi) PoWhether locate
In corresponding presetting range.
It is the schematic diagram of one embodiment of compressor operating pressure limit figure of the present invention with further reference to Fig. 4, Fig. 4.Fig. 4 is only
A kind of corresponding compressor of model, when using the compressor of other models, Fig. 4 also accordingly replaces with the corresponding compressor
Operating pressure areal map.As shown in figure 4, carrying out the pressure at expulsion PkWith pressure of inspiration(Pi) PoWhether corresponding preset model is in
It encloses when being judged, it is main according to the pressure at expulsion P detectedkWith pressure of inspiration(Pi) PoWhether corresponding pressure coordinates point is in Fig. 4 institutes
Show in the first function region 1 in compressor operating pressure limit figure, if so, the pressure at expulsion P of judgement air conditionerkAnd air-breathing
Pressure PoIn corresponding presetting range, if it is not, then judging the pressure at expulsion P of air conditionerkWith pressure of inspiration(Pi) PoIn corresponding pre-
It sets except range.
If it is not, thening follow the steps S30；
S30：The running frequency for adjusting compressor, by the pressure at expulsion PkWith the pressure of inspiration(Pi) PoIt is limited in correspondence
Presetting range；
As the pressure at expulsion P of judgement air conditionerkWith pressure of inspiration(Pi) PoWhen except corresponding presetting range, to avoid pressing
Contracting captain operates in the influence caused by compressor causes service life and running stability except normal operation pressure limit the phase, needs
To the pressure at expulsion P of compressorkWith pressure of inspiration(Pi) PoIt is adjusted.Due to pressure at expulsion PkWith pressure of inspiration(Pi) PoMainly according to room
The running frequency of inside and outside rotation speed of fan, the aperture of restricting element and compressor is related, thus can pass through the fortune of adjusting compressor
Line frequency, by the pressure at expulsion PkWith pressure of inspiration(Pi) PoIt is limited in corresponding presetting range, ensures that compressor operating is normally being transported
In row pressure limit, ensure service life and the running stability of compressor.
If so, thening follow the steps S40；
S40：Control compressor continues to run by current control logic.
Wherein, the second preset duration described in the first preset duration ＞.
As the pressure at expulsion P of judgement air conditionerkWith pressure of inspiration(Pi) PoWhen in corresponding presetting range, judgement air conditioner fortune
Row is normal, and at this time to the running frequency of compressor without limitation, compressor can continue according to the demand of air conditioner unit according to working as
Preceding control logic operation.
The control method of the compressor of the embodiment of the present invention, by the way that after the first preset duration of compressor start, monitoring is pressed
The pressure at expulsion and pressure of inspiration(Pi) of contracting machine, judge whether the pressure at expulsion detected and pressure of inspiration(Pi) are in corresponding preset model
It encloses, when the pressure at expulsion and pressure of inspiration(Pi) are in except corresponding presetting range, adjusts the running frequency of compressor, it will
The pressure at expulsion and pressure of inspiration(Pi) are limited in corresponding presetting range, ensure that compressor is normal in normal operation pressure limit
Operation.The control method is adjusted when the pressure at expulsion and pressure of inspiration(Pi) for judging compressor are in except corresponding presetting range
Pressure at expulsion and pressure of inspiration(Pi) are limited in corresponding presetting range, ensure that compressor operating exists by the running frequency of compressor
In normal operation pressure limit, compressor longtime running is avoided except normal operation pressure limit to the damage of compressor,
The service life for improving compressor improves the operational reliability of compressor and air conditioner.
Further, reference Fig. 5, the control method of the compressor based on above-described embodiment, step S21, including：
S211：With the pressure of inspiration(Pi) P of compressoroFor x-axis, with the pressure at expulsion P of compressorkPlane coordinates is built for y-axis
System；
In the present embodiment, in order to further using the operating pressure areal map of compressor to the pressure at expulsion P of air conditionerk
With pressure of inspiration(Pi) PoWhether judged in corresponding presetting range, by the operating pressure areal map of compressor with plane coordinates
The mode of system is converted to function area.Specially with the pressure of inspiration(Pi) P of compressoroFor x-axis, with the pressure at expulsion P of compressorkFor y
Axis builds plane coordinate system, will be in the normal operation pressure correspondence mappings to the plane coordinate system of compressor.
S212：The first letter corresponding with preset compressor operating pressure limit figure is indicated in the plane coordinate system
Number region；
When in by the plane coordinate system of the normal operation pressure correspondence mappings of the compressor to structure, y=f is utilized
(x) function, by the normal operation pressure spot (P of compressoro, Pk) plane coordinate system is shown in based on y=f (x) function
In, in addition, utilizing minimum pressure at expulsion Pkmin≤ pressure at expulsion Pk≤ maximum pressure at expulsion Pkmax, minimal inspiratory pressure Pomin≤
Pressure of inspiration(Pi) Pk≤ maximum inspiratory pressure Pomax, y is limited in [Pkmin, Pkmax], x is limited in [Pomin, Pomax], then compressor
Allow the range of operation can be with y=f1(x), y=f2(x), y=f3(x) and Pkmin≤y≤Pkmax、Pomin≤x≤Pomax
Mark, wherein y=f1(x), y=f2(x), y=f3(x) it is to match compressor to allow the fixed function of operating pressure range, then should
The compressor of fixed function mark allows operation area can be with y≤f1(x)、y≤f2(x)、y≥f3(x)、Pkmin≤y≤
Pkmax、Pomin≤x≤PomaxMark.
