CN107246392B - A kind of control method reducing compressor preheating noise - Google Patents
A kind of control method reducing compressor preheating noise Download PDFInfo
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- CN107246392B CN107246392B CN201710399863.4A CN201710399863A CN107246392B CN 107246392 B CN107246392 B CN 107246392B CN 201710399863 A CN201710399863 A CN 201710399863A CN 107246392 B CN107246392 B CN 107246392B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C28/00—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
- F04C29/04—Heating; Cooling; Heat insulation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
- F04C29/06—Silencing
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Air Conditioning Control Device (AREA)
- Control Of Positive-Displacement Pumps (AREA)
Abstract
The invention discloses a kind of control methods for reducing compressor preheating noise, in compressor preheating, it is powered to compressor winding U, V, W timesharing, two-phase winding is controlled in each power cycles to be powered simultaneously, electric current when compressor preheating is reduced, so that noise when reducing compressor preheating, avoids influencing user's normal life, it avoids user since noise problem is complained, improves the usage experience of user；It ensure that and effectively preheated to compressor that there is preferable pre-heat effect simultaneously；Moreover, in each power cycles, electrical current is fluctuation, be not it is invariable, not only avoided constant current from continuing excessively high damage compressor, but also avoid constant current is persistently too low from causing pre-heat effect poor；Not only it ensure that preferable pre-heat effect, but also avoided damage compressor.
Description
Technical field
The invention belongs to Compressor Technology fields, specifically, being to be related to a kind of control for reducing compressor preheating noise
Method.
Background technique
Existing compressor preheating control method, at low temperatures preheats compressor winding though being able to satisfy, and protects
Demonstrate,prove the starting that compressor can be stable in time when user uses.But because pre- heat function is used under air-conditioner standby state,
At night under quieter environment, the high-frequency electromagnetic noise that when preheating generates can seriously affect the normal life of user, be easy
Lead to customer complaint.
Summary of the invention
The present invention provides a kind of control methods for reducing compressor preheating noise, reduce noise when preheating.
It is achieved in order to solve the above technical problems, the present invention adopts the following technical solutions:
A kind of control method reducing compressor preheating noise, it is logical to compressor winding U, V, W timesharing when compressor preheating
Electricity, in each power cycles, two phase windings of control are powered, and the electrical current of every phase winding is fluctuating current.
Further, each power cycles are divided into multiple sub-periods, control the electrical current size in same sub-period
Equal, the electrical current for controlling adjacent sub-period differs in size.
Further, each power cycles are divided into six sub-periods, be followed successively by the first sub-period, the second sub-period,
Third sub-period, the 4th sub-period, the 5th sub-period, the 6th sub-period.
Further, electrical current I2 < third in electrical current I1 the second sub-period of < in the first sub-period
The electrical current I4 in the 4th sub-period of electrical current I3 < in period；The 5th son of electrical current I4 > in 4th sub-period
The electrical current I6 in the 6th sub-period of electrical current I5 > in period.
Further, each power cycles are 600 seconds, and each sub-period is 100 seconds；I1 ∈ [1A, 2A), I2 ∈ [2A,
3A), I3 ∈ [3A, 5A), I4 ∈ [5A, 6A), I5=I3, I6=I2.
Preferably, the control method further include:
At the set time point in each sub-period, the rotational angle of compressor drum is obtained；
Judge rotational angle whether within the scope of set angle；
If so, after the sub-period, into next sub-period or next power cycles；
If it is not, then compressor shutdown.
Further, it is described judge rotational angle whether within the scope of set angle before, the method also includes:
According to the induced electromotive force of two phase windings of energization, the rotational angle of compressor drum is calculated separately out；
Whether identical compare the two rotational angles；
If it is not, then controlling compressor shutdown；
If so, judging rotational angle whether within the scope of set angle.
Further, while compressor shutdown, warning note.
Further, before compressor preheating, the control method further include: obtain outdoor environment temperature Ta, root
The preheating time of each preheating cycle is determined according to outdoor environment temperature Ta.
Further, the preheating time determined according to outdoor environment temperature Ta in each preheating cycle, specific to wrap
It includes:
If the first set temperature of Ta >, preheating time 0；
If the second set temperature < set temperature of Ta≤first, preheating time is the 1/3 of entire preheating cycle；
If the third set temperature < set temperature of Ta≤second, preheating time is the 1/2 of entire preheating cycle；
If Ta≤third set temperature, preheating time is entire preheating cycle.
