CN106123417A - The control method that a kind of compressor of air conditioner starts and control device - Google Patents
The control method that a kind of compressor of air conditioner starts and control device Download PDFInfo
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- CN106123417A CN106123417A CN201610495302.XA CN201610495302A CN106123417A CN 106123417 A CN106123417 A CN 106123417A CN 201610495302 A CN201610495302 A CN 201610495302A CN 106123417 A CN106123417 A CN 106123417A
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Classifications
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- 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
- 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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The present invention relates to control method and control device that a kind of cooler compressor starts, control method includes: according to the rotating speed of compressor drum, it is judged that whether compressor is in halted state；If compressor is in halted state, then detects air-conditioning state, and obtain previous compressor start pattern；According to air-conditioning state and previous compressor start pattern, determine when second compression machine start-up mode；Control compressor to start according to when second compression machine start-up mode；Machine to be compressed, according to after second compression machine start-up mode starts, controls compressor and runs according to predetermined speed.Control method that the cooler compressor that the present invention provides starts and control device, can determine the startup method of compressor, can also reduce noise and energy consumption guaranteeing while compressor easily starts according to the virtual condition of air conditioning system.
Description
Technical field
The present invention relates to air-conditioner technical field, particularly relate to control method and control dress that a kind of compressor of air conditioner starts
Put.
Background technology
It is more energy-conservation, efficient that fixed frequency air conditioner compared by convertible frequency air-conditioner.The frequency-changeable compressor that convertible frequency air-conditioner room is used at present, its
Start control method and include the following four stage: (1) DC excitation positions；(2) open loop pulls；(3) open loop turns closed loop；(4) close
Ring controls.Pulling two stages at DC excitation and open loop, in order to prevent from starting unsuccessfully, starting current/moment is just greater than reality
Border starts the starting current/moment needed, but excessive starting current/moment can produce vibration and noise, affects user and relaxes
Adaptive, and energy consumption is bigger.
The startup method of the another kind of motor in converter industry is: detection motor rotor position, then closed loop starts, example
As: elevator controlling.The feature of this startup method is that starting current is little, noise is little, and relative energy-saving.
But due to air conditioning system pressure, to be affected change by indoor, outdoor temperature very big, and after compressor start due to
Compressor compresses coolant causes system pressure to change, and then makes compressor load also change, and system disturbance increases, badly
Environment utilizes said method make compressor use closed loop to start and be easily caused compressor start failure, the most above-mentioned startup method
It is not applied in air conditioning system.
Summary of the invention
The technical problem to be solved is for the deficiencies in the prior art, it is provided that a kind of compressor of air conditioner starts
Control method and control device.
The technical scheme is that the control method that a kind of cooler compressor starts,
Comprise the following steps:
Step 1, rotating speed according to compressor drum, it is judged that whether compressor is in halted state；
If the described compressor of step 2 is in halted state, then detects air-conditioning state, and obtain previous compressor start mould
Formula；
Step 3, according to described air-conditioning state and described previous compressor start pattern, determine when second compression machine start mould
Formula；
Step 4, control described compressor according to when second compression machine start-up mode start；
Step 5, until described compressor according to after second compression machine start-up mode starts, control described compressor according to predetermined
Speed is run.
The invention has the beneficial effects as follows: by being in air-conditioning state during halted state and previous compressor according to compressor
Start-up mode, determines when second compression machine start-up mode, controls compressor and starts according to when second compression machine start-up mode, and according in advance
Constant speed degree runs, such that it is able to determine the startup method of compressor according to the virtual condition of air conditioning system, is guaranteeing compressor displacement
Noise and energy consumption can also be reduced while easily starting.
On the basis of technique scheme, the present invention can also do following improvement.