Since compressor has the region for needing to limit compressor raising frequency or frequency reducing in above-mentioned fixed function region, and press
The normal operation pressure limit of contracting machine need to ensure that compressor can normally and without restriction be run in the range, thus need
Y is limited in [Pkmin+ △ P, Pkmax- △ P], x is limited in [Pomin+ △ P, Pomax- △ P], then the pressure at expulsion of compressor
PkWith pressure of inspiration(Pi) PoCorresponding presetting range can be with y=f1(x)-△ P, y=f2(x)-△ P, y=f3(x)+△ P with
And Pkmin+△P≤y≤Pkmax- △ P, Pomin+△P≤x≤Pomax- △ P marks, wherein the △ P are 0.1~0.5MPa,
It is preferred that 0.2MPa, then y=f1(x)-△ P, y=f2(x)-△ P, y=f3(x) it is normal to can also be used as matching compressor by+△ P
The fixed function of operating pressure range, then the first function region 1 in Fig. 4 can be with y≤f1(x)-△ P, y≤f2(x)-
△P、y≥f3(x)+△P、Pkmin+△P≤y≤Pkmax- △ P, Pomin+△P≤x≤Pomax- △ P marks.
S213：The pressure at expulsion P that will be detectedkWith pressure of inspiration(Pi) PoThe pressure coordinates point of the plane coordinate system is converted to,
Judge whether the pressure coordinates point falls into the first function region.
When compressor normal operation pressure limit figure is shown in Fig. 4 with function area, so that it may be monitored with basis
The pressure at expulsion P of compressorkWith pressure of inspiration(Pi) PoWhether corresponding coordinate points judge whether compressor transport in first function region
Row is in normal operation pressure limit.
Further, reference Fig. 6, the control method of the compressor based on above-described embodiment, step S30, including：
S31：As the pressure at expulsion PkWith pressure of inspiration(Pi) PoCorresponding pressure coordinates point is located at except first function region
When, judge whether the pressure coordinates point is located at second function region；
In the present embodiment, according to the pressure at expulsion P real-time monitoredkWith pressure of inspiration(Pi) PoWhen carrying out pressure judgement, such as
Pressure at expulsion P described in fruitkWith pressure of inspiration(Pi) PoCorresponding pressure coordinates point is located at except first function region, is pressed as being located in Fig. 4
Second function region in contracting machine operating pressure areal map, at this time the running frequency of compressor reach allow operation low-limit frequency
Or highest frequency.The second function region can allow operation area and first function region to be indicated by compressor,
Such as when compressor allows operation area with y≤f1(x)、y≤f2(x)、y≥f3(x)、Pkmin≤y≤Pkmax、Pomin≤x≤Pomax
Mark, first function region 1 is with y≤f1(x)-△ P, y≤f2(x)-△ P, y >=f3(x)+△P、Pkmin+△P≤y≤
Pkmax- △ P, Pomin+△P≤x≤PomaxWhen-△ P marks, second function region can be with f1(x)-△ P ＜ y≤f1
(x)、f2(x)-△ P ＜ y≤f2(x)、f3(x) ＜ y ＜ f3(x)+△P、Pkmin＜ y≤Pkmin+△P、Pkmax- △ P ＜ y ＜
Pkmax、Pomin＜ x ＜ PomaxMark.
If so, thening follow the steps S32；
S32：Compressor raising frequency or frequency reducing are limited, by the pressure at expulsion PkWith the pressure of inspiration(Pi) PoIt is limited in correspondence
Presetting range；
As the pressure at expulsion PkWith pressure of inspiration(Pi) PoCorresponding pressure coordinates point is located at compressor operating pressure shown in Fig. 4
When the second function region of power areal map, the running frequency of compressor reaches the low-limit frequency or highest frequency for allowing operation, needs
It to carry out limit lifting/lowering frequency to compressor to control, namely limitation compressor continues to increase running frequency or continues to reduce frequency, with energy
Enough running frequencies by limiting compressor are raised and lowered, by the pressure at expulsion P of compressorkWith the pressure of inspiration(Pi) PoIt is corresponding
Coordinate points it is close to first function region.
If it is not, thening follow the steps S33；
S33：Current operation frequency control compressor raising frequency based on compressor or frequency reducing, or trigger alarm and close
Compressor.
As the pressure at expulsion PkWith pressure of inspiration(Pi) PoCorresponding pressure coordinates point is located at compressor operating pressure shown in Fig. 4
When the third function area of power areal map or four function areas, the pressure at expulsion of compressor is excessively high or pressure of inspiration(Pi) is too low,
The unsuitable high-frequency operation of compressor at this time damages compressor to cause discharge superheat excessively high, thus needs to carry out compressor
Frequency reducing controls, or alarm and close compressor are triggered when preset low-limit frequency is run in compressor.
As the pressure at expulsion PkWith pressure of inspiration(Pi) PoCorresponding pressure coordinates point is located at compressor operating pressure shown in Fig. 4
When five function area of power areal map, the pressure at expulsion of compressor is too low, pressure of inspiration(Pi) is too low, at this time the unsuitable low frequency of compressor
Rate run, to cause compressor liquid hazards compressor, thus need to compressor carry out raising frequency control, or compressor
Through triggering alarm and close compressor when preset highest frequency is run.
Further, with reference to Fig. 7, the control method of the compressor based on above-described embodiment, the first of step S32 implements
Example, including：
S321：As the pressure at expulsion PkWith pressure of inspiration(Pi) PoWhen corresponding pressure coordinates point is located at second function region, obtain
Take the current operation frequency of compressor；
In the present embodiment, with further reference to Fig. 4, as the pressure at expulsion P for monitoring compressorkWith pressure of inspiration(Pi) PoIt is corresponding
Pressure coordinates point (Po, Pk) when being located at second function region 2, namely pressure at expulsion P at this timekWith pressure of inspiration(Pi) PoIt is corresponding
Function y=f (x) meets：f1(x)-△ P ＜ y≤f1(x)、f2(x)-△ P ＜ y≤f2(x)、f3(x) ＜ y ＜ f3(x)+△P、
Pkmin＜ y≤Pkmin+△P、Pkmax- △ P ＜ y ＜ Pkmax、Pomin＜ x ＜ Pomax.It is limited in order to accurately control compressor
Raising frequency or limit frequency reducing need the current operation frequency for further obtaining compressor.