Compared with prior art, the advantages and positive effects of the present invention are: of the invention reduction compressor preheating noise
Control method controls two-phase winding in each power cycles and is powered simultaneously, electric current when compressor preheating reduced, to subtract
Noise when small compressor preheating avoids influencing user's normal life, avoids user since noise problem is complained, improves use
The usage experience at family；It ensure that and effectively preheated to compressor that there is preferable pre-heat effect simultaneously；Moreover, each logical
In the electric period, electrical current be fluctuation, be not it is invariable, both avoided constant current from continuing excessively high damage compressor,
Avoid constant current is persistently too low to cause pre-heat effect poor again；Not only it ensure that preferable pre-heat effect, but also avoided damage compressor.
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 one embodiment of the control method proposed by the present invention for reducing compressor preheating noise；
Fig. 2 each energization week when being the compressor preheating of the control method proposed by the present invention for reducing compressor preheating noise
Current waveform in phase；
Fig. 3 is the flow chart of part steps in Fig. 1.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, below with reference to drawings and examples,
Invention is further described in detail.
The control method of the reduction compressor preheating noise of the present embodiment, includes mainly following the description, referring to described in Fig. 1.
Step S1: outdoor environment temperature Ta is obtained, when determining the preheating of each preheating cycle according to outdoor environment temperature Ta
Between.
Each preheating cycle includes preheating time and non-preheating time.One preheating cycle terminates, and next preheating cycle is opened
Begin, until compressor starts normally start.
Before compressor preheating, need to determine the preheating time of each preheating cycle according to outdoor environment temperature Ta, both
Guarantee enough preheating time, guarantee pre-heat effect, and preheating time is avoided too long to cause energy waste.
Specifically include the following steps:
(1) if the first set temperature of Ta >, illustrates that outdoor environment temperature is higher, compressor is not necessarily to preheating, therefore when preheating
Between be 0.
(2) if the second set temperature < set temperature of Ta≤first, illustrates that outdoor environment temperature is lower, preheating time is whole
The 1/3 of a preheating cycle not only guarantees pre-heat effect, but also avoids energy waste.
(3) if the third set temperature < set temperature of Ta≤second, illustrates that outdoor environment temperature is relatively low, preheating time is
The 1/2 of entire preheating cycle, not only guarantees pre-heat effect, but also avoid energy waste.
(4) it if Ta≤third set temperature, illustrates that outdoor environment temperature is very low, all needs to preheat in entire preheating cycle,
Therefore preheating time is entire preheating cycle, to guarantee pre-heat effect.
In the present embodiment, the first set temperature is 10 DEG C, and the second set temperature is 5 DEG C, and third set temperature is 0 DEG C,
Not only guarantee the pre-heat effect of compressor, but also avoid energy waste.
Assuming that when preheating cycle is 60min,
If 10 DEG C of Ta >, preheating time 0, non-preheating time is 60min；
If 5 DEG C of Ta≤10 DEG C <, preheating time 20min, non-preheating time is 40min；
If 0 DEG C of Ta≤5 DEG C <, preheating time 30min, non-preheating time is 30min；
If Ta≤0 DEG C, preheating time 60min, non-preheating time is 0.
Step S2: within preheating time, compressor is preheated.
It when compressor preheating, is powered when to compressor winding U, V, W three-phase separate, in each power cycles T, controls two-phase
Winding is powered, and the electrical current of each phase winding is fluctuating current；The electrical current of this two phase winding is identical.
In a power cycles, U, V two-phase are powered simultaneously；In next power cycles, U, W two-phase are powered simultaneously；
In next one power cycles, V, W two-phase are powered simultaneously；……；It circuits sequentially, until preheating time terminates；With the prior art
The middle preheating that is powered simultaneously using three-phase is compared, and the control method of the present embodiment controls two-phase winding simultaneously in each power cycles
It is powered, reduces electric current when compressor preheating, since compressor noise height is positively correlated with size of current, when reducing preheating
Electric current avoid influencing user's normal life, avoid user due to noise problem thus noise when reducing compressor preheating
It complains, improves the usage experience of user；It ensure that and effectively preheated to compressor that there is preferable pre-heat effect simultaneously.
Moreover, in each power cycles, electrical current is fluctuation, be not it is invariable, both constant current was avoided to continue
Height damage compressor, and avoid constant current is persistently too low from causing pre-heat effect poor；Therefore, in each power cycles, fluctuation
Electrical current, not only ensure that preferable pre-heat effect, but avoid damage compressor.
For the ease of the fluctuating current in control power cycles, each power cycles T is averagely divided into multiple sub-periods, controls
The electrical current made in same sub-period is equal in magnitude, and the electrical current for controlling adjacent sub-period differs in size；That is, in same son
In period, electrical current is constant, but in entire power cycles, and electrical current is fluctuation.