Further, described air-conditioning state includes: outdoor environment temperature T and section of previous compressor postboost persistent period
t。
Further, described previous compressor start pattern is closed loop start-up mode, and step 3 specifically includes:
Step 3.1, judge that section t of previous compressor postboost persistent period is whether more than preset period of time t0, obtain first
Judged result；
Step 3.2, judge that outdoor environment temperature T is whether less than high temperature threshold value THAnd more than low temperature threshold TL, obtain second and sentence
Disconnected result；
Step 3.3, judge whether previous compressor starts successfully with closed loop start-up mode, obtain the 3rd judged result；
Step 3.4, according to described first judged result, described second judged result and described 3rd judged result, determine
When second compression machine start-up mode.
Further, step 3.4 is particularly as follows: working as described first judged result is that t is more than t0, described second judged result be
T is more than TLAnd less than TH, and described 3rd judged result is previous compressor when starting successfully with closed loop start-up mode, determines and works as
Second compression machine start-up mode is closed loop start-up mode.
Use above-mentioned further scheme to provide the benefit that: under the easy entry condition of above-mentioned compressor, use small area analysis
Closed loop starts, and can reduce compressor start vibration and noise, and more energy-conservation.
Further, step 3.4 is particularly as follows: working as described first judged result is that t is less than or equal to t0Time, determine when time pressure
Contracting machine start-up mode is that open loop pulls start-up mode；Or,
Described second judged result is that T is less than or equal to TLTime, determine when second compression machine start-up mode is that open loop pulls and opens
Dynamic model formula；Or,
Described second judged result is that T is more than or equal to THTime, determine when second compression machine start-up mode is that open loop pulls and opens
Dynamic model formula；Or,
Described 3rd judged result is previous compressor when starting unsuccessfully with closed loop start-up mode, determines when second compression machine opens
Dynamic model formula is that open loop pulls start-up mode.
Use above-mentioned further scheme to provide the benefit that: under above-mentioned compressor is not easy entry condition, use open loop
Pull mode to start, it can be ensured that compressor reliably starts, effectively avoid compressor start failure.
Further, described previous compressor start pattern is that open loop pulls start-up mode, and step 3 specifically includes:
Step 3.5, judge that section t of previous compressor postboost persistent period is whether more than preset period of time t0, obtain first
Judged result；
Step 3.6, judge that outdoor environment temperature T is whether less than high temperature threshold value THAnd more than low temperature threshold TL, obtain second and sentence
Disconnected result；
Step 3.7, according to described first judged result and described second judged result, determine when second compression machine start mould
Formula.
Further, step 3.7 is particularly as follows: working as described first judged result is that t is more than t0, described second judged result be
T is more than TLAnd less than THTime, determine when second compression machine start-up mode is closed loop start-up mode.
The another kind of technical scheme that the present invention solves above-mentioned technical problem is as follows: the control that a kind of cooler compressor starts
Device, including:
Judge module, for the rotating speed according to compressor drum, it is judged that whether compressor is in halted state；
Processing module, for when described judge module judges that described compressor is in halted state, detects air-conditioning shape
State, and obtain previous compressor start pattern；
Determine module, for the described air-conditioning state obtained according to described processing module and described previous compressor start mould
Formula, determines when second compression machine start-up mode；
Control module, for control described compressor according to described determine that module determines open when second compression machine start-up mode
Dynamic, and control described compressor according to predetermined speed operation.
The invention has the beneficial effects as follows: by being in air-conditioning state during halted state and previous compressor according to compressor
Start-up mode, determines when second compression machine start-up mode, controls compressor and starts according to when second compression machine start-up mode, and according in advance
Constant speed degree runs, such that it is able to determine the startup method of compressor according to the virtual condition of air conditioning system, is guaranteeing compressor displacement
Noise and energy consumption can also be reduced while easily starting.
Aspect that the present invention adds and advantage will part be given in the following description, part will be from explained below
In become obvious, or by the present invention practice recognize.