S322：When the current operation frequency reaches preset low-limit frequency, compressor frequency reducing is limited, by the exhaust
Pressure PkWith the pressure of inspiration(Pi) PoIt is limited in corresponding presetting range；
S323：When the current operation frequency reaches preset highest frequency, compressor raising frequency is limited, by the exhaust
Pressure PkWith the pressure of inspiration(Pi) PoIt is limited in corresponding presetting range.
When the running frequency of compressor reaches the low-limit frequency for allowing operation namely preset low-limit frequency, need to pressure
Contracting machine carries out limit frequency reducing control, namely limitation compressor continues to reduce frequency；Allow to run when the running frequency of compressor reaches
Highest frequency namely when preset highest frequency, need to carry out limit raising frequency control, namely limitation compressor after of continuing rising to compressor
High-frequency；Continue raising frequency or frequency reducing by limiting compressor, by the pressure at expulsion P of compressorkWith the pressure of inspiration(Pi) PoIt is corresponding
Coordinate points are close to first function region.
Further, with reference to Fig. 8, the control method of the compressor based on above-described embodiment, the second of step S32 implements
Example, including：
S324：As the pressure at expulsion PkWith pressure of inspiration(Pi) PoWhen corresponding pressure coordinates point is located at second function region, really
Fixed position of the pressure coordinates point in second function region；
In the present embodiment, with further reference to Fig. 4, as the pressure at expulsion P for monitoring compressorkWith pressure of inspiration(Pi) PoIt is corresponding
Pressure coordinates point (Po, Pk) when being located at second function region, namely pressure at expulsion P at this timekWith pressure of inspiration(Pi) PoCorresponding letter
Number y=f (x) meets：f1(x)-△ P ＜ y≤f1(x)、f2(x)-△ P ＜ y≤f2(x)、f3(x) ＜ y ＜ f3(x)+△P、
Pkmin＜ y≤Pkmin+△P、Pkmax- △ P ＜ y ＜ Pkmax、Pomin＜ x ＜ Pomax.It is limited in order to accurately control compressor
Raising frequency or limit frequency reducing need to further determine that position of the pressure coordinates point in second function region, namely described in determination
Pressure coordinates point is the first area being located in second function region or second area.
S325：When the pressure coordinates point is located at the first area in second function region, compressor raising frequency is limited, with
By the pressure at expulsion PkWith the pressure of inspiration(Pi) PoIt is limited in corresponding presetting range；
It, can the second letter of following array function expression based on third function area and the 4th function area with further reference to Fig. 4
The first area in number region, i.e.,：f1(Pomin) ＜ y ＜ f1(Pomin+ △ P), f1(x)-△ P ＜ y ＜ f1(x)、x∈(Pomin, f1 -1
(Pkmax)), Pkmax- △ P ＜ y ＜ Pkmax、x∈(f1 -1(Pkmax), f2 -1(Pkmax)), f2(x)-△ P ＜ y ＜ f2(x)、x∈(f2 -1(Pkmax), Pomax)).As the pressure coordinates point (Po, Pk) be located at second function region first area when, limit compressor
Raising frequency, by the pressure at expulsion P of compressorkWith the pressure of inspiration(Pi) PoIt is limited in corresponding presetting range.
S326：When the pressure coordinates point is located at the second area in second function region, compressor frequency reducing is limited, with
By the pressure at expulsion PkWith the pressure of inspiration(Pi) PoIt is limited in corresponding presetting range.
It, can the second letter of following array function expression based on third function area and the 4th function area with further reference to Fig. 4
The first area in number region, i.e.,：f3(x)+△ P ＜ y ＜ f3(x)、x∈(f3 -1(Pkmin), Pomax), Pkmin＜ y ＜ Pkmin+△P、x
∈(Pomin+ △ P, f3 -1(Pkmin)), f2(Pomax) ＜ y ＜ f2(Pomax- △ P), x ∈ (Pomax- △ P, Pomax)).When the pressure
Power coordinate points (Po, Pk) be located at second function region second area when, limit compressor frequency reducing, by the exhaust pressure of compressor
Power PkWith the pressure of inspiration(Pi) PoIt is limited in corresponding presetting range.
Further, with reference to Fig. 9, the control method of the compressor based on above-described embodiment, the first of step S33 implements
Example, including：
S331：As the pressure at expulsion PkWith pressure of inspiration(Pi) PoCorresponding pressure coordinates point is located at except second function region
Third function area when, judge compressor current operation frequency whether be more than preset low-limit frequency；
In the present embodiment, in the present embodiment, with further reference to Fig. 4, as the pressure at expulsion P for monitoring compressorkWith
Pressure of inspiration(Pi) PoCorresponding pressure coordinates point (Po, Pk) when being located at third function area, namely pressure at expulsion P at this timekAnd air-breathing
Pressure PoCorresponding function y=f (x) meets：y≤f1(Pomin), x ∈ (0, Pomin).In order to accurately control compressor into
Row frequency reducing, or make alarm and close compressor obtains compressor to ensure service life and the running stability of compressor
Current operation frequency, and the current operation frequency is compared with preset low-limit frequency, it is pressed with being controlled according to comparison result
The frequency reducing of contracting machine or triggering alarm.
