CN105953372B - Phase shortage control method, phase shortage control device and the air conditioner of compressor - Google Patents
Phase shortage control method, phase shortage control device and the air conditioner of compressor Download PDFInfo
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- CN105953372B CN105953372B CN201610338510.9A CN201610338510A CN105953372B CN 105953372 B CN105953372 B CN 105953372B CN 201610338510 A CN201610338510 A CN 201610338510A CN 105953372 B CN105953372 B CN 105953372B
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- Prior art keywords
- compressor
- phase
- deficient operation
- phase shortage
- running frequency
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/83—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B49/00—Arrangement or mounting of control or safety devices
- F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
- F25B49/022—Compressor control arrangements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/83—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers
- F24F11/85—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers using variable-flow pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2600/00—Control issues
- F25B2600/02—Compressor control
- F25B2600/025—Compressor control by controlling speed
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2700/00—Sensing or detecting of parameters; Sensors therefor
- F25B2700/17—Speeds
- F25B2700/171—Speeds of the compressor
Abstract
The present invention provides a kind of phase shortage control method of compressor, phase shortage control device and air conditioners, wherein the phase shortage control method of compressor, comprising: judge compressor whether phase-deficient operation；When determining the compressor phase-deficient operation, controls the compressor and continued to run with the running frequency not higher than the first preset frequency value.Technical solution of the present invention makes when phase shortage occurs in compressor, can guarantee under the premise of not damaging the component in circuit, and control compressor continues to run, and then can guarantee that air conditioner works on to meet the needs of user is using air conditioner.
Description
Technical field
The present invention relates to Compressor Technology fields, phase shortage control method, a kind of pressure in particular to a kind of compressor
The phase shortage control device and a kind of air conditioner of contracting machine.
Background technique
When there is phase shortage under case of heavy load in the air conditioner of three phase supply, can due to electric current it is larger and to some components
Cause biggish damage, therefore, current processing scheme be usually all when there is phase shortage in air conditioner, directly control air conditioner into
Enter stoppage protection state.But when there is phase shortage in the case of air conditioner is in underloading, electric current can't be especially big, first at this time
Device is in a safe condition, undoubtedly can be empty to being badly in need of using if also directly controlling air conditioner enters stoppage protection state
The user of device is adjusted to impact.
Therefore, how when phase shortage occurs in air conditioner, air-conditioning can be controlled under the premise of ensuring that component is not compromised
Device is continued to run to meet the needs of users and become technical problem urgently to be resolved.
Summary of the invention
The present invention is directed to solve at least one of the technical problems existing in the prior art or related technologies.
For this purpose, an object of the present invention is to provide a kind of phase shortage control methods of new compressor, so that pressing
When phase shortage occurs in contracting machine, it can guarantee under the premise of not damaging the component in circuit, control compressor continues to run, in turn
It can guarantee that air conditioner works on to meet the needs of user is using air conditioner.
It is another object of the present invention to the phase shortage control device for proposing a kind of compressor and there is phase shortage control
The air conditioner of device.
To achieve the above object, according to the embodiment of the first aspect of the invention, a kind of phase shortage control of compressor is proposed
Method processed, comprising: judge compressor whether phase-deficient operation；When determining the compressor phase-deficient operation, the compressor is controlled
It is continued to run with the running frequency not higher than the first preset frequency value.
The phase shortage control method of the compressor of embodiment according to the present invention, the compressor can be the compression in air conditioner
Machine, by when detecting compressor phase-deficient operation, control compressor with the running frequency not higher than the first preset frequency value after
Reforwarding row, so that can guarantee under the premise of not damaging the component in circuit when phase shortage occurs in compressor, control compression
Machine continues to run, and then can guarantee that air conditioner works on to meet the needs of user is using air conditioner.