Accompanying drawing explanation
The indicative flowchart of the control method that a kind of cooler compressor that Fig. 1 provides for the embodiment of the present invention starts；
The schematic flow of the control method that a kind of cooler compressor that Fig. 2 provides for another embodiment of the present invention starts
Figure；
The schematic flow of the control method that a kind of cooler compressor that Fig. 3 provides for another embodiment of the present invention starts
Figure；
The schematic flow of the control method that a kind of cooler compressor that Fig. 4 provides for another embodiment of the present invention starts
Figure；
The schematic flow of the control method that a kind of cooler compressor that Fig. 5 provides for another embodiment of the present invention starts
Figure；
The schematic structure frame controlling device that a kind of cooler compressor that Fig. 6 provides for the embodiment of the present invention starts
Figure；
The schematic structure controlling device that a kind of cooler compressor that Fig. 7 provides for another embodiment of the present invention starts
Block diagram；
The schematic structure controlling device that a kind of cooler compressor that Fig. 8 provides for another embodiment of the present invention starts
Block diagram；
The schematic structure controlling device that a kind of cooler compressor that Fig. 9 provides for another embodiment of the present invention starts
Block diagram.
Detailed description of the invention
Being described principle and the feature of the present invention below in conjunction with accompanying drawing, example is served only for explaining the present invention, and
Non-for limiting the scope of the present invention.
Fig. 1 gives the schematic of the control method 100 of a kind of cooler compressor startup that the embodiment of the present invention provides
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, it is judged that whether compressor is in halted state.
If 120 compressors are in halted state, then detect air-conditioning state, and obtain previous compressor start pattern.
130, according to air-conditioning state and previous compressor start pattern, determine when second compression machine start-up mode.
140, control compressor to start according to when second compression machine start-up mode.
150, machine to be compressed is according to after second compression machine start-up mode starts, and controls compressor and runs according to predetermined speed.
The control method that the cooler compressor provided in above-described embodiment starts, by being in stopping shape according to compressor
Air-conditioning state during state and previous compressor start pattern, determine when second compression machine start-up mode, controls compressor according to when secondary
Compressor start pattern starts, and runs according to predetermined speed, such that it is able to determine compression according to the virtual condition of air conditioning system
The startup method of machine, can also reduce noise and energy consumption while compressor easily starts guaranteeing.
Such as: in the case of conditions permit, start in the closed loop mode, it is achieved less electric current/moment starts, and reaches quiet
Sound, energy-conservation effect, if but air conditioning system is in special adverse circumstances, then starts with open loop pull mode, it is achieved big electric current/
Moment reliably starts.
In this embodiment, air-conditioning state may include that outdoor environment temperature T and previous compressor postboost continue time
Between section t.
Alternatively, as one embodiment of the present of invention, when current second compression machine start-up mode is closed loop start-up mode, as
Shown in Fig. 2, step 130 specifically includes:
131, judge that whether section t of previous compressor postboost persistent period is more than preset period of time t0, obtain the first judgement
Result；
132, judge that whether outdoor environment temperature T is less than high temperature threshold value THAnd more than low temperature threshold TL, obtain the second judgement knot
Really；
133, judge whether previous compressor starts successfully with closed loop start-up mode, obtain the 3rd judged result；
134, according to the first judged result, the second judged result and the 3rd judged result, determine when second compression machine starts mould
Formula.
Concrete, in this embodiment, in step 134, when three below condition can meet simultaneously, it may be assumed that t is more than
t0, T is more than TLAnd less than TH, and previous compressor starts successfully with closed loop start-up mode, determines when second compression machine start-up mode is
Closed loop start-up mode.In step 140, control compressor to start according to the closed loop start-up mode determined in step 134.Step
140 specifically may include that (1), the position of detection compressor drum；(2), the position that compressor drum detects is controlled from step (1)
Put and start running.In this embodiment it is possible to by high frequency signal injection method or other can detect compressor drum position
Method, the position of detection compressor drum.
