CN106322650B - Air-conditioning control method for frequency - Google Patents
Air-conditioning control method for frequency Download PDFInfo
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- CN106322650B CN106322650B CN201610689251.4A CN201610689251A CN106322650B CN 106322650 B CN106322650 B CN 106322650B CN 201610689251 A CN201610689251 A CN 201610689251A CN 106322650 B CN106322650 B CN 106322650B
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Abstract
The invention discloses a kind of air-conditioning control method for frequency, control process including controlling compressor raising frequency after air-conditioning is switched on, the control process of the control compressor raising frequency, it include: when compressor frequency rises to the setpoint frequency for needing continuous service, the difference for obtaining real-time indoor environment temperature and target set temperature, as the real-time temperature difference；According to the corresponding relationship of the known duration and the temperature difference determining duration corresponding with the real-time temperature difference, as real time duration；The corresponding relationship is negative correlativing relation；Control compressor real time duration described in the setpoint frequency continuous service.Compressor frequency is controlled using method of the invention, operation of air conditioner performance can be improved.
Description
Technical field
The invention belongs to air-conditioning technique fields, specifically, being to be related to a kind of control method of air-conditioning, more specifically
It says, is to be related to a kind of air-conditioning control method for frequency.
Background technique
Existing air-conditioning, in order to achieve the effect that fast-refrigerating or heating, generally can all control compressor in rigid booting
Quick raising frequency to higher target frequency is run.In compressor operation, the refrigerant in compressor promptly can be largely discharged,
It is recycled in pipe-line system.If compressor raising frequency excessive velocities, will lead to refrigerant cannot flow back into compressor in time, rise
Less than the effect of lubrication and cooling, deleterious effect will be brought to the performance of compressor.
To avoid the above problem, during most of airconditioning control, compressor after powering is quickly ramped up to the mistake of high frequency
Cheng Zhong, can force compressor some or certain fixed frequencies point continuous service for a period of time, to keep compressor normal
Oil return.
But in existing air-conditioning frequency control process, compressor is in the continuous service of some or certain fixed frequencies point
Between immobilize, cannot be changed according to different operating conditions.Since the changeless continuous working period is usually more to manage
Identified value under operating condition of test think, specific, air-conditioning in actual use, be easy actual condition change when appearance
Problem such as leads to that oil return is insufficient and fluctuations in indoor temperature is big because the continuous working period is too short, or when because of continuous service
Between it is too long and influence fast regulating temperature effect, affect air conditioning performance.
Summary of the invention
The object of the present invention is to provide a kind of air-conditioning control method for frequency, to improve operation of air conditioner performance.
For achieving the above object, the present invention, which adopts the following technical solutions, is achieved:
A kind of air-conditioning control method for frequency, the control process including controlling compressor raising frequency after air-conditioning is switched on, the control
The control process of compressor raising frequency processed, comprising:
When compressor frequency rises to the setpoint frequency for needing continuous service, real-time indoor environment temperature and goal-setting are obtained
The difference of temperature, as the real-time temperature difference；
According to the corresponding relationship of the known duration and the temperature difference determining duration corresponding with the real-time temperature difference,
As real time duration；The corresponding relationship is negative correlativing relation；
Control compressor real time duration described in the setpoint frequency continuous service.
Corresponding relationship determination and the real-time temperature of method as described above, the duration according to known to and the temperature difference
The difference corresponding duration specifically includes as real time duration:
In the corresponding relationship of the duration and the temperature difference, the temperature difference is the temperature difference range；Judge the real-time temperature difference institute
The temperature difference range of category, then according to the corresponding relationship determine the real-time temperature difference belonging to the temperature difference range it is corresponding continue when
Between, as real time duration corresponding with the real-time temperature difference.
Preferably, the temperature difference range include there are three: less than the first temperature threshold；Not less than first temperature threshold
It is worth and is not more than second temperature threshold value；Greater than the second temperature threshold value；The second temperature threshold value is greater than first temperature
Threshold value.
It is furthermore preferred that first temperature threshold is 3 DEG C, the second temperature threshold value is 9 DEG C.