If so, thening follow the steps S332；
S332：Compressor is controlled with the first predetermined amplitude frequency reducing third preset duration at interval of the second preset duration, until
The pressure coordinates point is not belonging to the third function area or the running frequency of the compressor is down to preset low-limit frequency；
As the pressure at expulsion P of compressorkWith pressure of inspiration(Pi) PoCorresponding pressure coordinates point (Po, Pk) it is located at third function region
When domain, it is believed that the pressure of inspiration(Pi) of compressor is too low at this time, needs to carry out frequency reducing to compressor frequency.Therefore, when compressor
When current operation frequency is more than preset low-limit frequency, control compressor carries out frequency reducing with the first predetermined amplitude, and it is default to continue third
Duration, again to the pressure at expulsion P of compressor after the first preset durationkWith pressure of inspiration(Pi) PoWhether corresponding presetting range is in
Judged.If the pressure at expulsion P of compressorkWith pressure of inspiration(Pi) PoCorresponding pressure coordinates point (Po, Pk) it is still located on third letter
Region is counted, then Repetitive controller compressor continues frequency reducing third preset duration with the first predetermined amplitude；If the running frequency of compressor
After being down to preset low-limit frequency, the pressure at expulsion P of compressorkWith pressure of inspiration(Pi) PoCorresponding pressure coordinates point (Po, Pk) still position
In third function area, then the prompt of compressor air suction low pressure alarming, and close compressor are triggered.Second preset duration is 30
Second~90 seconds, preferably 60 seconds；The third preset duration is 2 seconds~7 seconds, preferably 5 seconds；First predetermined amplitude is 1Hz/s
~3Hz/s, preferably 1Hz/s.
If it is not, thening follow the steps S333；
S333：Trigger the prompt of air-breathing low pressure alarming and close compressor；
Wherein, the first preset duration described in the second preset duration ＜ described in the third preset duration ＜.
As the pressure at expulsion P of compressorkWith pressure of inspiration(Pi) PoCorresponding pressure coordinates point (Po, Pk) it is located at third function region
When domain, it is believed that the pressure of inspiration(Pi) of compressor is too low at this time, needs to carry out frequency reducing to compressor frequency.But when compressor
When current operation frequency is preset low-limit frequency, can not frequency reducing be carried out to compressor again, and compressor is in normal fortune at this time
Except row pressure limit, to avoid damage compressor, ensure that service life and the running stability of compressor, triggering compressor air suction are low
Press alarm, and close compressor.
Further, referring to Fig.1 0, the control method of the compressor based on above-described embodiment, the second of step S33 implements
Example, including：
S334：As the pressure at expulsion PkWith pressure of inspiration(Pi) PoCorresponding pressure coordinates point is located at except second function region
Four function areas when, judge compressor current operation frequency whether be more than preset low-limit frequency；
In the present embodiment, in the present embodiment, with further reference to Fig. 4, as the pressure at expulsion P for monitoring compressorkWith
Pressure of inspiration(Pi) PoCorresponding pressure coordinates point (Po, Pk) when being located at four function areas, namely pressure at expulsion P at this timekAnd air-breathing
Pressure PoCorresponding function y=f (x) meets：Y ＞ f1(Pomin), x ∈ (0, Pomin), y ＞ f1(x)、x∈[Pomin, f1 -1
(Pkmax)), y ＞ Pkmax、x∈[f1 -1(Pkmax), f2 -1(Pkmax)), y ＞ f2(x)、x∈[f2 -1(Pkmax), Pomax), y >=f2
(Pomax)、x∈[Pomax, ∞).Frequency reducing is carried out in order to accurately control compressor, or makes alarm and close compressor,
To ensure service life and the running stability of compressor, the current operation frequency of compressor is obtained, and by the current operation frequency
It is compared with preset low-limit frequency, to control compressor frequency reducing or triggering alarm according to comparison result.
If so, thening follow the steps S335；
S335：Compressor is controlled with the 5th preset duration of the second predetermined amplitude frequency reducing at interval of the 4th preset duration, until
The pressure coordinates point is not belonging to the 4th function area or the running frequency of the compressor is down to preset low-limit frequency；
As the pressure at expulsion P of compressorkWith pressure of inspiration(Pi) PoCorresponding pressure coordinates point (Po, Pk) it is located at the 4th function region
When domain, it is believed that the pressure at expulsion of compressor is excessively high at this time, needs to carry out frequency reducing to compressor frequency.Therefore, when compressor
When current operation frequency is more than preset low-limit frequency, control compressor carries out frequency reducing with the second predetermined amplitude, and it is default to continue the 5th
Duration, again to the pressure at expulsion P of compressor after the 4th preset durationkWith pressure of inspiration(Pi) PoWhether corresponding presetting range is in
Judged.If the pressure at expulsion P of compressorkWith pressure of inspiration(Pi) PoCorresponding pressure coordinates point (Po, Pk) it is still located on the 4th letter
Region is counted, then Repetitive controller compressor continues the 5th preset duration of frequency reducing with the second predetermined amplitude；If the running frequency of compressor
After being down to preset low-limit frequency, the pressure at expulsion P of compressorkWith pressure of inspiration(Pi) PoCorresponding pressure coordinates point (Po, Pk) still position
In the 4th function area, then the prompt of compressor air-discharging alarm for high voltage, and close compressor are triggered.4th preset duration is 30
Second~90 seconds, preferably 60 seconds；5th preset duration is 2 seconds~7 seconds, preferably 5 seconds；Second predetermined amplitude is 1Hz/s
~3Hz/s, preferably 1Hz/s.
If it is not, thening follow the steps S336；
S336：Triggering exhaust alarm for high voltage prompt and close compressor；
Wherein, the first preset duration described in the 4th preset duration ＜ described in the 5th preset duration ＜.
As the pressure at expulsion P of compressorkWith pressure of inspiration(Pi) PoCorresponding pressure coordinates point (Po, Pk) it is located at the 4th function region
When domain, it is believed that the pressure at expulsion of compressor is excessively high at this time, needs to carry out frequency reducing to compressor frequency.But when compressor
When current operation frequency is preset low-limit frequency, can not frequency reducing be carried out to compressor again, and compressor is in normal fortune at this time
Except row pressure limit, to avoid damage compressor, ensure that service life and the running stability of compressor, triggering compressor air-discharging are high
Press alarm, and close compressor.