Under the easy entry condition of above-mentioned compressor, use small area analysis closed loop to start, compressor start vibration can be reduced
And noise, and more energy-conservation.
Or, in step 134, when meeting following four condition for the moment, it may be assumed that t is less than or equal to t0, T less than or etc.
In TL, T is more than or equal to TH, and previous compressor starts unsuccessfully with closed loop start-up mode, determines when second compression machine start-up mode
Start-up mode is pulled for open loop.In step 140, control compressor and pull start-up mode according to the open loop determined in step 134
Start.Step 140 specifically may include that 1), to compressor apply DC excitation torque, it is achieved compressor drum position；2), control
Compressor speed open loop processed gives electromagnetic torque, it is achieved compressor drum open-loop start-up and acceleration；3), compressor open loop operating speed
After degree reaches certain rotating speed, opened loop control transfer closed loop control to；4), control compressor to run under closed loop mode.
Under above-mentioned compressor is not easy entry condition, open loop is used to pull mode to start, it can be ensured that compressor is reliable
Start, effectively avoid compressor start failure.
In this embodiment, the entry condition of closed loop start-up mode is the condition that compressor of air conditioner easily starts, and open loop is drawn
Dynamic start-up mode entry condition be that air-conditioning compressor starts relatively difficult condition.
It should be noted that in this embodiment, preset period of time t0Can according to from air conditioning system shut down after to system pressure
The time that power reaches to balance determines.Owing at air conditioning system stop moment compressor exhaust pipe, system pressure is big, muffler goes out
System pressure is little, and coolant is internal at compressor and copper pipe is internally formed loop and automatically achieves system pressure balance.System pressure is put down
After weighing apparatus, starting load is little, it is not easy to step-out, say, that restarts when system pressure is close to balance and is easy for.And it is uneven
Time system pressure the most easily start step-out or cross conductance cause start unsuccessfully.So preset period of time t0Can be 5 minutes, or be more than
5 minutes can also.
High temperature threshold value THCan determine according to air conditioning system pressure.Owing to the too high meeting of outdoor temperature makes air conditioning system pressure
Greatly, starting load is big, and easy step-out or excessively conductance cause to start unsuccessfully, so high temperature threshold value THSpan can be 40 DEG C-
50 DEG C, select 45 DEG C under normal circumstances.
Low temperature predetermined threshold value can determine according to the freezing oil viscosity inside compressor.Due to the relatively low meeting of outdoor temperature
Making the refrigeration oil inside compressor be in the state of cooling, the big friction of viscosity is big, and starting load is big, and easy step-out or excessively conductance cause to open
Move unsuccessfully.Low temperature threshold TLSpan can be-5 DEG C-0 DEG C, under normal circumstances select 0 DEG C.Should be understood that in this embodiment
In, step 131, the execution sequence of 132,133 do not have precedence relationship, can perform simultaneously.
Alternatively, as another embodiment of the present invention, current second compression machine start-up mode is that open loop pulls start-up mode
Time, as it is shown on figure 3, step 130 specifically includes:
Step 135, judge that section t of previous compressor postboost persistent period is whether more than preset period of time t0, obtain first
Judged result；
Step 136, judge that outdoor environment temperature T is whether less than high temperature threshold value THAnd more than low temperature threshold TL, obtain second and sentence
Disconnected result；
Step 137, according to described first judged result and described second judged result, determine when second compression machine start mould
Formula.
Concrete, in this embodiment, in step 137, when t is more than t0, T is more than TLAnd less than THTime, determine when time pressure
Contracting machine start-up mode is closed loop start-up mode.In step 140, control compressor to start according to the closed loop determined in step 137
Pattern starts.Step 140 specifically can include (1) and (2) being outlined above.
Or, in step 137, when meeting three below condition for the moment, it may be assumed that t is less than or equal to t0, T less than or etc.