Method as described above, the setpoint frequency be it is multiple, the corresponding relationship of the duration and the temperature difference is and institute
The quantity for stating setpoint frequency is multiple correspondingly；
It is described when compressor frequency rises to the setpoint frequency for needing continuous service, obtain real-time indoor environment temperature and target
The difference of set temperature, as the real-time temperature difference；
According to the corresponding relationship of the known duration and the temperature difference determining duration corresponding with the real-time temperature difference,
As real time duration；It specifically includes:
When compressor frequency rises to some setpoint frequency for needing continuous service, real-time indoor environment temperature and target are obtained
The difference of set temperature, as the real-time temperature difference；
It is corresponding with some described setpoint frequency from being obtained in the corresponding relationship of known multiple duration and the temperature difference
The corresponding relationship of duration and the temperature difference, from the corresponding of the duration corresponding with some described setpoint frequency and the temperature difference
The duration corresponding with the real-time temperature difference is determined in relationship, as real time duration.
Method as described above and the quantity of the setpoint frequency one-to-one multiple duration and the temperature difference
In corresponding relationship, the different setpoint frequencies duration corresponding under the identical temperature difference meets: described
Setpoint frequency and the duration correlation.
Preferably, in the corresponding relationship of all setpoint frequencies corresponding duration and the temperature difference, the temperature difference is all the same.
Compared with prior art, the advantages and positive effects of the present invention are: in control method for frequency provided by the invention, pressure
No longer immobilized during contracting machine raising frequency in the continuous working period of setpoint frequency point, but according to real-time indoor environment
Compressor is in setpoint frequency at a temperature of temperature and the negatively correlated relationship of the difference of target set temperature determine different indoor environments
In the continuous working period of point, when the temperature difference is larger, the continuous working period is shorter, and compressor frequency is risen to as soon as possible
High frequency, when the temperature difference is smaller, the continuous working period is longer, on the basis of the abundant oil return of guarantee refrigerant, so that room temperature is flat
Steady decline, avoids causing indoor environment temperature uncomfortable because of shutdown.
After a specific embodiment of the invention is read in conjunction with the figure, the other features and advantages of the invention will become more clear
Chu.
Detailed description of the invention
Fig. 1 is the flow chart of air-conditioning control method for frequency one embodiment of the present invention.
Specific embodiment
The technical scheme of the present invention will be explained in further detail with reference to the accompanying drawings and detailed description.
Referring to Figure 1, which show the flow chart of air-conditioning control method for frequency one embodiment of the present invention, specific next
It says, is the flow chart for controlling one embodiment of control process of compressor raising frequency after air-conditioning booting.
As shown in Figure 1, it includes following step that the embodiment, which controls the control process of compressor raising frequency after air-conditioning booting,
Treatment process:
Step 11: when compressor frequency rises to the setpoint frequency for needing continuous service, obtain real-time indoor environment temperature with
The difference of target set temperature, as the real-time temperature difference.
Wherein, setpoint frequency is known, pre-set fixed frequency, can easily be read by airconditioning control module
It arrives.During the quick raising frequency of control compressor after air-conditioning is switched on, it is desirable that be held when compressor frequency rises to the setpoint frequency
Reforwarding row is for a period of time.Real-time indoor environment temperature refers to according to the collected current indoor environment temperature of sample frequency institute, example
Such as, refer to and utilize the collected temperature value of temperature sensor that air conditioner indoor unit air inlet is set.Target set temperature
Refer to the set temperature in air-conditioning booting operational process, usually user sets, or uses default setting value.
When air-conditioning booting, compressor frequency rise to the setpoint frequency for needing continuous service, real-time interior at this time is obtained
The target set temperature of environment temperature and air-conditioning calculates the difference of real-time indoor environment temperature and target set temperature, as reality
When the temperature difference.Moreover, the temperature difference is positive number in real time.If operation of air conditioner refrigeration mode, real-time indoor environment temperature can be set higher than target
Determine temperature, the real-time temperature difference is the difference that real-time indoor environment temperature subtracts target set temperature；If operation of air conditioner heating mode,
Real-time indoor environment temperature can be lower than target set temperature, and the real-time temperature difference is that target set temperature subtracts real-time indoor environment temperature
Difference.
Step 12: when determining continue corresponding with the real-time temperature difference with the corresponding relationship of the temperature difference according to the known duration
Between, as real time duration.
The corresponding relationship of duration and the temperature difference be it is known, pre-stored, can easily be read by airconditioning control module
It takes.Moreover, the corresponding relationship of duration and the temperature difference is negative correlativing relation.That is, the temperature difference is bigger, the duration is smaller；The temperature difference
Smaller, the duration is bigger.The corresponding relationship of duration and the temperature difference is to pass through a large amount of Work condition analogue by air-conditioning research staff
It tests, be combined with the theoretical analysis of and determined with practical experience, and can be modified by authorization.
