CN106123417B - A kind of control method and control device of compressor of air conditioner startup - Google Patents
A kind of control method and control device of compressor of air conditioner startup Download PDFInfo
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- CN106123417B CN106123417B CN201610495302.XA CN201610495302A CN106123417B CN 106123417 B CN106123417 B CN 106123417B CN 201610495302 A CN201610495302 A CN 201610495302A CN 106123417 B CN106123417 B CN 106123417B
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Classifications
-
- 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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/24—Means for preventing or suppressing noise
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/24—Means for preventing or suppressing noise
- F24F2013/247—Active noise-suppression
-
- 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
- F25B2500/00—Problems to be solved
- F25B2500/12—Sound
-
- 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
Abstract
The present invention relates to a kind of control methods of cooler compressor startup and control device, control method to include：According to the rotating speed of compressor drum, judge whether compressor is in halted state；If compressor is in halted state, air-conditioning state is detected, and obtains previous compressor start pattern；According to air-conditioning state and previous compressor start pattern, determines and work as second compression machine start-up mode；Compressor is controlled according to when second compression machine start-up mode starts；According to after second compression machine start-up mode starts, control compressor is run machine to be compressed according to predetermined speed.The control method and control device that cooler compressor provided by the invention starts, can determine the startup method of compressor according to the virtual condition of air-conditioning system, can also reduce noise and energy consumption while ensuring that compressor is easy startup.
Description
Technical field
The control method and control started the present invention relates to air conditioner technical field more particularly to a kind of compressor of air conditioner fills
It sets.
Background technology
Convertible frequency air-conditioner is more energy saving, efficient compared to fixed frequency air conditioner.Frequency-changeable compressor used in convertible frequency air-conditioner room at present,
It includes the following four stage to start control method：(1) DC excitation positions；(2) open loop pulls；(3) open loop turns closed loop；(4) it closes
Ring controls.Two stages are pulled in DC excitation and open loop, start failure in order to prevent, starting current/torque is just greater than reality
Border starts the starting current/torque needed, however excessive starting current/torque will produce vibration and noise, influences user and relaxes
Adaptive, and energy consumption is larger.
The startup method of another motor in frequency converter industry is：Detect motor rotor position, then closed-loop start-up, example
Such as：Elevator controlling.The characteristics of this startup method, is that starting current is small, noise is small, and relative energy-saving.
But due to air-conditioning system pressure by indoor and outdoor temperature influenced variation it is very big, and after compressor start due to
Compressor compresses refrigerant causes system pressure to change, and then compressor load is made also to change, and system disturbance increases, severe
Make compressor be easy to cause compressor start using closed-loop start-up using the above method in environment to fail, therefore above-mentioned startup method
It is not applied in air-conditioning system.
Invention content
Start the technical problem to be solved by the present invention is in view of the deficiencies of the prior art, provide a kind of compressor of air conditioner
Control method and control device.
The technical solution that the present invention solves above-mentioned technical problem is as follows：A kind of control method that cooler compressor starts,
Include the following steps：
Step 1, the rotating speed according to compressor drum, judge whether compressor is in halted state；
If step 2, the compressor are in halted state, air-conditioning state is detected, and obtains previous compressor start mould
Formula；
Step 3, according to the air-conditioning state and the previous compressor start pattern, determine when second compression machine starts mould
Formula；
Step 4, the control compressor start according to when second compression machine start-up mode；
Step 5, after the compressor according to after second compression machine start-up mode starts, controlling the compressor according to predetermined
Speed is run.
The beneficial effects of the invention are as follows：Pass through air-conditioning state when being in halted state according to compressor and previous compressor
Start-up mode determines and works as second compression machine start-up mode, and control compressor starts according to when second compression machine start-up mode, and according to pre-
Constant speed degree is run, and so as to determine the startup method of compressor according to the virtual condition of air-conditioning system, is ensuring compressor displacement
It can also reduce noise and energy consumption while easily startup.
Based on the above technical solution, the present invention can also be improved as follows.
Further, the air-conditioning state includes：Outdoor environment temperature T and the postboost duration of previous compressor
t。
Further, the previous compressor start pattern is closed-loop start-up pattern, and step 3 specifically includes：
Step 3.1 judges whether the postboost duration t of previous compressor is more than preset period of time t0, obtain first
Judging result；
Step 3.2 judges whether outdoor environment temperature T is less than high temperature threshold value THAnd it is more than low temperature threshold TL, obtain second and sentence
Disconnected result；
Step 3.3 judges whether previous compressor is started successfully with closed-loop start-up pattern, obtains third judging result；
Step 3.4, according to first judging result, second judging result and the third judging result, determine
When second compression machine start-up mode.
Further, step 3.4 is specially：When first judging result is that t is more than t0, second judging result be
T is more than TLAnd it is less than TH, and the third judging result is previous compressor when being started successfully with closed-loop start-up pattern, determines and works as
Second compression machine start-up mode is closed-loop start-up pattern.
Advantageous effect using above-mentioned further scheme is：In the case where above-mentioned compressor is easy entry condition, using low current
Closed-loop start-up can reduce compressor start vibration and noise, and more energy saving.