In the present embodiment, each power cycles T is divided into six sub-periods, is followed successively by the first sub-period t1, the second son
Period t2, third sub-period t3, the 4th sub-period t4, the 5th sub-period t5, the 6th sub-period t6, it is shown in Figure 2.
By the way that each power cycles are divided into six sub-periods, period of the day from 11 p.m. to 1 a.m segment number were both avoided and has divided too many caused electricity
Flow control is excessively complicated, it is excessive in turn avoid each sub-period duration caused by period of the day from 11 p.m. to 1 a.m segment number divides very little, and then avoid
The compressor damage as caused by the constant current of long period or pre-heat effect are poor.Therefore, each power cycles are divided into
Six sub-periods had not only controlled simply, but also have made the duration of each sub-period appropriate, guaranteed there is preferable pre-heat effect, avoided
Compressor damage.
Electrical current I1 the second sub-period of < t2 in the present embodiment, in each power cycles T, in the first sub-period t1
The electrical current I4 in the 4th sub-period t4 of electrical current I3 < in interior electrical current I2 < third sub-period t3；4th son
The electrical current I6 in the 6th sub-period t6 of electrical current I5 > in the 5th sub-period t5 of electrical current I4 > in period t4；
That is, in each power cycles, the waveform of entire electrical current is similar to a half-wave, under electric current first rises to after wave crest again
Drop, convenient for control current waveform.
As a kind of preferred design of the present embodiment, each power cycles T=600s, each sub-period is 100s, I1
∈ [1A, 2A), I2 ∈ [2A, 3A), I3 ∈ [3A, 5A), and I4 ∈ [5A, 6A), I5=I3, I6=I2；Each sub-period duration is proper
When, size of current is reasonable, and compressor damage caused by avoiding electric current excessive, pre-heat effect caused by also avoiding electric current too small is poor,
And control is simple, is easy to implement.
In order to improve the energization accuracy of each phase of compressor, the control method further includes following step, referring to Fig. 3 institute
Show:
Step S21: at the set time point in each sub-period, the rotational angle of compressor drum is obtained.
The set time point can be the ending of each sub-period, that is, at the end of each sub-period, obtain turning for rotor
Dynamic angle, i.e., obtain the rotational angle of rotor every 100s.
In order to further increase acquisition rotor rotational angle accuracy, according to the induction electric of two phase windings of energization
Gesture calculates separately out the rotational angle of compressor drum；Then whether identical compare the two rotational angles；If it is different, explanation
There are failures, directly execution step S24；If they are the same, S22 is thened follow the steps.
The rotational angle of compressor drum is calculated according to the induced electromotive force of every phase winding, is the prior art, herein no longer
It repeats.
Step S22: judge rotational angle whether within the scope of set angle.
If so, illustrating that the rotational angle of rotor is correct, rotor-position is correct, executes step S23；
If it is not, then illustrating the rotational angle mistake of rotor, rotor-position mistake executes step S24.
For example, set angle range is 0~90 °, when rotational angle ∈ (0,90 °), illustrate that rotational angle is correct, it is no
Then, illustrate rotational angle mistake.
Step S23: after the sub-period, into next sub-period or next power cycles, (sub-period is this
When the last one sub-period of power cycles), control electrical current variation.
Step S24: control compressor shutdown.
When the rotational angle of rotor is within the scope of set angle, just enter next sub-period or next energization week
Phase, to guarantee the accuracy being powered；Otherwise, compressor shutdown is controlled, compressor damage is avoided.
While compressor shutdown, warning note is convenient for on-call maintenance.
It is assumed that each power cycles T=600s, each sub-period is 100s, I1=1.5A, I2=2.5A, I3=5A, I4=
5.8A, I5=5A, I6=2.5A.In a power cycles T, two phase winding of U, V is powered simultaneously, in the first sub-period t1,
The electrical current of two phase windings is I1, at the end of the first sub-period t1, the induced electromotive force of U, V two-phase is detected, according to U phase
Induced electromotive force calculates the rotational angle of rotor, and the rotational angle of rotor is also calculated according to the induced electromotive force of V phase, compares this
Whether two rotational angles are identical；If it is different, then controlling compressor shutdown, and warning note；If they are the same, then judge rotational angle
Whether within the scope of set angle；If it is not, then compressor shutdown, and warning note；If so, into the second sub-period t2, and
Control electrical current is I2.When in the second sub-period t2 to the 5th sub-period t5, above-mentioned steps are equally executed.In the 6th period of the day from 11 p.m. to 1 a.m
In section t6, the electrical currents of two phase windings is I6, executes above-mentioned steps, if the rotational angle of rotor within the scope of set angle,
Then enter next power cycles, control two phase winding of U, W is powered simultaneously.In the power cycles that two phase winding of U, W is powered simultaneously
It is interior, also execute above-mentioned similar step.