In TL, T is more than or equal to TH, determine when second compression machine start-up mode is that open loop pulls start-up mode.In step 140, pressure is controlled
Contracting machine starts according to the closed loop start-up mode determined in step 137.Step 140 specifically can include 1 be outlined above), 2),
3) and 4).
The control method that the cooler compressor provided in above-described embodiment starts, is determined by the bar of compressor start
Part, under conditions of easily starting, uses small area analysis closed loop to start, can reduce compressor start and vibrate and noise, and more
Energy-conservation；Under conditions of being not easy to start, open loop is used to pull mode to start, it can be ensured that compressor reliably starts, effectively
Avoid compressor start failure.
Alternatively, as another embodiment of the present invention, as shown in Figure 4, control method 400 includes:
460, the instruction of startup compressor is received.
470, the rotating speed of compressor drum is detected.
410, according to the rotating speed of compressor drum, it is judged that whether compressor is in halted state.
If, it may be assumed that compressor is in halted state, then perform step 420；If not, it may be assumed that compressor is in running status,
Then perform step 450.
420, detection air-conditioning state, and obtain previous compressor start pattern.
430, according to air-conditioning state and previous compressor start pattern, determine when second compression machine start-up mode.
440, control compressor to start according to when second compression machine start-up mode.
450, machine to be compressed is according to after second compression machine start-up mode starts, and controls compressor and runs according to predetermined speed.
It should be noted that in this embodiment, step 410-step 450 respectively with the step 110-step 150 in Fig. 1
Similar, succinct in order to describe, do not repeat them here.
Should be understood that in various embodiments of the present invention, the size of the sequence number of above-mentioned each process is not meant to perform suitable
The priority of sequence, the execution sequence of each process should determine with its function and internal logic, and should be to the enforcement of the embodiment of the present invention
Process constitutes any restriction.
Below in conjunction with Fig. 5, the technology of the control method that a kind of cooler compressor providing the embodiment of the present invention starts
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 of detection in step 510, it is judged that whether compressor is in halted state.If
It is then to perform step 530；If it is not, then perform step 590.
530, judge whether to receive the instruction starting compressor.If receiving, then perform step 540；If not receiving
Arrive, then terminate.
540, detection air-conditioning state, and obtain previous compressor start pattern.Wherein, air-conditioning state includes: outdoor environment
Temperature T and section t of previous compressor postboost persistent period.
551, judge that whether section t of previous compressor postboost persistent period is more than preset period of time t0.If judged result is t
Less than or equal to t0, then step 570 is performed.
552, judge that whether outdoor environment temperature T is less than high temperature threshold value THAnd more than low temperature threshold TL.If judged result is T
Less than or equal to TL, then step 570 is performed.If judged result is T is more than or equal to THTime, then perform step 570.
553, judge whether previous compressor start pattern is closed loop start-up mode.If not, it may be assumed that previous compressor start mould
Formula is that open loop pulls start-up mode, then perform step 560.If, it may be assumed that previous compressor start pattern is closed loop start-up mode,
Then perform step 554.
554, judge whether previous compressor starts successfully with closed loop start-up mode.If not, it may be assumed that previous compressor is with closed loop
Start-up mode starts unsuccessfully, then perform step 570.
560, it is that t is more than t when the judged result in step 5510, judged result in step 552 be that T is more than TLAnd be less than
TH, and the judged result in step 554 is previous compressor when starting successfully with closed loop start-up mode, determines when second compression machine opens
Dynamic model formula is closed loop start-up mode.Or, when the judged result in step 551 is that t is more than t0, judged result in step 552
For T more than TLAnd less than TH, and the judged result in step 553 is previous compressor when pulling start-up mode to start with open loop, really
Settled second compression machine start-up mode is closed loop start-up mode.
570, determine when second compression machine start-up mode is that open loop pulls start-up mode.
580, control compressor to start according to closed loop start-up mode.