The phase shortage control method of compressor according to the abovementioned embodiments of the present invention, can also have following technical characteristic:
According to one embodiment of present invention, it is described judge compressor whether phase-deficient operation the step of before, further includes:
Detect the running frequency of the compressor；When the running frequency of the compressor reaches the second preset frequency value, described in execution
Judge compressor whether phase-deficient operation the step of.
In this embodiment, due to when the running frequency of compressor is lower, even if there is the problem of phase shortage in compressor, temporarily
When system will not be damaged, therefore can only judge again when the running frequency of compressor reaches the second preset frequency value
Compressor whether phase-deficient operation, avoid it is lasting judge compressor whether phase-deficient operation and increase the work load of system.Wherein,
First preset frequency value is preferably lower than or equal to the second preset frequency value.
According to one embodiment of present invention, it is described judge compressor whether phase-deficient operation the step of, specifically include: detection
The electric current of first phase of the compressor and the electric current of the second phase；If the electric current of first phase is greater than or equal to the first predetermined electricity
Flow valuve, second phase electric current be less than or equal to the second predetermined current value, and continue the first scheduled duration, then determine described in
Compressor phase-deficient operation.
Wherein, the control of first phase and the described second to be mutually in the three phase mains of the compressor be not compressor
The two-phase of device power supply processed.
In this embodiment, if being that phase phase shortage of controller power supply in compressor, the controller of compressor can be straight
Connect power-off；And when any phase phase shortage in remaining two-phase, the phase current of the phase can be reduced, and the phase current of another phase can become
Greatly, thus can detecte the phase current of this two-phase come determine compressor whether phase-deficient operation.In one embodiment of the invention,
First scheduled duration can be 2 minutes or so；The first predetermined current value component demonstrate,proved in circuit that can go bail for is reliable and secure
The 60% to 100% of maximum current value；1.5 times of left sides of minimum current value when the second predetermined current value can take compressor to run
It is right.
According to one embodiment of present invention, the phase shortage control method of the compressor, further includes: determining the compression
After machine phase-deficient operation, prompt messages are issued.
In this embodiment, by issuing prompt messages, can mention in time after determining compressor phase-deficient operation
Awake user repairs.It wherein, both can be in control compressor to be not higher than the running frequency of the first preset frequency value after reforwarding
While row, prompt messages are issued, a period of time can also be continued to run in control compressor and then sending alarm mentions
Show information.
According to one embodiment of present invention, the phase shortage control method of the compressor, further includes: controlling the compression
When machine reaches the second scheduled duration with the duration that the running frequency not higher than the first preset frequency value continues to run, the pressure is controlled
Contracting machine is shut down.
The phase shortage control method of the compressor of embodiment according to the present invention, by controlling compressor to be not higher than first
When the duration that the running frequency of preset frequency value continues to run reaches the second scheduled duration, compressor shutdown is controlled, it can be to avoid
Compressor long-time phase-deficient operation and the component in circuit is damaged.
A kind of embodiment according to a second aspect of the present invention, it is also proposed that phase shortage control device of compressor, comprising: judgement
Unit, for judge compressor whether phase-deficient operation；Control unit, for determining the compressor phase shortage in the judging unit
When operation, controls the compressor and continued to run with the running frequency not higher than the first preset frequency value.
The phase shortage control device of the compressor of embodiment according to the present invention, the compressor can be the compression in air conditioner
Machine, by when detecting compressor phase-deficient operation, control compressor with the running frequency not higher than the first preset frequency value after
Reforwarding row, so that can guarantee under the premise of not damaging the component in circuit when phase shortage occurs in compressor, control compression
Machine continues to run, and then can guarantee that air conditioner works on to meet the needs of user is using air conditioner.
The phase shortage control device of compressor according to the abovementioned embodiments of the present invention, can also have following technical characteristic:
According to one embodiment of present invention, the phase shortage control device of the compressor, further includes: first detection unit,
For detecting the running frequency of the compressor；The judging unit is specifically used for, and detects institute in the first detection unit
When stating the running frequency of compressor and reaching the second preset frequency value, execution judge the compressor whether the operation of phase-deficient operation.