Further, referring to Fig.1 1, the third of the control method of the compressor based on above-described embodiment, step S33 is implemented
Example, including：
S337：As the pressure at expulsion PkWith pressure of inspiration(Pi) PoCorresponding pressure coordinates point is located at except second function region
Five function areas when, judge compressor current operation frequency whether be less than preset highest frequency；
In the present embodiment, in the present embodiment, with further reference to Fig. 4, as the pressure at expulsion P for monitoring compressorkWith
Pressure of inspiration(Pi) PoCorresponding pressure coordinates point (Po, Pk) when being located at five function areas, namely pressure at expulsion P at this timekAnd air-breathing
Pressure PoCorresponding function y=f (x) meets：Y ＜ Pkmin、x∈[Pomin, f3 -1(Pkmin))), y ＜ f3(x)、x∈[f3 -1
(Pkmin), Pomax), y ＜ f2(Pomax)、x∈[Pomax, ∞).Frequency reducing is carried out in order to accurately control compressor, or makes alarm
It prompts and close compressor obtains the current operation frequency of compressor, and will to ensure service life and the running stability of compressor
The current operation frequency is compared with preset highest frequency, to control compressor frequency reducing or triggering alarm according to comparison result
Prompt.
If so, thening follow the steps S338；
S338：Compressor is controlled with the 7th preset duration of third predetermined amplitude raising frequency at interval of the 6th preset duration, until
The pressure coordinates point is not belonging to the 5th function area or the running frequency of the compressor rises to preset highest frequency；
As the pressure at expulsion P of compressorkWith pressure of inspiration(Pi) PoCorresponding pressure coordinates point (Po, Pk) it is located at the 5th function region
When domain, it is believed that the pressure at expulsion of compressor is too low at this time or pressure of inspiration(Pi) is excessively high, needs to carry out raising frequency to compressor frequency.Cause
This, when the current operation frequency of compressor is less than preset highest frequency, control compressor carries out raising frequency with third predetermined amplitude,
Continue the 7th preset duration, again to the pressure at expulsion P of compressor after the 6th preset durationkWith pressure of inspiration(Pi) PoWhether in pair
The presetting range answered is judged.If the pressure at expulsion P of compressorkWith pressure of inspiration(Pi) PoCorresponding pressure coordinates point (Po, Pk) still
So it is located at the 5th function area, then Repetitive controller compressor continues the 7th preset duration of frequency reducing with third predetermined amplitude；If compression
After the running frequency of machine rises to preset highest frequency, the pressure at expulsion P of compressorkWith pressure of inspiration(Pi) PoCorresponding pressure coordinates point
(Po, Pk) be still located on the 5th function area, then further more current pressure of inspiration(Pi) PoWith preset maximum inspiratory pressure Pomax's
Size, to trigger compressor air suction high pressure according to comparison result or be vented the alarm of low pressure, and close compressor.Described
Six preset durations are 30 seconds~90 seconds, preferably 60 seconds；7th preset duration is 2 seconds~7 seconds, preferably 5 seconds；The third is pre-
If amplitude is 1Hz/s~3Hz/s, preferably 1Hz/s.
If it is not, thening follow the steps S339；
S339：In Po＞ PomaxWhen triggering air-breathing alarm for high voltage prompt and close compressor, or in Po≤PomaxWhen triggering row
The prompt of gas low pressure alarming and close compressor；
Wherein, the first preset duration described in the 6th preset duration ＜ described in the 7th preset duration ＜, PomaxIt is preset
Maximum inspiratory pressure.
As the pressure at expulsion P of compressorkWith pressure of inspiration(Pi) PoCorresponding pressure coordinates point (Po, Pk) it is located at the 5th function region
When domain, it is believed that the pressure at expulsion of compressor is too low at this time or pressure of inspiration(Pi) is excessively high, needs to carry out raising frequency to compressor frequency.But
It is that, when the current operation frequency of compressor is preset highest frequency, can not raising frequency be carried out to compressor again, and compress at this time
Machine is in except normal operation pressure limit, to avoid damage compressor, is ensured service life and the running stability of compressor, is needed
Further more current pressure of inspiration(Pi) PoWith preset maximum inspiratory pressure PomaxSize, with according to comparison result trigger compressor
Air-breathing high pressure or the alarm for being vented low pressure, and close compressor.Specially：Work as Po＞ PomaxWhen, trigger air-breathing alarm for high voltage
Prompt simultaneously close compressor；Work as Po≤PomaxWhen, triggering exhaust low pressure alarming prompts and close compressor.
In addition, the embodiment of the present invention also proposes a kind of storage medium, and the storage medium storing control program, the control
The step of control method of compressor as described above is realized when program is executed by processor.
Wherein, control program is performed each reality that realized method can refer to the control method of compressor of the present invention
Example is applied, details are not described herein again.
It should be noted that herein, the terms "include", "comprise" or its any other variant are intended to non-row
His property includes, so that process, method, article or system including a series of elements include not only those elements, and
And further include other elements that are not explicitly listed, or further include for this process, method, article or system institute it is intrinsic
Element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that including this
There is also other identical elements in the process of element, method, article or system.
The embodiments of the present invention are for illustration only, can not represent the quality of embodiment.
Through the above description of the embodiments, those skilled in the art can be understood that above-described embodiment side
Method can add the mode of required general hardware platform to realize by software, naturally it is also possible to by hardware, but in many cases
The former is more preferably embodiment.Based on this understanding, technical scheme of the present invention substantially in other words does the prior art
Going out the part of contribution can be expressed in the form of software products, which is stored in one as described above
In storage medium (such as ROM/RAM, magnetic disc, CD), including some instructions use so that a station terminal equipment (can be mobile phone,
Computer, server, air conditioner or network equipment etc.) execute method described in each embodiment of the present invention.