After step 11 gets the real-time temperature difference between real-time indoor environment temperature and target set temperature, from it is lasting when
Between with the corresponding relationship of the temperature difference determine with the duration corresponding to the real-time temperature difference, as real time duration, namely compression
Machine needs to be actually subjected to the time of continuous service under the setpoint frequency.
Step 13: control compressor is in setpoint frequency continuous service real time duration.
If compressor reaches real time duration in the time of setpoint frequency continuous service, subsequent movement is executed,
Such as continue raising frequency, or stops raising frequency.
Using the method for above-described embodiment, no longer it is in the continuous working period of setpoint frequency point during compressor raising frequency
It immobilizes, but according to different from the determination of the difference of real-time indoor environment temperature and target set temperature negatively correlated relationship
Continuous working period of the compressor in setpoint frequency point under indoor environment temperature.When the temperature difference is larger, continue under setpoint frequency
Runing time is shorter, and compressor frequency is enabled to rise to high frequency as soon as possible, realizes the quick adjusting to room temperature；In temperature
When difference is smaller, the continuous working period is longer under setpoint frequency, on the basis of the abundant oil return of guarantee refrigerant, so that room temperature
Steady decline avoids causing the uncomfortable of indoor environment temperature because the temperature difference is rapidly achieved due to halt condition is shut down.To improve
The runnability of air-conditioning.
For in the corresponding relationship of duration and the temperature difference, the temperature difference can be multiple specific temperature values.In view of air-conditioning
The simplification of actual operating state and processing, as preferred embodiment, in the corresponding relationship of duration and the temperature difference, the temperature difference is
The temperature difference range.So, after getting the real-time temperature difference between real-time indoor environment temperature and target set temperature, first according to right
Possessed the temperature difference range determines which the temperature difference range is the real-time temperature difference belong in should being related to；Then, it is determined according to corresponding relationship
It is the temperature difference range corresponding duration belonging to the real-time temperature difference out, corresponding in real time using the duration as the real-time temperature difference
Duration.
Embodiment more preferably, the temperature difference range include there are three: less than the first temperature threshold；Not less than the first temperature
It spends threshold value and is not more than second temperature threshold value；Greater than second temperature threshold value；Second temperature threshold value is greater than first temperature threshold
Value.Preferably, the first temperature threshold is 3 DEG C, and second temperature threshold value is 9 DEG C, so as to form three following the temperature difference ranges: small
In 3 DEG C；More than or equal to 3 DEG C and it is less than or equal to 9 DEG C；Greater than 9 DEG C.For example, if in real time the temperature difference be 5 DEG C, belong to greater than etc.
The temperature difference range in 3 DEG C and less than or equal to 9 DEG C；So, it will obtain and be more than or equal to from the corresponding relationship of duration and the temperature difference
3 DEG C and less than or equal to the duration corresponding to 9 DEG C of the temperature difference range, which is corresponding to 5 DEG C of the real-time temperature difference
Real time duration.
As above-described embodiment further embodiment, it is multiple for needing the setpoint frequency of continuous service, and when continuing
Between with the corresponding relationship of the temperature difference be and the quantity of setpoint frequency is multiple correspondingly.In this case, in compressor frequency liter
When to the setpoint frequency for needing continuous service, the difference of real-time indoor environment temperature and target set temperature is obtained, as real-time temperature
Difference；The duration corresponding with the real-time temperature difference is determined with the corresponding relationship of the temperature difference according to the known duration, as real-time
Duration；Specifically will include:
When compressor frequency rises to some setpoint frequency for needing continuous service, real-time indoor environment temperature and target are obtained
The difference of set temperature, as the real-time temperature difference；
From obtaining in the corresponding relationship of known multiple duration and the temperature difference, some setpoint frequency is corresponding holds with this
The corresponding relationship of continuous time and the temperature difference, from the corresponding relationship of duration corresponding with some setpoint frequency and the temperature difference really
The fixed duration corresponding with the real-time temperature difference, as real time duration.
That is, corresponding real time duration is not necessarily identical under the different setpoint frequencies for needing continuous service.More preferably
And setpoint frequency quantity correspondingly in the corresponding relationship of multiple duration and the temperature difference, different setpoint frequencies exists
The corresponding duration meets under the identical temperature difference: setpoint frequency and duration correlation.That is, in phase
With under the temperature difference, setpoint frequency is higher, and the duration is longer；Setpoint frequency is lower, and the duration is shorter.The technology effect being designed in this way
Fruit is: under the identical temperature difference, control compressor continues the shorter time at low frequency, to rise to high frequency as early as possible, realizes to interior
The quick adjusting of temperature；It controls compressor and continues longer time in high frequency, avoid stopping because the temperature difference is rapidly achieved halt condition
Machine and cause the uncomfortable of indoor environment temperature.