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 (8)
1. a kind of control method for reducing compressor preheating noise, it is characterised in that:
When compressor preheating, it is powered to compressor winding U, V, W timesharing, in each power cycles, two phase windings of control are powered,
And the electrical current of every phase winding is fluctuating current；
Each power cycles are divided into multiple sub-periods, and the electrical current controlled in same sub-period is equal in magnitude, control adjacent
The electrical current of sub-period differs in size；
At the set time point in each sub-period, the rotational angle of compressor drum is obtained；
Judge rotational angle whether within the scope of set angle；
If so, after the sub-period, into next sub-period or next power cycles；
If it is not, then compressor shutdown.
2. control method according to claim 1, it is characterised in that: each power cycles are divided into six sub-periods, according to
Secondary is the first sub-period, the second sub-period, third sub-period, the 4th sub-period, the 5th sub-period, the 6th sub-period.
3. control method according to claim 2, it is characterised in that: the second son of electrical current I1 < in the first sub-period
The electrical current I4 in the 4th sub-period of electrical current I3 < in electrical current I2 < third sub-period in period；
Energization electricity in the 6th sub-period of electrical current I5 > in the 5th sub-period of electrical current I4 > in 4th sub-period
Flow I6.
4. control method according to claim 3, it is characterised in that: each power cycles are 600 seconds, and each sub-period is
100 seconds；I1 ∈ [1A, 2A), I2 ∈ [2A, 3A), I3 ∈ [3A, 5A), and I4 ∈ [5A, 6A), I5=I3, I6=I2.
5. control method according to claim 1, it is characterised in that: judge rotational angle whether in set angle described
Before in range, the method also includes:
According to the induced electromotive force of two phase windings of energization, the rotational angle of compressor drum is calculated separately out；
Whether identical compare the two rotational angles；
If it is not, then controlling compressor shutdown；
If so, judging rotational angle whether within the scope of set angle.
6. control method according to claim 1 or 5, it is characterised in that: while compressor shutdown, warning note.
7. control method according to claim 1, it is characterised in that: before compressor preheating, the control method is also
Include:
Outdoor environment temperature Ta is obtained, the preheating time of each preheating cycle is determined according to outdoor environment temperature Ta.
8. control method according to claim 7, it is characterised in that: it is described determined according to outdoor environment temperature Ta it is each pre-
It preheating time in heat cycle, specifically includes:
If the first set temperature of Ta >, preheating time 0；
If the second set temperature < set temperature of Ta≤first, preheating time is the 1/3 of entire preheating cycle；
If the third set temperature < set temperature of Ta≤second, preheating time is the 1/2 of entire preheating cycle；
If Ta≤third set temperature, preheating time is entire preheating cycle.
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| CN201710399863.4A CN107246392B (en) | 2017-05-31 | 2017-05-31 | A kind of control method reducing compressor preheating noise |
| PCT/CN2018/086806 WO2018219135A1 (en) | 2017-05-31 | 2018-05-15 | Control method for reducing compressor preheating noise |
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| CN201710399863.4A CN107246392B (en) | 2017-05-31 | 2017-05-31 | A kind of control method reducing compressor preheating noise |
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| CN107246392B true CN107246392B (en) | 2019-03-01 |
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Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107246392B (en) * | 2017-05-31 | 2019-03-01 | 青岛海尔空调器有限总公司 | A kind of control method reducing compressor preheating noise |
| CN108444059A (en) * | 2018-03-31 | 2018-08-24 | 青岛海尔空调器有限总公司 | The control method of air-conditioning under heating mode |
| CN108444058A (en) * | 2018-03-31 | 2018-08-24 | 青岛海尔空调器有限总公司 | The control method of air-conditioning under heating mode |
| CN108397879A (en) * | 2018-03-31 | 2018-08-14 | 青岛海尔空调器有限总公司 | The control method of air-conditioning under heating mode |
| CN108548293A (en) * | 2018-03-31 | 2018-09-18 | 青岛海尔空调器有限总公司 | The control method of air-conditioning under heating mode |
| CN108562008A (en) * | 2018-03-31 | 2018-09-21 | 青岛海尔空调器有限总公司 | The control method of air-conditioning under heating mode |
| CN108444063A (en) * | 2018-03-31 | 2018-08-24 | 青岛海尔空调器有限总公司 | The control method of air-conditioning under heating mode |
| CN114251801A (en) * | 2020-09-21 | 2022-03-29 | 海信（山东）空调有限公司 | Intelligent control method for low-temperature electromagnetic heating of air conditioner and compressor |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN107246392A (en) | 2017-10-13 |
| WO2018219135A1 (en) | 2018-12-06 |
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