Further, step 3.4 is specially：When first judging result is that t is less than or equal to t0When, it determines when time pressure
Contracting machine start-up mode is that open loop pulls start-up mode；Or,
Second judging result is that T is less than or equal to TLWhen, it determines when second compression machine start-up mode is that open loop pulling is opened
Dynamic model formula；Or,
Second judging result is that T is greater than or equal to THWhen, it determines when second compression machine start-up mode is that open loop pulling is opened
Dynamic model formula；Or,
When the third judging result is that previous compressor starts failure with closed-loop start-up pattern, determine when second compression machine opens
Dynamic model formula is that open loop pulls start-up mode.
Advantageous effect using above-mentioned further scheme is：In the case where above-mentioned compressor is not easy entry condition, using open loop
Pulling mode starts, it can be ensured that compressor reliably starts, and effectively compressor start is avoided to fail.
Further, the previous compressor start pattern is that open loop pulls start-up mode, step 3 to specifically include：
Step 3.5 judges whether the postboost duration t of previous compressor is more than preset period of time t0, obtain first
Judging result；
Step 3.6 judges whether outdoor environment temperature T is less than high temperature threshold value THAnd it is more than low temperature threshold TL, obtain second and sentence
Disconnected result；
Step 3.7, according to first judging result and second judging result, determine when second compression machine starts mould
Formula.
Further, step 3.7 is specially：When first judging result is that t is more than t0, second judging result be
T is more than TLAnd it is less than THWhen, it determines when second compression machine start-up mode is closed-loop start-up pattern.
The another technical solution that the present invention solves above-mentioned technical problem is as follows：A kind of control that cooler compressor starts
Device, including：
Judgment module judges whether compressor is in halted state for the rotating speed according to compressor drum；
Processing module, for when the judgment module judges that the compressor is in halted state, detecting air-conditioning shape
State, and obtain previous compressor start pattern；
Determining module, the air-conditioning state for being obtained according to the processing module and the previous compressor start mould
Formula determines and works as second compression machine start-up mode；
Control module, for control the compressor according to the determining module determine when second compression machine start-up mode opens
It is dynamic, and control the compressor and run according to predetermined speed.
The beneficial effects of the invention are as follows：Pass through air-conditioning state when being in halted state according to compressor and previous compressor
Start-up mode determines and works as second compression machine start-up mode, and control compressor starts according to when second compression machine start-up mode, and according to pre-
Constant speed degree is run, and so as to determine the startup method of compressor according to the virtual condition of air-conditioning system, is ensuring compressor displacement
It can also reduce noise and energy consumption while easily startup.
The additional aspect of the present invention and its advantages of will be set forth in part in the description, partly will be from following description
In become apparent, or through the invention practice recognize.
Description of the drawings
Fig. 1 is the schematic flow chart for the control method that a kind of cooler compressor provided in an embodiment of the present invention starts；
Fig. 2 is the schematic flow for the control method that a kind of cooler compressor that another embodiment of the present invention provides starts
Figure；
Fig. 3 is the schematic flow for the control method that a kind of cooler compressor that another embodiment of the present invention provides starts
Figure；
Fig. 4 is the schematic flow for the control method that a kind of cooler compressor that another embodiment of the present invention provides starts
Figure；
Fig. 5 is the schematic flow for the control method that a kind of cooler compressor that another embodiment of the present invention provides starts
Figure；
Fig. 6 is the schematic structure frame for the control device that a kind of cooler compressor provided in an embodiment of the present invention starts
Figure；
Fig. 7 is the schematic structure for the control device that a kind of cooler compressor that another embodiment of the present invention provides starts
Block diagram；
Fig. 8 is the schematic structure for the control device that a kind of cooler compressor that another embodiment of the present invention provides starts
Block diagram；
Fig. 9 is the schematic structure for the control device that a kind of cooler compressor that another embodiment of the present invention provides starts
Block diagram.
Specific implementation mode
The principle and features of the present invention will be described below with reference to the accompanying drawings, and the given examples are served only to explain the present invention, and
It is non-to be used to limit the scope of the present invention.
Fig. 1 gives the schematic of the control method 100 that a kind of cooler compressor provided in an embodiment of the present invention starts
Flow chart.The executive agent of control method 100 as shown in Figure 1 can be the control device on air conditioner or air conditioner.Control
Method 100 includes：
110, according to the rotating speed of compressor drum, judge whether compressor is in halted state.
If 120, compressor is in halted state, air-conditioning state is detected, and obtains previous compressor start pattern.
130, it according to air-conditioning state and previous compressor start pattern, determines and works as second compression machine start-up mode.
140, control compressor starts according to when second compression machine start-up mode.
150, according to after second compression machine start-up mode starts, control compressor is run machine to be compressed according to predetermined speed.
The control method that the cooler compressor provided in above-described embodiment starts stops shape by being according to compressor
Air-conditioning state when state and previous compressor start pattern determine and work as second compression machine start-up mode, and control compressor is according to when secondary
Compressor start pattern starts, and is run according to predetermined speed, is compressed so as to be determined according to the virtual condition of air-conditioning system
The startup method of machine can also reduce noise and energy consumption while ensuring that compressor is easy startup.