It these are only the preferred embodiment of the present invention, be not intended to limit the scope of the invention, it is every to utilize this hair
Equivalent structure or equivalent flow shift made by bright specification and accompanying drawing content is applied directly or indirectly in other relevant skills
Art field, is included within the scope of the present invention.
Claims (12)
1. a kind of control method of compressor, which is characterized in that the control method of the compressor includes the following steps：
After the first preset duration of compressor start, the pressure at expulsion P of compressor is monitoredkWith pressure of inspiration(Pi) Po；
Judge the pressure at expulsion PkWith pressure of inspiration(Pi) PoWhether corresponding presetting range is in；
If it is not, the running frequency of compressor is then adjusted, by the pressure at expulsion PkWith the pressure of inspiration(Pi) PoIt is limited in corresponding
Presetting range.
2. control method according to claim 1, which is characterized in that described to judge the pressure at expulsion PkAnd pressure of inspiration(Pi)
PoThe step of whether being in corresponding presetting range, including：
Judge the pressure at expulsion P according to preset compressor operating pressure limit figurekWith pressure of inspiration(Pi) PoWhether in corresponding
Presetting range.
3. control method according to claim 2, which is characterized in that described according to preset compressor operating pressure limit
Figure judges the pressure at expulsion PkWith pressure of inspiration(Pi) PoThe step of whether being in corresponding presetting range, including：
With the pressure of inspiration(Pi) P of compressoroFor x-axis, with the pressure at expulsion P of compressorkPlane coordinate system is built for y-axis；
First function region corresponding with preset compressor operating pressure limit figure is indicated in the plane coordinate system；
The pressure at expulsion P that will be detectedkWith pressure of inspiration(Pi) PoThe pressure coordinates point of the plane coordinate system is converted to, described in judgement
Whether pressure coordinates point falls into the first function region.
4. control method according to claim 3, which is characterized in that it is described if it is not, then adjust the running frequency of compressor,
With by the pressure at expulsion PkWith the pressure of inspiration(Pi) PoThe step of being limited in corresponding presetting range, including：
As the pressure at expulsion PkWith pressure of inspiration(Pi) PoWhen corresponding pressure coordinates point is located at except first function region, institute is judged
State whether pressure coordinates point is located at second function region；
If so, limitation compressor raising frequency or frequency reducing, by the pressure at expulsion PkWith the pressure of inspiration(Pi) PoIt is limited in corresponding
Presetting range；
If it is not, the then current operation frequency control compressor raising frequency based on compressor or frequency reducing, or trigger alarm and close
Compressor.
5. control method according to claim 4, which is characterized in that it is described if so, limitation compressor raising frequency or frequency reducing,
With by the pressure at expulsion PkWith the pressure of inspiration(Pi) PoThe step of being limited in corresponding presetting range, including：
As the pressure at expulsion PkWith pressure of inspiration(Pi) PoWhen corresponding pressure coordinates point is located at second function region, compressor is obtained
Current operation frequency；
When the current operation frequency reaches preset low-limit frequency, compressor frequency reducing is limited, by the pressure at expulsion PkAnd institute
State pressure of inspiration(Pi) PoIt is limited in corresponding presetting range；
When the current operation frequency reaches preset highest frequency, compressor raising frequency is limited, by the pressure at expulsion PkAnd institute
State pressure of inspiration(Pi) PoIt is limited in corresponding presetting range.
6. control method according to claim 4, which is characterized in that it is described if so, limitation compressor raising frequency or frequency reducing,
With by the pressure at expulsion PkWith the pressure of inspiration(Pi) PoThe step of being limited in corresponding presetting range, including：
As the pressure at expulsion PkWith pressure of inspiration(Pi) PoWhen corresponding pressure coordinates point is located at second function region, the pressure is determined
Position of the power coordinate points in second function region；
When the pressure coordinates point is located at the first area in second function region, compressor raising frequency is limited, by the row
Atmospheric pressure PkWith the pressure of inspiration(Pi) PoIt is limited in corresponding presetting range；
When the pressure coordinates point is located at the second area in second function region, compressor frequency reducing is limited, by the row
Atmospheric pressure PkWith the pressure of inspiration(Pi) PoIt is limited in corresponding presetting range.
7. control method according to claim 4, which is characterized in that described if it is not, the then current operation based on compressor
After FREQUENCY CONTROL compressor raising frequency or frequency reducing, or triggering alarm the step of close compressor, including：
As the pressure at expulsion PkWith pressure of inspiration(Pi) PoCorresponding pressure coordinates point is located at the third function except second function region
When region, judge whether the current operation frequency of compressor is more than preset low-limit frequency；
If so, controlling compressor with the first predetermined amplitude frequency reducing third preset duration, until institute at interval of the second preset duration
State that pressure coordinates point is not belonging to the third function area or the running frequency of the compressor is down to preset low-limit frequency；
If it is not, then triggering the prompt of air-breathing low pressure alarming and close compressor；
Wherein, the first preset duration described in the second preset duration ＜ described in the third preset duration ＜.
8. control method according to claim 4, which is characterized in that described if it is not, the then current operation based on compressor
After FREQUENCY CONTROL compressor raising frequency or frequency reducing, or triggering alarm the step of close compressor, including：
As the pressure at expulsion PkWith pressure of inspiration(Pi) PoCorresponding pressure coordinates point is located at the 4th function except second function region
When region, judge whether the current operation frequency of compressor is more than preset low-limit frequency；
If so, controlling compressor with the 5th preset duration of the second predetermined amplitude frequency reducing, until institute at interval of the 4th preset duration
State that pressure coordinates point is not belonging to the 4th function area or the running frequency of the compressor is down to preset low-limit frequency；
If it is not, then triggering the prompt of exhaust alarm for high voltage and close compressor；
Wherein, the first preset duration described in the 4th preset duration ＜ described in the 5th preset duration ＜.