The above embodiments are merely illustrative of the technical solutions of the present invention, rather than is limited；Although referring to aforementioned reality
Applying example, invention is explained in detail, for those of ordinary skill in the art, still can be to aforementioned implementation
Technical solution documented by example is modified or equivalent replacement of some of the technical features；And these are modified or replace
It changes, the spirit and scope for claimed technical solution of the invention that it does not separate the essence of the corresponding technical solution.
Claims (7)
1. a kind of air-conditioning control method for frequency, the control process including controlling compressor raising frequency after air-conditioning is switched on, feature exist
In the control process of the control compressor raising frequency, comprising:
When compressor frequency rises to the setpoint frequency for needing continuous service, real-time indoor environment temperature and target set temperature are obtained
Difference, as the real-time temperature difference；
According to the corresponding relationship of the known duration and the temperature difference determining duration corresponding with the real-time temperature difference, as
Real time duration；The corresponding relationship is negative correlativing relation；
Control compressor real time duration described in the setpoint frequency continuous service.
2. the method according to claim 1, wherein the duration according to known to pass corresponding with the temperature difference
System specifically includes the determining duration corresponding with the real-time temperature difference as real time duration:
In the corresponding relationship of the duration and the temperature difference, the temperature difference is the temperature difference range；Judge belonging to the real-time temperature difference
The temperature difference range, then according to the corresponding relationship determine the real-time temperature difference belonging to the temperature difference range corresponding duration,
As real time duration corresponding with the real-time temperature difference.
3. according to the method described in claim 2, it is characterized in that, the temperature difference range include there are three: less than the first temperature
Threshold value；Not less than first temperature threshold and it is not more than second temperature threshold value；Greater than the second temperature threshold value；Described
Two temperature thresholds are greater than first temperature threshold.
4. according to the method described in claim 3, it is characterized in that, first temperature threshold be 3 DEG C, the second temperature threshold
Value is 9 DEG C.
5. method according to claim 1 to 4, which is characterized in that the setpoint frequency be it is multiple, it is described to hold
The corresponding relationship of continuous time and the temperature difference is and the quantity of the setpoint frequency is multiple correspondingly；
It is described when compressor frequency rises to the setpoint frequency for needing continuous service, obtain real-time indoor environment temperature and goal-setting
The difference of temperature, as the real-time temperature difference；
According to the corresponding relationship of the known duration and the temperature difference determining duration corresponding with the real-time temperature difference, as
Real time duration；It specifically includes:
When compressor frequency rises to some setpoint frequency for needing continuous service, real-time indoor environment temperature and goal-setting are obtained
The difference of temperature, as the real-time temperature difference；
It is corresponding lasting with some described setpoint frequency from being obtained in the corresponding relationship of known multiple duration and the temperature difference
The corresponding relationship of time and the temperature difference, from the corresponding relationship of corresponding with some described setpoint frequency duration and the temperature difference
The middle determination duration corresponding with the real-time temperature difference, as real time duration.
6. according to the method described in claim 5, it is characterized in that, with the quantity of the setpoint frequency multiple institutes correspondingly
In the corresponding relationship for stating duration and the temperature difference, described in the different setpoint frequencies is corresponding under the identical temperature difference
Duration meets: the setpoint frequency and the duration correlation.
7. according to the method described in claim 5, it is characterized in that, all setpoint frequencies corresponding duration and the temperature difference
Corresponding relationship in, the temperature difference is all the same.
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| CN107448376B (en) * | 2017-07-31 | 2019-05-31 | 广东美的暖通设备有限公司 | Frequency-changeable compressor and its raising frequency control method, device and air conditioner |
| CN108534321A (en) * | 2018-03-31 | 2018-09-14 | 青岛海尔空调器有限总公司 | The control method of air-conditioning under refrigeration mode |
| CN110375411B (en) * | 2019-07-17 | 2020-12-29 | 广东Tcl智能暖通设备有限公司 | Air conditioner starting control method, air conditioner and storage medium |
| CN112984867B (en) * | 2021-03-30 | 2022-08-09 | 宁波奥克斯电气股份有限公司 | Air conditioner heating oil return control method and device and air conditioner |
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| JPH05322278A (en) * | 1992-05-21 | 1993-12-07 | Fujitsu General Ltd | Control device for air conditioner |
| CN101495815A (en) * | 2006-08-04 | 2009-07-29 | 株式会社大宇电子 | Method for controlling operating of air conditioner |
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