Such as：In the case of conditions permit, start in the closed loop mode, realizes that smaller electric current/torque starts, reach quiet
Sound, energy-efficient effect, but if air-conditioning system in special adverse circumstances, is then started with open loop pull mode, realization high current/
Torque reliably starts.
In this embodiment, air-conditioning state may include：Outdoor environment temperature T and previous compressor it is postboost continue when
Between section t.
Optionally, as an embodiment of the present invention, when current second compression machine start-up mode is closed-loop start-up pattern, such as
Shown in Fig. 2, step 130 specifically includes：
131, judge whether the postboost duration t of previous compressor is more than preset period of time t0, obtain the first judgement
As a result；
132, judge whether outdoor environment temperature T is less than high temperature threshold value THAnd it is more than low temperature threshold TL, obtain the second judgement knot
Fruit；
133, judge whether previous compressor is started successfully with closed-loop start-up pattern, obtain third judging result；
134, it according to the first judging result, the second judging result and third judging result, determines when second compression machine starts mould
Formula.
Specifically, in this embodiment, in step 134, when following three conditions can meet simultaneously, i.e.,：T is more than
t0, T be more than TLAnd it is less than TH, and previous compressor is started successfully with closed-loop start-up pattern, is determined when second compression machine start-up mode is
Closed-loop start-up pattern.In step 140, control compressor starts according to the closed-loop start-up pattern determined in step 134.Step
140 can specifically include：(1), the position of compressor drum is detected；(2), compressor drum is controlled from the position that step (1) detects
It sets and starts running.In this embodiment it is possible to by high frequency signal injection method or other can detect compressor drum position
Method detects the position of compressor drum.
In the case where above-mentioned compressor is easy entry condition, using low current closed-loop start-up, compressor start vibration can be reduced
And noise, and it is more energy saving.
Alternatively, in step 134, when meeting following four condition for the moment, i.e.,：T is less than or equal to t0, T is less than or waits
In TL, T be greater than or equal to THAnd previous compressor starts failure with closed-loop start-up pattern, determines and works as second compression machine start-up mode
Start-up mode is pulled for open loop.In step 140, control compressor pulls start-up mode according to the open loop determined in step 134
Start.Step 140 can specifically include：1) DC excitation torque, is applied to compressor, realizes compressor drum positioning；2) it, controls
Compressor speed open loop processed gives electromagnetic torque, realizes compressor drum open-loop start-up and acceleration；3), compressor open loop operating speed
After degree reaches certain rotating speed, closed-loop control is switched to by opened loop control；4), control compressor is run under closed loop mode.
In the case where above-mentioned compressor is not easy entry condition, mode is pulled to start using open loop, it can be ensured that compressor is reliable
Start, effectively compressor start is avoided to fail.
In this embodiment, the entry condition of closed-loop start-up pattern is that compressor of air conditioner is easy the condition started, and open loop is drawn
The entry condition of dynamic start-up mode is that air-conditioning compressor starts relatively difficult condition.
It should be noted that in this embodiment, preset period of time t0Can according to after being shut down from air-conditioning system to system pressure
Power reaches the time of balance to determine.Since system pressure is big at air-conditioning system stop moment compressor exhaust pipe, muffler goes out
System pressure is small, and refrigerant is formed into a loop inside compressor and inside copper pipe automatically achieves system pressure balance.System pressure is flat
Starting load is small after weighing apparatus, it is not easy to step-out, that is to say, that restarts when system pressure is close to balance and is easy for.And it is uneven
When system pressure be easy to start step-out or overcurrent greatly to cause to start and fail.So preset period of time t0It can be 5 minutes, or be more than
It 5 minutes can also.
High temperature threshold value THIt can be determined according to air-conditioning system pressure.It can make air-conditioning system pressure since outdoor temperature is excessively high
Greatly, starting load is big, and being easy step-out or overcurrent causes to start failure, so high temperature threshold value THValue range can be 40 DEG C-
50 DEG C, 45 DEG C are selected under normal conditions.
Low temperature predetermined threshold value can be determined according to the viscosity of the refrigeration oil inside compressor.Due to the relatively low meeting of outdoor temperature
The refrigeration oil inside compressor is set to be in the state of cooling, the big friction of viscosity is big, and starting load is big, and being easy step-out or overcurrent causes to open
Dynamic failure.Low temperature threshold TLValue range can be -5 DEG C -0 DEG C, under normal conditions select 0 DEG C.It should be understood that in the embodiment
In, step 131,132,133 execution sequence there is no precedence relationship, may be performed simultaneously.
Optionally, as another embodiment of the present invention, current second compression machine start-up mode is that open loop pulls start-up mode
When, as shown in figure 3, step 130 specifically includes：
Step 135 judges whether the postboost duration t of previous compressor is more than preset period of time t0, obtain first
Judging result；
Step 136 judges whether outdoor environment temperature T is less than high temperature threshold value THAnd it is more than low temperature threshold TL, obtain second and sentence
Disconnected result；
Step 137, according to first judging result and second judging result, determine when second compression machine starts mould
Formula.
Specifically, in this embodiment, in step 137, when t is more than t0, T be more than TLAnd it is less than THWhen, it determines when time pressure
Contracting machine start-up mode is closed-loop start-up pattern.In step 140, control compressor is according to the closed-loop start-up determined in step 137
Pattern starts.Step 140 can specifically include (1) and (2) being outlined above.
Alternatively, in step 137, when meeting following three conditions for the moment, i.e.,：T is less than or equal to t0, T is less than or waits
In TL, T be greater than or equal to TH, determine when second compression machine start-up mode is that open loop pulls start-up mode.In step 140, control pressure
Contracting machine starts according to the open-loop start-up pattern determined in step 137.Step 140 can specifically include 1 be outlined above), 2),
3) and 4).
The control method that the cooler compressor provided in above-described embodiment starts, by the item for determining compressor start
Part, using low current closed-loop start-up, can reduce compressor start vibration and noise, and more under conditions of being easy to start
It is energy saving；Under conditions of being not easy startup, mode is pulled to start using open loop, it can be ensured that compressor reliably starts, effectively
Compressor start is avoided to fail.
Optionally, as another embodiment of the present invention, as shown in figure 4, control method 400 includes：
460, the instruction for starting compressor is received.
470, the rotating speed of compressor drum is detected.
410, according to the rotating speed of compressor drum, judge whether compressor is in halted state.
If so, i.e.：Compressor is in halted state, thens follow the steps 420；If it is not, i.e.：Compressor is in operating status,
Then follow the steps 450.
420, air-conditioning state is detected, and obtains previous compressor start pattern.
430, it according to air-conditioning state and previous compressor start pattern, determines and works as second compression machine start-up mode.
440, control compressor starts according to when second compression machine start-up mode.
450, according to after second compression machine start-up mode starts, control compressor is run machine to be compressed according to predetermined speed.
It should be noted that in this embodiment, step 410- steps 450 respectively with the step 110- steps 150 in Fig. 1
Similar, succinct for description, details are not described herein.
It should be understood that in various embodiments of the present invention, size of the sequence numbers of the above procedures is not meant to execute suitable
The execution sequence of the priority of sequence, each process should be determined by its function and internal logic, the implementation without coping with the embodiment of the present invention
Process constitutes any restriction.
With reference to Fig. 5, to a kind of technology for the control method that cooler compressor starts provided in an embodiment of the present invention
Scheme is described in detail.Method 500 as shown in Figure 5 includes：
510, the rotating speed of compressor drum is detected.
520, according to the rotating speed of the compressor drum detected in step 510, judge whether compressor is in halted state.If
It is to then follow the steps 530；If it is not, thening follow the steps 590.
530, judge whether to receive the instruction for starting compressor.If receiving, 540 are thened follow the steps；If not receiving
It arrives, then terminates.
540, air-conditioning state is detected, and obtains previous compressor start pattern.Wherein, air-conditioning state includes：Outdoor environment
The temperature T and postboost duration t of previous compressor.
551, judge whether the postboost duration t of previous compressor is more than preset period of time t0.If judging result is t
Less than or equal to t0, then follow the steps 570.
552, judge whether outdoor environment temperature T is less than high temperature threshold value THAnd it is more than low temperature threshold TL.If judging result is T
Less than or equal to TL, then follow the steps 570.If judging result, which is T, is greater than or equal to THWhen, then follow the steps 570.
553, judge whether previous compressor start pattern is closed-loop start-up pattern.If it is not, i.e.：Previous compressor start mould
Formula is that open loop pulls start-up mode, thens follow the steps 560.If so, i.e.：Previous compressor start pattern is closed-loop start-up pattern,
Then follow the steps 554.
554, judge whether previous compressor is started successfully with closed-loop start-up pattern.If it is not, i.e.：Previous compressor is with closed loop
Start-up mode starts failure, thens follow the steps 570.
560, when the judging result in step 551 is that t is more than t0, the judging result in step 552 be that T is more than TLAnd it is less than
TH, and the judging result in step 554 is previous compressor when being started successfully with closed-loop start-up pattern, determination is opened when second compression machine
Dynamic model formula is closed-loop start-up pattern.Alternatively, when the judging result in step 551 is that t is more than t0, judging result in step 552
It is more than T for TLAnd it is less than TH, and the judging result in step 553 be previous compressor with open loop pull start-up mode start when, really
Settled second compression machine start-up mode is closed-loop start-up pattern.
570, it determines when second compression machine start-up mode is that open loop pulls start-up mode.
580, control compressor starts according to closed-loop start-up pattern.
585, control compressor pulls start-up mode to start according to open loop.
590, machine to be compressed starts according to the closed-loop start-up pattern in step 580, or is drawn according to the open loop in step 585
After dynamic start-up mode starts, control compressor is run according to predetermined speed.
The control method that the cooler compressor provided in above-described embodiment starts stops shape by being according to compressor
Air-conditioning state when state and previous compressor start pattern determine and work as second compression machine start-up mode, and control compressor is according to when secondary
Compressor start pattern starts, and is run according to predetermined speed, is compressed so as to be determined according to the virtual condition of air-conditioning system
The startup method of machine can also reduce noise and energy consumption while ensuring that compressor is easy startup.
Above in association with Fig. 1 to Fig. 5, the controlling party that a kind of cooler compressor provided by the invention starts is described in detail
Method is retouched with reference to Fig. 6 to Fig. 9 is detailed to a kind of control device progress that cooler compressor starts provided by the invention
It states.
Fig. 6 gives the schematic of the control device 600 that a kind of cooler compressor provided in an embodiment of the present invention starts
Structure diagram.Control device 600 as shown in FIG. 6 can be the control device of air conditioner.Control device 600 includes：Judge mould
Block 610, processing module 620, determining module 630 and control module 640.Wherein,
Judgment module 610 is used for the rotating speed according to compressor drum, judges whether compressor is in halted state.Handle mould
Block 620 is used for when judgment module 610 judges that compressor is in halted state, detects air-conditioning state, and obtains preceding second compression
Machine start-up mode.The air-conditioning state and previous compressor start pattern that determining module 630 is used to be obtained according to processing module 620,
It determines and works as second compression machine start-up mode.Control module 640 works as second compression for controlling compressor according to what determining module 630 determined
Machine start-up mode starts, and in compressor according to after second compression machine start-up mode starts, control compressor is according to predetermined speed
Operation.
In this embodiment, air-conditioning state may include：Outdoor environment temperature T and previous compressor it is postboost continue when
Between section t.
Optionally, in this embodiment, control module 640 is additionally operable to, when judgment model 610 judges that compressor is in fortune
When row state, control compressor is run according to predetermined speed.
It should be understood that in embodiments of the present invention, control device 600 according to the ... of the embodiment of the present invention can correspond to according to this hair
The executive agent of the control method of bright embodiment, and above and other operation of the modules in control device 600 and/or
Function is respectively in order to realize the corresponding flow of each method in Fig. 1 to Fig. 5, for sake of simplicity, details are not described herein.
The control device that the cooler compressor that above-described embodiment provides starts, by being in halted state according to compressor
When air-conditioning state and previous compressor start pattern, determine work as second compression machine start-up mode, control compressor according to when time pressure
Contracting machine start-up mode starts, and is run according to predetermined speed, so as to determine compressor according to the virtual condition of air-conditioning system
Startup method, ensure compressor be easy start while can also reduce noise and energy consumption.
Such as：In the case of conditions permit, start in the closed loop mode, realizes that smaller electric current/torque starts, reach quiet
Sound, energy-efficient effect, but if air-conditioning system in special adverse circumstances, then open loop pull mode starts, realization high current/
Torque reliably starts.
Optionally, as an embodiment of the present invention, when current second compression machine start-up mode is closed-loop start-up pattern, such as
Shown in Fig. 7, determining module 630 specifically includes：First judging unit 631, second judgment unit 632,633 and of third judging unit
First determination unit 634.Wherein,
First judging unit 631 is for judging whether the postboost duration t of previous compressor is more than preset period of time
t0, obtain the first judging result.Second judgment unit 632 is for judging whether outdoor environment temperature T is less than high temperature threshold value THAnd it is big
In low temperature threshold TL, obtain the second judging result.Whether third judging unit 633 is for judging previous compressor with closed-loop start-up
Pattern starts successfully, obtains third judging result.
The first judging result, the second judgment unit that first determination unit 634 is used to be obtained according to the first judging unit 631
The third judging result that 632 the second obtained judging results and third judging unit 633 obtain is determined when second compression machine starts mould
Formula.
Specifically, in this embodiment, the first determination unit 634 is specifically used for, when following three conditions can meet simultaneously
When, i.e.,：T is more than t0, T be more than TLAnd it is less than THAnd previous compressor is started successfully with closed-loop start-up pattern, is determined when time pressure
Contracting machine start-up mode is closed-loop start-up pattern.Then control module 640 is specifically used for control compressor according to the first determination unit 634
Determining closed-loop start-up pattern starts.Control module 640 can specifically include：Detection unit and control unit.Wherein, detection is single
Position of the member for detecting compressor drum.Control unit is for controlling compressor drum since the position that detection unit detects
Operating.In this embodiment, detection unit can by high frequency signal injection method or other can detect compressor drum position
Method, detect the position of compressor drum.
Alternatively, the first determination unit 634 is specifically used for, when meeting following four condition for the moment, i.e.,：T is less than or equal to
t0, T be less than or equal to TL, T be greater than or equal to THAnd previous compressor starts failure with closed-loop start-up pattern, determines when time pressure
Contracting machine start-up mode is that open loop pulls start-up mode.Then it is single according to the first determination to be specifically used for control compressor for control module 640
The open loop that member 634 determines pulls start-up mode to start.Control module 640 can be specifically used for：DC excitation is applied to compressor
Torque, control compressor speed open loop gives electromagnetic torque, after compressor open loop running speed reaches certain rotating speed, by open loop control
System switchs to closed-loop control, and control compressor is run under closed loop mode.Wherein, the entry condition of closed-loop start-up pattern is air-conditioning pressure
Contracting machine is easy the condition started, and it is that air-conditioning compressor starts relatively hardly possible that open loop, which pulls the entry condition of start-up mode,
Condition.
The control device that the cooler compressor that above-described embodiment provides starts, by determining the condition of compressor start,
Under conditions of being easy to start, using low current closed-loop start-up, compressor start vibration and noise, and more supernumerary segment can be reduced
Energy；Under conditions of being not easy startup, mode is pulled to start using open loop, it can be ensured that compressor reliably starts, and effectively keeps away
Exempt from compressor start failure.
It should be noted that in this embodiment, preset period of time t0Can according to after being shut down from air-conditioning system to system pressure
Power reaches the time of balance to determine.Since system pressure is big at air-conditioning system stop moment compressor exhaust pipe, muffler goes out
System pressure is small, and refrigerant is formed into a loop inside compressor and inside copper pipe automatically achieves system pressure balance.System pressure is flat
Starting load is small after weighing apparatus, it is not easy to step-out, that is to say, that restarts when system pressure is close to balance and is easy for.And it is uneven
When system pressure be easy to start step-out or overcurrent greatly to cause to start and fail.So preset period of time t0It can be 5 minutes, or be more than
It 5 minutes can also.
High temperature threshold value THIt can be determined according to air-conditioning system pressure.It can make air-conditioning system pressure since outdoor temperature is excessively high
Greatly, starting load is big, and being easy step-out or overcurrent causes to start failure, so high temperature threshold value THValue range can be 40 DEG C-
50 DEG C, 45 DEG C are selected under normal conditions.
Low temperature predetermined threshold value can be determined according to the viscosity of the refrigeration oil inside compressor.Due to the relatively low meeting of outdoor temperature
The refrigeration oil inside compressor is set to be in the state of cooling, the big friction of viscosity is big, and starting load is big, and being easy step-out or overcurrent causes to open
Dynamic failure.Low temperature threshold TLValue range can be -5 DEG C -0 DEG C, under normal conditions select 0 DEG C.
Optionally, as another embodiment of the present invention, current second compression machine start-up mode is that open loop pulls start-up mode
When, as shown in figure 8, determining module 630 specifically includes：4th judging unit 635, the 5th judging unit 636 and second determine single
Member 637.Wherein,
4th judging unit 635 is for judging whether the postboost duration t of previous compressor is more than preset period of time
t0, obtain the first judging result.5th judging unit 636 is for judging whether outdoor environment temperature T is less than high temperature threshold value THAnd it is big
In low temperature threshold TL, obtain the second judging result.Second determination unit 637 be used to be obtained according to the 4th judging unit 635 the
The second judging result that one judging result and the 5th judging unit 636 obtain determines and works as second compression machine start-up mode.
In this embodiment, the second determination unit 637 is specifically used for, when t is more than t0, T be more than TLAnd it is less than THWhen, it determines
When second compression machine start-up mode is closed-loop start-up pattern.Then control module 640 is specifically used for control compressor according to the second determination
The closed-loop start-up pattern that unit 637 determines starts.Control module 640 can specifically include：Detection unit and control unit.Its
In, detection unit is used to detect the position of compressor drum.Control unit is detected for controlling compressor drum from detection unit
Position start running.
Alternatively, the second determination unit 637 is specifically used for, when meeting following three conditions for the moment, i.e.,：T is less than or equal to
t0, T be less than or equal to TL, T be greater than or equal to TH, determine when second compression machine start-up mode is that open loop pulls start-up mode.Then control
Module 640 is specifically used for control compressor and pulls start-up mode to start according to the open loop that the second determination unit 637 determines.Control mould
Block 640 can be specifically used for：DC excitation torque is applied to compressor, control compressor speed open loop gives electromagnetic torque, pressure
After contracting machine open loop running speed reaches certain rotating speed, closed-loop control is switched to by opened loop control, control compressor is under closed loop mode
Operation.
The control device that the cooler compressor that above-described embodiment provides starts, by determining the condition of compressor start,
Under conditions of being easy to start, using low current closed-loop start-up, compressor start vibration and noise, and more supernumerary segment can be reduced
Energy；Under conditions of being not easy startup, mode is pulled to start using open loop, it can be ensured that compressor reliably starts, and effectively keeps away
Exempt from compressor start failure.
Optionally, as another embodiment of the present invention, as shown in figure 9, control device 900 includes：Judgment module 910,
Processing module 920, determining module 930 and control module 940 and receiving module 960 and detection module 970.Wherein, mould is received
Block 960 is used to receive the instruction for starting compressor.Detection module 970 is used for when receiving the instruction for starting compressor, detection
The rotating speed of compressor drum.The rotating speed for the compressor drum that judgment module 910 is used to be detected according to detection module 970, judges to press
Whether contracting machine is in halted state.
It should be understood that in this embodiment, processing module 920, determining module 930 and control module 940 respectively in Fig. 6
Processing module 620, determining module 630 and control module 640 are similar, and succinct for description, details are not described herein.
In addition, the terms "and/or", only a kind of incidence relation of description affiliated partner, indicates may exist
Three kinds of relationships, for example, A and/or B, can indicate：Individualism A exists simultaneously A and B, these three situations of individualism B.Separately
Outside, character "/" herein, it is a kind of relationship of "or" to typically represent forward-backward correlation object.
Those of ordinary skill in the art may realize that lists described in conjunction with the examples disclosed in the embodiments of the present disclosure
Member and algorithm steps, can be realized with electronic hardware, computer software, or a combination of the two, in order to clearly demonstrate hardware
With the interchangeability of software, each exemplary composition and step are generally described according to function in the above description.This
A little functions are implemented in hardware or software actually, depend on the specific application and design constraint of technical solution.Specially
Industry technical staff can use different methods to achieve the described function each specific application, but this realization is not
It is considered as beyond the scope of this invention.
It is apparent to those skilled in the art that for convenience of description and succinctly, foregoing description is
The specific work process of system, device and unit, can refer to corresponding processes in the foregoing method embodiment, details are not described herein.
In several embodiments provided herein, it should be understood that disclosed systems, devices and methods, it can be with
It realizes by another way.For example, the apparatus embodiments described above are merely exemplary, for example, the division of unit,
Only a kind of division of logic function, formula that in actual implementation, there may be another division manner, such as multiple units or component can be with
In conjunction with or be desirably integrated into another system, or some features can be ignored or not executed.
The unit illustrated as separating component may or may not be physically separated, and be shown as unit
Component may or may not be physical unit, you can be located at a place, or may be distributed over multiple networks
On unit.Some or all of unit therein can be selected according to the actual needs to realize the mesh of the embodiment of the present invention
's.
In addition, each functional unit in each embodiment of the present invention can be integrated in a processing unit, it can also
It is that each unit physically exists alone, can also be during two or more units are integrated in one unit.It is above-mentioned integrated
The form that hardware had both may be used in unit is realized, can also be realized in the form of SFU software functional unit.
It, can if integrated unit is realized in the form of SFU software functional unit and when sold or used as an independent product
To be stored in a computer read/write memory medium.Based on this understanding, technical scheme of the present invention substantially or
Say that all or part of the part that contributes to existing technology or the technical solution can embody in the form of software products
Out, which is stored in a storage medium, including some instructions are used so that a computer equipment
(can be personal computer, server or the network equipment etc.) executes all or part of each embodiment method of the present invention
Step.And storage medium above-mentioned includes：It is USB flash disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random
Access various Jie that can store program code such as memory (RAM, Random Access Memory), magnetic disc or CD
Matter.
More than, specific implementation mode only of the invention, but scope of protection of the present invention is not limited thereto, and it is any to be familiar with
Those skilled in the art in the technical scope disclosed by the present invention, can readily occur in various equivalent modifications or substitutions,
These modifications or substitutions should be covered by the protection scope of the present invention.Therefore, protection scope of the present invention should be wanted with right
Subject to the protection domain asked.
Claims (12)
1. the control method that a kind of cooler compressor starts, which is characterized in that include the following steps：
Step 1, the rotating speed according to compressor drum, judge whether compressor is in halted state；
If step 2, the compressor are in halted state, air-conditioning state is detected, and obtains previous compressor start pattern, institute
Stating air-conditioning state includes：The outdoor environment temperature T and postboost duration t of previous compressor；
Step 3, according to the air-conditioning state and the previous compressor start pattern, determine and work as second compression machine start-up mode；
Step 4, the control compressor start according to when second compression machine start-up mode；
Step 5, after the compressor according to after second compression machine start-up mode starts, control the compressor according to predetermined speed
Operation.
2. control method according to claim 1, which is characterized in that the previous compressor start pattern is closed-loop start-up
Pattern, step 3 specifically include：
Step 3.1 judges whether the postboost duration t of previous compressor is more than preset period of time t0, obtain the first judgement knot
Fruit；
Step 3.2 judges whether outdoor environment temperature T is less than high temperature threshold value THAnd it is more than low temperature threshold TL, obtain the second judgement knot
Fruit；
Step 3.3 judges whether previous compressor is started successfully with closed-loop start-up pattern, obtains third judging result；
Step 3.4, according to first judging result, second judging result and the third judging result, determine when time
Compressor start pattern.
3. control method according to claim 2, which is characterized in that step 3.4 is specially：
When first judging result is that t is more than t0, second judging result be that T is more than TLAnd it is less than TH, and the third is sentenced
When disconnected result is that previous compressor is started successfully with closed-loop start-up pattern, determine when second compression machine start-up mode is closed-loop start-up mould
Formula.
4. control method according to claim 2, which is characterized in that step 3.4 is specially：
When first judging result is that t is less than or equal to t0When, it determines when second compression machine start-up mode is that open loop pulls startup mould
Formula；Or,
Second judging result is that T is less than or equal to TLWhen, it determines when second compression machine start-up mode is that open loop pulls startup mould
Formula；Or,
Second judging result is that T is greater than or equal to THWhen, it determines when second compression machine start-up mode is that open loop pulls startup mould
Formula；Or,
When the third judging result is that previous compressor starts failure with closed-loop start-up pattern, determine when second compression machine starts mould
Formula is that open loop pulls start-up mode.
5. control method according to claim 1, which is characterized in that the previous compressor start pattern pulls for open loop
Start-up mode, step 3 specifically include：
Step 3.5 judges whether the postboost duration t of previous compressor is more than preset period of time t0, obtain the first judgement knot
Fruit；
Step 3.6 judges whether outdoor environment temperature T is less than high temperature threshold value THAnd it is more than low temperature threshold TL, obtain the second judgement knot
Fruit；
Step 3.7, according to first judging result and second judging result, determine and work as second compression machine start-up mode.
6. control method according to claim 5, which is characterized in that step 3.7 is specially：
When first judging result is that t is more than t0, second judging result be that T is more than TLAnd it is less than THWhen, it determines when time pressure
Contracting machine start-up mode is closed-loop start-up pattern.
7. the control device that a kind of cooler compressor starts, which is characterized in that including：
Judgment module judges whether compressor is in halted state for the rotating speed according to compressor drum；
Processing module, for when the judgment module judges that the compressor is in halted state, detecting air-conditioning state, and
Previous compressor start pattern is obtained, the air-conditioning state includes：Outdoor environment temperature T and previous compressor are postboost lasting
Time period t；
Determining module, the air-conditioning state for being obtained according to the processing module and the previous compressor start pattern,
It determines and works as second compression machine start-up mode；
Control module starts for controlling the compressor according to the second compression machine start-up mode of working as that the determining module determines,
And it controls the compressor according to after second compression machine start-up mode starts in the compressor and is run according to predetermined speed.
8. control device according to claim 7, which is characterized in that the previous compressor start pattern is closed-loop start-up
Pattern, the determining module specifically include：
First judging unit, for judging whether the postboost duration t of previous compressor is more than preset period of time t0, obtain
First judging result；
Second judgment unit, for judging whether outdoor environment temperature T is less than high temperature threshold value THAnd it is more than low temperature threshold TL, obtain
Second judging result；
Third judging unit obtains third and judges knot for judging whether previous compressor is started successfully with closed-loop start-up pattern
Fruit；
First determination unit is used for according to first judging result, second judging result and the third judging result,
It determines and works as second compression machine start-up mode.
9. control device according to claim 8, which is characterized in that first determination unit is specifically used for, when described
First judging result is that t is more than t0, second judging result be that T is more than TLAnd it is less than TH, and before the third judging result is
When second compression machine is started successfully with closed-loop start-up pattern, determine when second compression machine start-up mode is closed-loop start-up pattern.
10. control device according to claim 8, which is characterized in that first determination unit is specifically used for, when described
First judging result is that t is less than or equal to t0When, it determines when second compression machine start-up mode is that open loop pulls start-up mode；Or,
Second judging result is that T is less than or equal to TLWhen, it determines when second compression machine start-up mode is that open loop pulls startup mould
Formula；Or,
Second judging result is that T is greater than or equal to THWhen, it determines when second compression machine start-up mode is that open loop pulls startup mould
Formula；Or,
When the third judging result is that previous compressor starts failure with closed-loop start-up pattern, determine when second compression machine starts mould
Formula is that open loop pulls start-up mode.
11. control device according to claim 7, which is characterized in that the previous compressor start pattern is drawn for open loop
Dynamic start-up mode, the determining module specifically include：
4th judging unit, for judging whether the postboost duration t of previous compressor is more than preset period of time t0, obtain
First judging result；
5th judging unit, for judging whether outdoor environment temperature T is less than high temperature threshold value THAnd it is more than low temperature threshold TL, obtain
Second judging result；
Second determination unit, for according to first judging result and second judging result, determining when second compression machine opens
Dynamic model formula.
12. control device according to claim 11, which is characterized in that second determination unit is specifically used for, and works as institute
It is that t is more than t to state the first judging result0, second judging result be that T is more than TLAnd it is less than THWhen, it determines when second compression machine starts
Pattern is closed-loop start-up pattern.
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| CN109282433A (en) * | 2018-09-11 | 2019-01-29 | 广东美的暖通设备有限公司 | Air conditioner and its control method and control device |
| CN109737566B (en) * | 2018-12-29 | 2021-09-21 | 青岛海尔空调电子有限公司 | Air conditioner and control method thereof |
| JP7319115B2 (en) * | 2019-07-09 | 2023-08-01 | シャープ株式会社 | air conditioner |
| CN110332670A (en) * | 2019-07-16 | 2019-10-15 | 珠海格力电器股份有限公司 | Compressor control method and control device and coolant system |
| US11668506B2 (en) | 2021-08-05 | 2023-06-06 | Haier Us Appliance Solutions, Inc. | System and method for operating a variable speed compressor of an air conditioner unit |
| CN114704942A (en) * | 2022-04-27 | 2022-07-05 | 杭州益川电子有限公司 | Method for starting variable frequency air conditioner compressor and compensating low frequency torque |
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