In this embodiment, due to when the running frequency of compressor is lower, even if there is the problem of phase shortage in compressor, temporarily
When system will not be damaged, therefore can only judge again when the running frequency of compressor reaches the second preset frequency value
Compressor whether phase-deficient operation, avoid it is lasting judge compressor whether phase-deficient operation and increase the work load of system.Wherein,
First preset frequency value is preferably lower than or equal to the second preset frequency value.
According to one embodiment of present invention, the judging unit includes: second detection unit, for detecting the compression
The electric current of first phase of machine and the electric current of the second phase；Execution unit is greater than or equal to first for the electric current in first phase
Predetermined current value, second phase electric current be less than or equal to the second predetermined current value, and when continuing the first scheduled duration, sentence
The fixed compressor phase-deficient operation.
Wherein, the control of first phase and the described second to be mutually in the three phase mains of the compressor be not compressor
The two-phase of device power supply processed.
In this embodiment, if being that phase phase shortage of controller power supply in compressor, the controller of compressor can be straight
Connect power-off；And when any phase phase shortage in remaining two-phase, the phase current of the phase can be reduced, and the phase current of another phase can become
Greatly, thus can detecte the phase current of this two-phase come determine compressor whether phase-deficient operation.In one embodiment of the invention,
First scheduled duration can be 2 minutes or so；The first predetermined current value component demonstrate,proved in circuit that can go bail for is reliable and secure
The 60% to 100% of maximum current value；1.5 times of left sides of minimum current value when the second predetermined current value can take compressor to run
It is right.
According to one embodiment of present invention, the phase shortage control device of the compressor, further includes: warning note unit,
For issuing prompt messages after the judging unit determines the compressor phase-deficient operation.
In this embodiment, by issuing prompt messages, can mention in time after determining compressor phase-deficient operation
Awake user repairs.It wherein, both can be in control compressor to be not higher than the running frequency of the first preset frequency value after reforwarding
While row, prompt messages are issued, a period of time can also be continued to run in control compressor and then sending alarm mentions
Show information.
According to one embodiment of present invention, described control unit is also used to: controlling the compressor not higher than the
When the duration that the running frequency of one preset frequency value continues to run reaches the second scheduled duration, the compressor shutdown is controlled.
The phase shortage control device of the compressor of embodiment according to the present invention, by controlling compressor to be not higher than first
When the duration that the running frequency of preset frequency value continues to run reaches the second scheduled duration, compressor shutdown is controlled, it can be to avoid
Compressor long-time phase-deficient operation and the component in circuit is damaged.
A kind of embodiment according to a third aspect of the present invention, it is also proposed that air conditioner, comprising: compressor；And it is such as above-mentioned
The phase shortage control device of any one compressor as described in the examples.
Additional aspect and advantage of the invention will be set forth in part in the description, and will partially become from the following description
Obviously, or practice through the invention is recognized.
Detailed description of the invention
Above-mentioned and/or additional aspect of the invention and advantage will become from the description of the embodiment in conjunction with the following figures
Obviously and it is readily appreciated that, in which:
Figure 1A shows the schematic flow diagram of the phase shortage control method of compressor according to first embodiment of the invention；
Figure 1B shows the schematic flow diagram of the phase shortage control method of the compressor of second embodiment according to the present invention；
Fig. 2 shows the schematic flow diagrams of the phase shortage control method of the compressor of third embodiment according to the present invention；
Fig. 3 shows the schematic block diagram of the phase shortage control device of embodiment according to the present invention compressor；
Fig. 4 shows the schematic block diagram of the air conditioner of embodiment according to the present invention.
Specific embodiment
To better understand the objects, features and advantages of the present invention, with reference to the accompanying drawing and specific real
Applying mode, the present invention is further described in detail.It should be noted that in the absence of conflict, the implementation of the application
Feature in example and embodiment can be combined with each other.
In the following description, numerous specific details are set forth in order to facilitate a full understanding of the present invention, still, the present invention may be used also
To be implemented using other than the one described here other modes, therefore, protection scope of the present invention is not by described below
Specific embodiment limitation.
As shown in Figure 1A, the phase shortage control method of compressor according to first embodiment of the invention, comprising:
Step S104, judge compressor whether phase-deficient operation.
In one embodiment of the invention, step S104 is specifically included: detecting the electric current of the first phase of the compressor
With the electric current of the second phase；If it is small that the electric current of first phase is greater than or equal to the first predetermined current value, the electric current of second phase
In or be equal to the second predetermined current value, and continue the first scheduled duration, then determine the compressor phase-deficient operation.
Wherein, the control of first phase and the described second to be mutually in the three phase mains of the compressor be not compressor
The two-phase of device power supply processed.
In this embodiment, if being that phase phase shortage of controller power supply in compressor, the controller of compressor can be straight
Connect power-off；And when any phase phase shortage in remaining two-phase, the phase current of the phase can be reduced, and the phase current of another phase can become
Greatly, thus can detecte the phase current of this two-phase come determine compressor whether phase-deficient operation.In one embodiment of the invention,
First scheduled duration can be 2 minutes or so；The first predetermined current value component demonstrate,proved in circuit that can go bail for is reliable and secure
The 60% to 100% of maximum current value；1.5 times of left sides of minimum current value when the second predetermined current value can take compressor to run
It is right.
Step S106 controls the compressor not higher than the first predetermined frequency when determining the compressor phase-deficient operation
The running frequency of rate value continues to run.
Wherein, compressor can be the compressor in air conditioner, by the way that when detecting compressor phase-deficient operation, control is pressed
Contracting machine is continued to run with the running frequency not higher than the first preset frequency value, so that can guarantee when phase shortage occurs in compressor
Under the premise of not damaging the component in circuit, control compressor is continued to run, and then can guarantee that air conditioner works on
To meet the needs of user is using air conditioner.
In one embodiment of the invention, as shown in Figure 1B, before step S104, further includes:
Step S102 detects the running frequency of compressor, reaches the second preset frequency in the running frequency of the compressor
When value, step S104 is executed.
Specifically, due to when the running frequency of compressor is lower, even if there is the problem of phase shortage in compressor, temporarily also not
System can be damaged, therefore only can judge compressor again when the running frequency of compressor reaches the second preset frequency value
Whether phase-deficient operation, avoid it is lasting judge compressor whether phase-deficient operation and increase the work load of system.Wherein, first is pre-
Determine frequency values and is preferably lower than or equal to the second preset frequency value.
Phase shortage control method based on compressor shown in Figure 1A and Figure 1B works as step in one embodiment of the invention
In rapid S106 after determining compressor phase-deficient operation, it can be sent out prompt messages.
In this embodiment, by issuing prompt messages, can mention in time after determining compressor phase-deficient operation
Awake user repairs.
Wherein, above-mentioned prompt messages are issued for when, and the invention proposes the following two kinds modes:
Mode 1: it while control compressor is continued to run with the running frequency not higher than the first preset frequency value, issues
Prompt messages.Which to issue prompt messages when detecting compressor phase-deficient operation to mention to user
Show, and then user can clearly know that compressor is not only to have can guarantee continuing to run for compressor in this way, but also can in phase-deficient operation
User is set to have ample time to contact maintenance personal to compressor and repair.
Mode 2: a period of time is continued to run in control compressor and then issues prompt messages.
Wherein, prompt messages can be prompted by way of sound and/or light, while can also show failure generation
Code.
In one embodiment of the present of invention, the phase shortage control method of the compressor, further includes: controlling the compressor
When reaching the second scheduled duration with the duration that the running frequency not higher than the first preset frequency value continues to run, the compression is controlled
Machine is shut down.
In this embodiment, by being continued to run in control compressor with the running frequency for being not higher than the first preset frequency value
Duration when reaching the second scheduled duration, control compressor shutdown, can be to avoid compressor long-time phase-deficient operation and to circuit
In component damage.Wherein, the second scheduled duration can be or so half an hour.
Fig. 2 shows the schematic flow diagram of the phase shortage control method of the compressor of third embodiment according to the present invention,
In this embodiment, it is illustrated by taking the compressor in air conditioner as an example.
As shown in Fig. 2, the phase shortage control method of the compressor of third embodiment according to the present invention, comprising:
Step 202, air conditioner is switched on.
Step 204, compressor start.
Step 206, judge whether the running frequency of compressor is greater than or equal to MHz, if so, thening follow the steps 208；It is no
Then, step 220 is executed.
Step 208, wherein biphase current Ia and Ib is detected in the three phase mains of compressor.Wherein, this two-phase is not for pressure
The two-phase of the controller power supply of contracting machine.
Step 210, judge Ia >=IphaseMax and whether Ib≤IphaseMin is true, if so, thening follow the steps 214；
Otherwise, step 212 is executed.
Step 212, judge Ib >=IphaseMax and whether Ia≤IphaseMin is true, if so, thening follow the steps 214；
Otherwise, step 218 is executed.
Whether above-mentioned steps 210 and step 212 when being executed can be without sequencings, as long as judging one big in Ia and Ib
In or be equal to IphaseMax, and another be less than or equal to IphaseMin.Wherein, IphaseMax is that component can in circuit
1.5 times or so of minimum current when taking compressor to run by 60%~100%, IphaseMin of the maximum current value of safety.
Step 214, judge whether phase shortage timer is greater than or equal to t1, if so, thening follow the steps 216.Wherein, t1 can be with
It is 2 minutes.
Step 216, decision-making system phase shortage, and execute step 220.
Step 218, phase shortage timer is reset, and executes step 220.
Step 220, judge system whether phase shortage, if so, thening follow the steps 224；Otherwise, step 222 is executed.
Step 222, compressor operates normally.
Step 224, compressor limit frequency is run, not more than NHz.
Step 226, the duration for limiting the frequency operation of compressor is judged whether more than t2, if so, thening follow the steps 228；
Otherwise, return step 224.Wherein, t2 can be or so half an hour.
Step 228, into phase shortage stoppage protection state.
Fig. 3 shows the schematic block diagram of the phase shortage control device of embodiment according to the present invention compressor.
As shown in figure 3, the phase shortage control device 300 of embodiment according to the present invention compressor, comprising: judging unit 304
With control unit 306.
Wherein, judging unit 304 for judge compressor whether phase-deficient operation；Control unit 306 is used in the judgement
When unit 304 determines the compressor phase-deficient operation, the compressor is controlled with the operation frequency not higher than the first preset frequency value
Rate continues to run.
Specifically, compressor can be the compressor in air conditioner, by controlling when detecting compressor phase-deficient operation
Compressor processed is continued to run with the running frequency not higher than the first preset frequency value, so that when phase shortage occurs in compressor, it can
Guarantee under the premise of not damaging the component in circuit, control compressor continues to run, and then can guarantee that air conditioner continues
Work is to meet the needs of user is using air conditioner.
In one embodiment of the invention, the phase shortage control device 200 of compressor, further includes: first detection unit
302, for detecting the running frequency of the compressor；The judging unit 304 is specifically used for, in the first detection unit
302 when detecting that the running frequency of the compressor reaches the second preset frequency value, execution judge the compressor whether phase shortage
The operation of operation.
In this embodiment, due to when the running frequency of compressor is lower, even if there is the problem of phase shortage in compressor, temporarily
When system will not be damaged, therefore can only judge again when the running frequency of compressor reaches the second preset frequency value
Compressor whether phase-deficient operation, avoid it is lasting judge compressor whether phase-deficient operation and increase the work load of system.Wherein,
First preset frequency value is preferably lower than or equal to the second preset frequency value.
In one embodiment of the invention, judging unit 304 includes: second detection unit 3042, described for detecting
The electric current of first phase of compressor and the electric current of the second phase；Execution unit 3044, for being greater than in the electric current of first phase or
Electric current equal to the first predetermined current value, second phase is less than or equal to the second predetermined current value, and it is predetermined to continue first
When duration, the compressor phase-deficient operation is determined.
Wherein, the control of first phase and the described second to be mutually in the three phase mains of the compressor be not compressor
The two-phase of device power supply processed.
In this embodiment, if being that phase phase shortage of controller power supply in compressor, the controller of compressor can be straight
Connect power-off；And when any phase phase shortage in remaining two-phase, the phase current of the phase can be reduced, and the phase current of another phase can become
Greatly, thus can detecte the phase current of this two-phase come determine compressor whether phase-deficient operation.In one embodiment of the invention,
First scheduled duration can be 2 minutes or so；The first predetermined current value component demonstrate,proved in circuit that can go bail for is reliable and secure
The 60% to 100% of maximum current value；1.5 times of left sides of minimum current value when the second predetermined current value can take compressor to run
It is right.
In one embodiment of the invention, the phase shortage control device 300 of compressor, further includes: warning note unit
308, for issuing prompt messages after the judging unit 304 determines the compressor phase-deficient operation.
In this embodiment, by issuing prompt messages, can mention in time after determining compressor phase-deficient operation
Awake user repairs.It wherein, both can be in control compressor to be not higher than the running frequency of the first preset frequency value after reforwarding
While row, prompt messages are issued, a period of time can also be continued to run in control compressor and then sending alarm mentions
Show information.
According to one embodiment of present invention, described control unit 306 is also used to: controlling the compressor to be not higher than
When the duration that the running frequency of first preset frequency value continues to run reaches the second scheduled duration, the compressor shutdown is controlled.
In this embodiment, by being continued to run in control compressor with the running frequency for being not higher than the first preset frequency value
Duration when reaching the second scheduled duration, control compressor shutdown, can be to avoid compressor long-time phase-deficient operation and to circuit
In component damage.
The phase shortage control device 300 of compressor shown in Fig. 3 can be applied in air conditioner, specifically, such as Fig. 4 institute
Show, the air conditioner 400 of embodiment according to the present invention, comprising: compressor 402；And the phase shortage of compressor as shown in Figure 3
Control device 300.
The technical scheme of the present invention has been explained in detail above with reference to the attached drawings, and the invention proposes a kind of lacking for new compressor
Phase control scheme controls so that can guarantee under the premise of not damaging the component in circuit when phase shortage occurs in compressor
Compressor continues to run, and then can guarantee that air conditioner works on to meet the needs of user is using air conditioner.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (9)
1. a kind of phase shortage control method of compressor characterized by comprising
Judge compressor whether phase-deficient operation；
When determining the compressor phase-deficient operation, the compressor is controlled to be not higher than the running frequency of the first preset frequency value
It continues to run；It is described judge compressor whether phase-deficient operation the step of, specifically include:
Detect the electric current of the first phase of the compressor and the electric current of the second phase；
If the electric current of first phase is greater than or equal to the first predetermined current value, the electric current of second phase is less than or equal to second
Predetermined current value, and continue the first scheduled duration, then determine the compressor phase-deficient operation；
Wherein, the controller of first phase and the described second to be mutually in the three phase mains of the compressor be not compressor
The two-phase of power supply.
2. the phase shortage control method of compressor according to claim 1, which is characterized in that whether judge compressor described
Before the step of phase-deficient operation, further includes:
Detect the running frequency of the compressor；
When the running frequency of the compressor reaches the second preset frequency value, execute it is described judge compressor whether phase-deficient operation
The step of.
3. the phase shortage control method of compressor according to claim 1, which is characterized in that further include:
After determining the compressor phase-deficient operation, prompt messages are issued.
4. the phase shortage control method of compressor according to any one of claim 1 to 3, which is characterized in that further include:
Reach the controlling the compressor with the duration that the running frequency not higher than the first preset frequency value continues to run
When two scheduled durations, the compressor shutdown is controlled.
5. a kind of phase shortage control device of compressor characterized by comprising
Judging unit, for judge compressor whether phase-deficient operation；
Control unit, for controlling the compressor with not high when the judging unit determines the compressor phase-deficient operation
It is continued to run in the running frequency of the first preset frequency value；
The judging unit includes:
Second detection unit, for detecting the electric current of the first phase of the compressor and the electric current of the second phase；
Execution unit is greater than or equal to the electric current of the first predetermined current value, second phase for the electric current in first phase
Less than or equal to the second predetermined current value, and when continuing the first scheduled duration, the compressor phase-deficient operation is determined；
Wherein, the controller of first phase and the described second to be mutually in the three phase mains of the compressor be not compressor
The two-phase of power supply.
6. the phase shortage control device of compressor according to claim 5, which is characterized in that further include: first detection unit,
For detecting the running frequency of the compressor；
The judging unit is specifically used for, and detects that the running frequency of the compressor reaches second in the first detection unit
When preset frequency value, execution judge the compressor whether the operation of phase-deficient operation.
7. the phase shortage control device of compressor according to claim 5, which is characterized in that further include:
Warning note unit, for after the judging unit determines the compressor phase-deficient operation, issuing warning note letter
Breath.
8. the phase shortage control device of compressor according to any one of claims 5 to 7, which is characterized in that the control
Unit is also used to:
Reach the controlling the compressor with the duration that the running frequency not higher than the first preset frequency value continues to run
When two scheduled durations, the compressor shutdown is controlled.
9. a kind of air conditioner characterized by comprising
Compressor；And
The phase shortage control device of compressor as described in any one of claim 5 to 8.
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| CN106526343B (en) * | 2016-11-30 | 2019-05-14 | 杭州先途电子有限公司 | The detection method of compressor phase shortage electric current |
| CN111664554B (en) * | 2020-04-27 | 2022-04-12 | 广东开利暖通空调股份有限公司 | Phase-loss detection method and device, storage medium and air conditioner |
| CN112283087B (en) * | 2020-09-07 | 2022-05-27 | 珠海格力节能环保制冷技术研究中心有限公司 | Compressor control method with open-phase protection function and controller thereof |
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| CN101227079A (en) * | 2007-12-26 | 2008-07-23 | 苏州新亚科技有限公司 | Protector special for digital type compressor |
| CN101916982A (en) * | 2010-08-09 | 2010-12-15 | 宁波奥克斯空调有限公司 | Judgement and protection method for open phase of frequency-conversion air conditioner compressor |
| CN103033769A (en) * | 2012-12-28 | 2013-04-10 | 海信（山东）空调有限公司 | Fault detection method of three-phase power supply |
| CN105091186A (en) * | 2014-04-29 | 2015-11-25 | 珠海格力电器股份有限公司 | Phase sequence protection method and system of air conditioning unit |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8713952B2 (en) * | 2010-02-24 | 2014-05-06 | Mingsheng Liu | Optimizer for two staged refrigeration systems |
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|---|---|---|---|---|
| CN101227079A (en) * | 2007-12-26 | 2008-07-23 | 苏州新亚科技有限公司 | Protector special for digital type compressor |
| CN101916982A (en) * | 2010-08-09 | 2010-12-15 | 宁波奥克斯空调有限公司 | Judgement and protection method for open phase of frequency-conversion air conditioner compressor |
| CN103033769A (en) * | 2012-12-28 | 2013-04-10 | 海信（山东）空调有限公司 | Fault detection method of three-phase power supply |
| CN105091186A (en) * | 2014-04-29 | 2015-11-25 | 珠海格力电器股份有限公司 | Phase sequence protection method and system of air conditioning unit |
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