9. control method according to claim 4, which is characterized in that described if it is not, the then current operation based on compressor
After FREQUENCY CONTROL compressor raising frequency or frequency reducing, or triggering alarm the step of close compressor, including：
As the pressure at expulsion PkWith pressure of inspiration(Pi) PoCorresponding pressure coordinates point is located at the 5th function except second function region
When region, judge whether the current operation frequency of compressor is less than preset highest frequency；
If so, controlling compressor with the 7th preset duration of third predetermined amplitude raising frequency, until institute at interval of the 6th preset duration
State that pressure coordinates point is not belonging to the 5th function area or the running frequency of the compressor rises to preset highest frequency；
If it is not, then in Po＞ PomaxWhen triggering air-breathing alarm for high voltage prompt and close compressor, or in Po≤PomaxWhen triggering exhaust
Low pressure alarming prompt and close compressor；
Wherein, the first preset duration described in the 6th preset duration ＜ described in the 7th preset duration ＜, PomaxFor preset maximum suction
Atmospheric pressure.
10. control method according to claim 1, which is characterized in that as the pressure at expulsion P of compressorkWith pressure of inspiration(Pi) Po
When in corresponding presetting range, control compressor continues to run by current control logic.
11. a kind of air conditioner, including compressor, which is characterized in that the air conditioner further includes memory, processor and is stored in institute
The control program stated memory and can run on the processor is realized such as when the control program is executed by the processor
The step of control method of claims 1 to 10 any one of them compressor.
12. a kind of storage medium, which is characterized in that the storage medium storing control program, the control program is by processor
The step of control method of compressor as described in any one of claim 1 to 10 is realized when execution.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810126305.5A CN108397375B (en) | 2018-02-07 | 2018-02-07 | Compressor control method, air conditioner and storage medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810126305.5A CN108397375B (en) | 2018-02-07 | 2018-02-07 | Compressor control method, air conditioner and storage medium |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108397375A true CN108397375A (en) | 2018-08-14 |
| CN108397375B CN108397375B (en) | 2019-12-20 |
Family
ID=63095496
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810126305.5A Active CN108397375B (en) | 2018-02-07 | 2018-02-07 | Compressor control method, air conditioner and storage medium |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108397375B (en) |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109611989A (en) * | 2018-12-12 | 2019-04-12 | 广东智科电子股份有限公司 | A kind of temperature of water chiller/heater and press Frequency Synchronization regulating device and method |
| CN109751708A (en) * | 2018-12-27 | 2019-05-14 | 广东美的暖通设备有限公司 | The control method and storage medium of a kind of air conditioner, air conditioner |
| CN109855337A (en) * | 2019-02-18 | 2019-06-07 | 珠海格力电器股份有限公司 | A kind of Differential pressure control method, device and the equipment of effective protection compressor |
| CN111023430A (en) * | 2019-12-31 | 2020-04-17 | 宁波奥克斯电气股份有限公司 | Compressor starting control method and device and air conditioner |
| CN111023420A (en) * | 2019-12-27 | 2020-04-17 | 宁波奥克斯电气股份有限公司 | Compressor quick start control method and device, air conditioner and storage medium |
| CN111561768A (en) * | 2020-05-06 | 2020-08-21 | 广东美的暖通设备有限公司 | Operation control method of air conditioner, air conditioner and readable storage medium |
| CN112664455A (en) * | 2019-10-15 | 2021-04-16 | 广东芬尼克兹节能设备有限公司 | Lubrication adjusting method and device for compressor, electronic equipment and storage medium |
| CN113007862A (en) * | 2021-04-20 | 2021-06-22 | 宁波奥克斯电气股份有限公司 | Air suction side pressure determining method and module, air conditioner control method and device and multi-split air conditioner |
| CN113432353A (en) * | 2021-06-15 | 2021-09-24 | 广东芬尼克兹节能设备有限公司 | Compression ratio adjusting method, compression ratio adjusting device, compression ratio adjusting equipment and storage medium |
| CN114484759A (en) * | 2022-01-27 | 2022-05-13 | 青岛海尔空调电子有限公司 | Method and device for preventing compressor from desynchronizing and compressor |
| CN115183304A (en) * | 2022-07-14 | 2022-10-14 | 珠海格力电器股份有限公司 | Control method and system for capillary network air-conditioning heating system |
| CN115325630A (en) * | 2022-07-26 | 2022-11-11 | 南京天加环境科技有限公司 | Control method of refrigerating system |
| CN116292238A (en) * | 2023-05-17 | 2023-06-23 | 广东美的暖通设备有限公司 | Control method and device of working frequency, storage medium and electronic equipment |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005061698A (en) * | 2003-08-11 | 2005-03-10 | Mitsubishi Heavy Ind Ltd | Refrigerator, refrigerating unit using this refrigerator and container with refrigerating unit |
| CN1607361A (en) * | 2003-10-16 | 2005-04-20 | Lg电子株式会社 | Method for controlling air conditioner |
| CN106642806A (en) * | 2016-10-31 | 2017-05-10 | 珠海格力电器股份有限公司 | Control method for controlling operation of compressor and heat pump unit |
-
2018
- 2018-02-07 CN CN201810126305.5A patent/CN108397375B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005061698A (en) * | 2003-08-11 | 2005-03-10 | Mitsubishi Heavy Ind Ltd | Refrigerator, refrigerating unit using this refrigerator and container with refrigerating unit |
| CN1607361A (en) * | 2003-10-16 | 2005-04-20 | Lg电子株式会社 | Method for controlling air conditioner |
| CN106642806A (en) * | 2016-10-31 | 2017-05-10 | 珠海格力电器股份有限公司 | Control method for controlling operation of compressor and heat pump unit |
Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109611989A (en) * | 2018-12-12 | 2019-04-12 | 广东智科电子股份有限公司 | A kind of temperature of water chiller/heater and press Frequency Synchronization regulating device and method |
| CN109611989B (en) * | 2018-12-12 | 2021-02-05 | 广东智科电子股份有限公司 | Device and method for synchronously adjusting temperature of cold and hot water machine and frequency of press |
| CN109751708A (en) * | 2018-12-27 | 2019-05-14 | 广东美的暖通设备有限公司 | The control method and storage medium of a kind of air conditioner, air conditioner |
| CN109855337A (en) * | 2019-02-18 | 2019-06-07 | 珠海格力电器股份有限公司 | A kind of Differential pressure control method, device and the equipment of effective protection compressor |
| CN112664455A (en) * | 2019-10-15 | 2021-04-16 | 广东芬尼克兹节能设备有限公司 | Lubrication adjusting method and device for compressor, electronic equipment and storage medium |
| CN112664455B (en) * | 2019-10-15 | 2023-02-21 | 广东芬尼克兹节能设备有限公司 | Lubrication adjusting method and device for compressor, electronic equipment and storage medium |
| WO2021072954A1 (en) * | 2019-10-15 | 2021-04-22 | 广东芬尼克兹节能设备有限公司 | Compressor lubrication adjusting method and device, electronic equipment, and storage medium |
| CN111023420A (en) * | 2019-12-27 | 2020-04-17 | 宁波奥克斯电气股份有限公司 | Compressor quick start control method and device, air conditioner and storage medium |
| CN111023420B (en) * | 2019-12-27 | 2021-08-20 | 宁波奥克斯电气股份有限公司 | Compressor quick start control method and device, air conditioner and storage medium |
| CN111023430A (en) * | 2019-12-31 | 2020-04-17 | 宁波奥克斯电气股份有限公司 | Compressor starting control method and device and air conditioner |
| CN111561768A (en) * | 2020-05-06 | 2020-08-21 | 广东美的暖通设备有限公司 | Operation control method of air conditioner, air conditioner and readable storage medium |
| CN113007862A (en) * | 2021-04-20 | 2021-06-22 | 宁波奥克斯电气股份有限公司 | Air suction side pressure determining method and module, air conditioner control method and device and multi-split air conditioner |
| CN113432353A (en) * | 2021-06-15 | 2021-09-24 | 广东芬尼克兹节能设备有限公司 | Compression ratio adjusting method, compression ratio adjusting device, compression ratio adjusting equipment and storage medium |
| CN114484759A (en) * | 2022-01-27 | 2022-05-13 | 青岛海尔空调电子有限公司 | Method and device for preventing compressor from desynchronizing and compressor |
| CN115183304A (en) * | 2022-07-14 | 2022-10-14 | 珠海格力电器股份有限公司 | Control method and system for capillary network air-conditioning heating system |
| CN115183304B (en) * | 2022-07-14 | 2024-04-02 | 珠海格力电器股份有限公司 | Control method and system for capillary network air conditioner heating system |
| CN115325630A (en) * | 2022-07-26 | 2022-11-11 | 南京天加环境科技有限公司 | Control method of refrigerating system |
| CN116292238A (en) * | 2023-05-17 | 2023-06-23 | 广东美的暖通设备有限公司 | Control method and device of working frequency, storage medium and electronic equipment |
| CN116292238B (en) * | 2023-05-17 | 2023-09-12 | 广东美的暖通设备有限公司 | Control method and device of working frequency, storage medium and electronic equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108397375B (en) | 2019-12-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108397375A (en) | Control method, air conditioner and the storage medium of compressor | |
| CN108344115A (en) | Control method, air-cooled unit and the storage medium of air-cooled unit | |
| CN105091247B (en) | air conditioner dehumidification control method and device | |
| CN111512094B (en) | Relative humidity control system and method | |
| US11226128B2 (en) | Indoor air quality and occupant monitoring systems and methods | |
| US20160282026A1 (en) | Air conditioner amd method of controlling an air conditioner | |
| CN107906698A (en) | Floor air conditioner and control method, device, computer-readable recording medium | |
| CN108896911A (en) | The charging method for detecting abnormality and device of a kind of electronic equipment | |
| CN107255340A (en) | Prevent the control method and control system of the overheat of compressor of transducer air conditioning | |
| CN111197836A (en) | Intelligent detection method for air conditioner sensor falling and air conditioner | |
| CN107062564A (en) | Control method, air conditioner and the storage medium of air conditioner | |
| CN109883003A (en) | Control method, air conditioner and the computer readable storage medium of air conditioner | |
| CN108107780A (en) | Power-off method, device, system and the computer readable storage medium of intelligent appliance | |
| CN108180608A (en) | Air conditioning control method, device and computer readable storage medium | |
| WO2021036403A1 (en) | Fault point detection method and apparatus for air conditioner, and readable storage medium | |
| CN109520082A (en) | Air-conditioner control method, air conditioner and computer readable storage medium | |
| CN106196419A (en) | A kind of air-conditioning state detection method, device and air-conditioning | |
| CN112050970A (en) | Environment monitoring method and device | |
| CN109780689A (en) | Control method, air conditioner and the computer readable storage medium of air conditioner | |
| CN206626744U (en) | Air-conditioner control system and air-conditioning equipment based on mobile device | |
| CN109141355A (en) | Relative altitude measurement method and wearable device based on multisensor | |
| CN117026373B (en) | Abnormal parameter detection method and related equipment in diamond growth process | |
| CN108775682A (en) | Air conditioner and its control method, device and computer readable storage medium | |
| CN108592293A (en) | A kind of air-conditioning failure detector and detection method | |
| CN107906662A (en) | Method for controlling number of revolution, new wind turbine and the computer-readable recording medium of new wind turbine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |