CN106322650A - Air conditioner frequency control method - Google Patents
Air conditioner frequency control method Download PDFInfo
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- CN106322650A CN106322650A CN201610689251.4A CN201610689251A CN106322650A CN 106322650 A CN106322650 A CN 106322650A CN 201610689251 A CN201610689251 A CN 201610689251A CN 106322650 A CN106322650 A CN 106322650A
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Abstract
The invention discloses an air conditioner frequency control method. The air conditioner frequency control method comprises a control process of controlling frequency rise of a compressor after opening of an air conditioner; and the control process of controlling frequency rise of the compressor comprises the following steps: when the frequency of the compressor rises to a set frequency needed to continuously operate, a difference value between a real-time indoor environment temperature and a target set temperature is obtained as a real-time temperature difference; a lasting time corresponding to the real-time temperature difference is determined according to a relation between known lasting time and the temperature difference as a real-time lasting time; the relation is a negative correlation relation; and the compressor is controlled to continuously operate by the real-time lasting time at the set frequency. The method controls the frequency of the compressor, and can improve the operation performance of the air conditioner.
Description
Technical field
The invention belongs to air-conditioning technique field, specifically, relate to the control method of a kind of air-conditioning, more specifically
Say, relate to a kind of air-conditioning control method for frequency.
Background technology
Existing air-conditioning, when just starting shooting, in order to reach fast-refrigerating or the effect heated, the most all can control compressor
Quickly raising frequency runs to higher target frequency.When compressor operating, the coolant in compressor can be discharged the most in a large number,
Pipe-line system circulates.If compressor raising frequency excessive velocities, coolant can be caused not flow back in time in compressor, rise
Less than lubrication and the effect of cooling, the performance of compressor will be brought deleterious effect.
For avoiding the problems referred to above, during major part airconditioning control, compressor after powering is quickly ramped up to the mistake of high frequency
Cheng Zhong, can force compressor in certain or some fixed frequency point continuous service a period of times, in order to enable compressor normal
Oil return.
But, in existing air-conditioning frequency control process, compressor is when the continuous service of certain or some fixed frequency points
Between immobilize, it is impossible to be changed according to different operating modes.More managing owing to the changeless continuous working period is usually
Value determined by under operating condition of test that think, specific, during air-conditioning is actually used, easily occurs when actual condition changes
Problem, such as causes oil return insufficient because the continuous working period is too short and fluctuations in indoor temperature is big, or during because of continuous service
Between long and affect fast regulating temperature effect, have impact on heat pump performance.
Summary of the invention
It is an object of the invention 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 uses following technical proposals to be achieved:
A kind of air-conditioning control method for frequency, controls the control process of compressor raising frequency, described control pressure after being included in air-conditioning start
The control process of contracting machine raising frequency, including:
When compressor frequency rises to the setpoint frequency needing continuous service, obtain real-time indoor environment temperature and target set temperature
Difference, as the real-time temperature difference；
The persistent period corresponding with the described real-time temperature difference is determined with the corresponding relation of the temperature difference according to the known persistent period, as
Real time duration；Described corresponding relation is negative correlativing relation；
Control compressor at real time duration described in described setpoint frequency continuous service.
Method as above, the persistent period known to described basis determines and described real-time temperature with the corresponding relation of the temperature difference
The persistent period that difference is corresponding, as real time duration, specifically include:
The described persistent period, the described temperature difference was temperature range with the corresponding relation of the temperature difference；Judge belonging to the described real-time temperature difference
Temperature range, then determines, according to described corresponding relation, the persistent period that the temperature range belonging to the described real-time temperature difference is corresponding,
As the real time duration corresponding with the described real-time temperature difference.
Preferably, described temperature range includes three: less than the first temperature threshold；Not less than described first temperature threshold
Value and the no more than second temperature threshold；More than described second temperature threshold；Described second temperature threshold is more than described first temperature
Threshold value.
It is furthermore preferred that described first temperature threshold is 3 DEG C, described second temperature threshold is 9 DEG C.
Method as above, described setpoint frequency is multiple, the corresponding relation of described persistent period and the temperature difference for and institute
The quantity stating setpoint frequency is the most multiple；
Described when compressor frequency rises to the setpoint frequency needing continuous service, obtain real-time indoor environment temperature and goal setting
The difference of temperature, as the real-time temperature difference；
The persistent period corresponding with the described real-time temperature difference is determined with the corresponding relation of the temperature difference according to the known persistent period, as
Real time duration；Specifically include:
When compressor frequency rises to certain setpoint frequency needing continuous service, obtain real-time indoor environment temperature and goal setting
The difference of temperature, as the real-time temperature difference；
Obtain and described corresponding the continuing of certain setpoint frequency with the corresponding relation of the temperature difference from known multiple persistent period
Time and the corresponding relation of the temperature difference, the persistent period corresponding from certain setpoint frequency described and described and the corresponding relation of the temperature difference
Middle determine the persistent period corresponding with the described real-time temperature difference, as real time duration.
Method, and quantity the most multiple described persistent period of described setpoint frequency as above and the temperature difference
In corresponding relation, the different described setpoint frequencies described persistent period corresponding under the identical described temperature difference meets: described
Setpoint frequency and described persistent period correlation.
Preferably, the temperature difference is the most identical with the corresponding relation of the temperature difference persistent period corresponding to all described setpoint frequencies.
Compared with prior art, advantages of the present invention and good effect are: in the control method for frequency that the present invention provides, press
During contracting machine raising frequency, the continuous working period at setpoint frequency point no longer immobilizes, but according to real-time indoor environment
The difference of temperature and target set temperature be at a temperature of the relation of negative correlation determines different indoor environment compressor at setpoint frequency
In the continuous working period of point, when the temperature difference is bigger, the continuous working period is shorter so that compressor frequency can rise to as soon as possible
High frequency, when the temperature difference is less, the continuous working period is longer, on the basis of ensureing the abundant oil return of coolant so that indoor temperature is put down
Steady decline, it is to avoid cause indoor environment temperature uncomfortable because of shutdown.
After reading in conjunction with the accompanying the detailed description of the invention of the present invention, the other features and advantages of the invention will become more clear
Chu.
Accompanying drawing explanation
Fig. 1 is the flow chart of one embodiment of air-conditioning control method for frequency of the present invention.
Detailed description of the invention
With detailed description of the invention, technical scheme is described in further detail below in conjunction with the accompanying drawings.
Referring to Fig. 1, this figure show the flow chart of one embodiment of air-conditioning control method for frequency of the present invention, specifically comes
Say, be the flow chart of an embodiment of the control process controlling compressor raising frequency after air-conditioning is started shooting.
As it is shown in figure 1, the control process that this embodiment controls compressor raising frequency after air-conditioning is started shooting includes following step
Processing procedure:
Step 11: when compressor frequency rises to the setpoint frequency needing continuous service, obtains real-time indoor environment temperature and target
The difference of design temperature, as the real-time temperature difference.
Wherein, setpoint frequency is fixed frequency known, that pre-set, can be read easily by airconditioning control module
Arrive.During controlling the quick raising frequency of compressor after air-conditioning is started shooting, it is desirable to hold when compressor frequency rises to this setpoint frequency
Reforwarding row a period of time.Indoor environment temperature refers to the current indoor ambient temperature collected according to sample frequency, example in real time
As, refer to the temperature value utilizing the temperature sensor being arranged on indoor apparatus of air conditioner air inlet to be collected.Target set temperature
Referring to the design temperature in air-conditioning start running, usually user sets, or uses default setting value.
When air-conditioning start, compressor frequency rise to the setpoint frequency needing continuous service, obtain real-time indoor now
Ambient temperature and the target set temperature of air-conditioning, calculate the difference of real-time indoor environment temperature and target set temperature, as reality
Time the temperature difference.And, the real-time temperature difference is positive number.If operation of air conditioner refrigeration mode, real-time indoor environment temperature can set higher than target
Fixed temperature, the real-time temperature difference is the difference that real-time indoor environment temperature deducts target set temperature；If operation of air conditioner heating mode,
Indoor environment temperature can be less than target set temperature in real time, and the real-time temperature difference is that target set temperature deducts real-time indoor environment temperature
Difference.
Step 12: according to the known persistent period determine with the corresponding relation of the temperature difference with the real-time temperature difference corresponding lasting time
Between, as real time duration.
The corresponding relation of persistent period and the temperature difference be known, prestore, can be read easily by airconditioning control module
Take.And, the persistent period is negative correlativing relation with the corresponding relation of the temperature difference.That is, the temperature difference is the biggest, the persistent period is the least；The temperature difference
The least, the persistent period is the biggest.Persistent period is by substantial amounts of Work condition analogue by air-conditioning research staff with the corresponding relation of the temperature difference
Experiment, combining with theoretical analysis and practical experience are determined, and can be modified by mandate.
After the real-time temperature difference that step 11 gets between real-time indoor environment temperature and target set temperature, when lasting
Between determine and the persistent period corresponding to the real-time temperature difference with the corresponding relation of the temperature difference, as real time duration, namely compression
Machine needs to be actually subjected to the time of continuous service under this setpoint frequency.
Step 13: control compressor at setpoint frequency continuous service real time duration.
If compressor reaches real time duration in the time of setpoint frequency continuous service, then perform follow-up action,
As continued raising frequency, or stop raising frequency.
The method using above-described embodiment, during compressor raising frequency, the continuous working period at setpoint frequency point is no longer
Immobilize, but according to determining different from the relation that the difference of real-time indoor environment temperature and target set temperature is negative correlation
Under indoor environment temperature, compressor is in the continuous working period of setpoint frequency point.When the temperature difference is bigger, continue under setpoint frequency
The operation time is shorter so that compressor frequency can rise tremendously high frequency as soon as possible, it is achieved the quick regulation to indoor temperature；In temperature
When difference is less, under setpoint frequency, the continuous working period is longer, on the basis of ensureing the abundant oil return of coolant so that indoor temperature
Steadily decline, it is to avoid cause the uncomfortable of indoor environment temperature because the temperature difference is rapidly achieved halt condition shutdown.Thus, improve
The runnability of air-conditioning.
For in the persistent period corresponding relation with the temperature difference, the temperature difference can be multiple concrete temperature values.In view of air-conditioning
Actual operating state and the simplification of process, as preferred embodiment, the persistent period, the temperature difference was with the corresponding relation of the temperature difference
Temperature range.So, after getting the real-time temperature difference between real-time indoor environment temperature and target set temperature, first according to right
Should be related to that middle had temperature range determines which temperature range is the real-time temperature difference belong to；Then, determine according to corresponding relation
Go out the persistent period that the temperature range belonging to the real-time temperature difference is corresponding, using this persistent period as corresponding real-time of the real-time temperature difference
Persistent period.
As preferred embodiment, temperature range includes three: less than the first temperature threshold；Not less than the first temperature
Degree threshold value and the no more than second temperature threshold；More than the second temperature threshold；Second temperature threshold is more than described first temperature threshold
Value.Preferably, the first temperature threshold is 3 DEG C, and the second temperature threshold is 9 DEG C, thus defines following three temperature range: little
In 3 DEG C；More than or equal to 3 DEG C and less than or equal to 9 DEG C；More than 9 DEG C.For example, if the temperature difference is 5 DEG C in real time, belongs to and be more than
In 3 DEG C and less than or equal to the temperature range of 9 DEG C；So, it is more than or equal to obtaining from persistent period with the corresponding relation of the temperature difference
3 DEG C and less than or equal to persistent period corresponding to temperature range of 9 DEG C, this persistent period is corresponding to the real-time temperature difference of 5 DEG C
Real time duration.
As above-described embodiment further embodiment, the setpoint frequency needing continuous service is multiple, and when continuing
Between with the corresponding relation of the temperature difference be and the quantity of setpoint frequency is the most multiple.In this case, at compressor frequency liter
To when needing the setpoint frequency of continuous service, obtain the difference of real-time indoor environment temperature and target set temperature, as temperature in real time
Difference；The persistent period corresponding with the real-time temperature difference is determined with the corresponding relation of the temperature difference, as in real time according to the known persistent period
Persistent period；Specifically will include:
When compressor frequency rises to certain setpoint frequency needing continuous service, obtain real-time indoor environment temperature and goal setting
The difference of temperature, as the real-time temperature difference；
From known multiple persistent period with the corresponding relation of the temperature difference obtains with this certain setpoint frequency corresponding lasting time
Between with the corresponding relation of the temperature difference, determine from the persistent period corresponding with this certain setpoint frequency corresponding relation with the temperature difference with
The persistent period that the temperature difference is corresponding in real time, as real time duration.
That is, under difference needs the setpoint frequency of continuous service, corresponding real time duration is the most identical.More preferably
, and quantity the most multiple persistent period of setpoint frequency is with the corresponding relation of the temperature difference, different setpoint frequencies exists
Persistent period corresponding under the identical temperature difference meets: setpoint frequency and persistent period correlation.It is to say, in phase
With under the temperature difference, setpoint frequency is the highest, and the persistent period is the longest；Setpoint frequency is the lowest, and the persistent period is the shortest.The technology effect being so designed that
Fruit is: under the identical temperature difference, controls compressor and continues relatively short period of time at low frequency, in order to rises tremendously high frequency as early as possible, it is achieved to indoor
The quick regulation of temperature；Control compressor and continue the longer time in high frequency, it is to avoid stop because the temperature difference is rapidly achieved halt condition
Machine and cause the uncomfortable of indoor environment temperature.
Above example is only in order to illustrate technical scheme, rather than is limited；Although with reference to aforementioned reality
Execute example the present invention has been described in detail, for the person of ordinary skill of the art, still can be to aforementioned enforcement
Technical scheme described in example is modified, or wherein portion of techniques feature is carried out equivalent；And these are revised or replace
Change, do not make the essence of appropriate technical solution depart from the spirit and scope of claimed technical solution of the invention.
Claims (7)
1. an air-conditioning control method for frequency, controls the control process of compressor raising frequency after being included in air-conditioning start, its feature exists
In, the control process of described control compressor raising frequency, including:
When compressor frequency rises to the setpoint frequency needing continuous service, obtain real-time indoor environment temperature and target set temperature
Difference, as the real-time temperature difference；
The persistent period corresponding with the described real-time temperature difference is determined with the corresponding relation of the temperature difference according to the known persistent period, as
Real time duration；Described corresponding relation is negative correlativing relation；
Control compressor at real time duration described in described setpoint frequency continuous service.
Method the most according to claim 1, it is characterised in that the pass corresponding with the temperature difference of persistent period known to described basis
System determines the persistent period corresponding with the described real-time temperature difference, as real time duration, specifically includes:
The described persistent period, the described temperature difference was temperature range with the corresponding relation of the temperature difference；Judge belonging to the described real-time temperature difference
Temperature range, then determines, according to described corresponding relation, the persistent period that the temperature range belonging to the described real-time temperature difference is corresponding,
As the real time duration corresponding with the described real-time temperature difference.
Method the most according to claim 2, it is characterised in that described temperature range includes three: less than the first temperature
Threshold value；Not less than described first temperature threshold and the no more than second temperature threshold；More than described second temperature threshold；Described
Two temperature thresholds are more than described first temperature threshold.
Method the most according to claim 3, it is characterised in that described first temperature threshold is 3 DEG C, described second temperature threshold
Value is 9 DEG C.
Method the most according to any one of claim 1 to 4, it is characterised in that described setpoint frequency is multiple, described in hold
The continuous time with the corresponding relation of the temperature difference is and the quantity of described setpoint frequency is the most multiple；
Described when compressor frequency rises to the setpoint frequency needing continuous service, obtain real-time indoor environment temperature and goal setting
The difference of temperature, as the real-time temperature difference；
The persistent period corresponding with the described real-time temperature difference is determined with the corresponding relation of the temperature difference according to the known persistent period, as
Real time duration；Specifically include:
When compressor frequency rises to certain setpoint frequency needing continuous service, obtain real-time indoor environment temperature and goal setting
The difference of temperature, as the real-time temperature difference；
Obtain and described corresponding the continuing of certain setpoint frequency with the corresponding relation of the temperature difference from known multiple persistent period
Time and the corresponding relation of the temperature difference, the persistent period corresponding from certain setpoint frequency described and described and the corresponding relation of the temperature difference
Middle determine the persistent period corresponding with the described real-time temperature difference, as real time duration.
Method the most according to claim 5, it is characterised in that and the most multiple institute of quantity of described setpoint frequency
Stating in the corresponding relation of persistent period and the temperature difference, different described setpoint frequencies is described in corresponding under the identical described temperature difference
Persistent period meets: described setpoint frequency and described persistent period correlation.
Method the most according to claim 5, it is characterised in that persistent period that all described setpoint frequencies are corresponding and the temperature difference
Corresponding relation in, the temperature difference is the most identical.
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| CN201610689251.4A CN106322650B (en) | 2016-08-19 | 2016-08-19 | Air-conditioning control method for frequency |
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| CN201610689251.4A CN106322650B (en) | 2016-08-19 | 2016-08-19 | Air-conditioning control method for frequency |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107448376A (en) * | 2017-07-31 | 2017-12-08 | 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 |
| CN110375411A (en) * | 2019-07-17 | 2019-10-25 | 广东Tcl智能暖通设备有限公司 | Starting of air conditioner control method, air-conditioning and storage medium |
| CN112984867A (en) * | 2021-03-30 | 2021-06-18 | 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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| CN112984867A (en) * | 2021-03-30 | 2021-06-18 | 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 |
| 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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