585, controlling compressor pulls start-up mode to start according to open loop.
590, machine to be compressed starts according to the closed loop start-up mode in step 580, or draws according to the open loop in step 585
After dynamic start-up mode starts, control compressor and run according to predetermined speed.
The control method that the cooler compressor provided in above-described embodiment starts, by being in stopping shape according to compressor
Air-conditioning state during state and previous compressor start pattern, determine when second compression machine start-up mode, controls compressor according to when secondary
Compressor start pattern starts, and runs according to predetermined speed, such that it is able to determine compression according to the virtual condition of air conditioning system
The startup method of machine, can also reduce noise and energy consumption while compressor easily starts guaranteeing.
Above in association with Fig. 1 to Fig. 5, the controlling party that a kind of cooler compressor that describing the present invention in detail provides starts
Method, what a kind of cooler compressor provided the present invention below in conjunction with Fig. 6 to Fig. 9 started control device carries out detailed retouching
State.
Fig. 6 gives the schematic of the control device 600 of a kind of cooler compressor startup that the embodiment of the present invention provides
Structured flowchart.Control device 600 as shown in Figure 6 can be the control device of air-conditioner.Control device 600 to include: judge mould
Block 610, processing module 620, determine module 630 and control module 640.Wherein,
Judge module 610 is for the rotating speed according to compressor drum, it is judged that whether compressor is in halted state.Process mould
Block 620, for when judge module 610 judges that compressor is in halted state, detects air-conditioning state, and obtains front second compression
Machine start-up mode.Determine module 630 for the air-conditioning state obtained according to processing module 620 and previous compressor start pattern,
Determine when second compression machine start-up mode.Control module 640 is for controlling compressor according to determining that what module 630 determined works as second compression
Machine start-up mode starts, and at compressor according to after second compression machine start-up mode starts, controls compressor according to predetermined speed
Run.
In this embodiment, air-conditioning state may include that outdoor environment temperature T and previous compressor postboost continue time
Between section t.
Alternatively, in this embodiment, control module 640 is additionally operable to, when judgment model 610 judges that compressor is in fortune
During row state, control compressor and run according to predetermined speed.
Should be understood that in embodiments of the present invention, control device 600 according to embodiments of the present invention may correspond to according to this
The executive agent of the control method of bright embodiment, and control modules in device 600 above and other operation and/or
Function is respectively in order to realize the corresponding flow process of each method in Fig. 1 to Fig. 5, for sake of simplicity, do not repeat them here.
The control device that the cooler compressor that above-described embodiment provides starts, by being in halted state according to compressor
Time air-conditioning state and previous compressor start pattern, determine when second compression machine start-up mode, control compressor according to when time pressure
Contracting machine start-up mode starts, and runs according to predetermined speed, such that it is able to determine compressor according to the virtual condition of air conditioning system
Startup method, noise and energy consumption can also be reduced while compressor easily starts guaranteeing.
Such as: in the case of conditions permit, start in the closed loop mode, it is achieved less electric current/moment starts, and reaches quiet
Sound, energy-conservation effect, if but air conditioning system is in special adverse circumstances, and open loop pull mode the most starts, it is achieved big electric current/
Moment reliably starts.
Alternatively, as one embodiment of the present of invention, when current second compression machine start-up mode is closed loop start-up mode, as
Shown in Fig. 7, determine that module 630 specifically includes: first judging unit the 631, second judging unit the 632, the 3rd judging unit 633 and
First determines unit 634.Wherein,
First judging unit 631 is used for judging that whether section t of previous compressor postboost persistent period is more than preset period of time
t0, obtain the first judged result.Second judging unit 632 is used for judging that whether outdoor environment temperature T is less than high temperature threshold value THAnd it is big
In low temperature threshold TL, obtain the second judged result.3rd judging unit 633 is used for judging whether previous compressor starts with closed loop
Pattern starts successfully, obtains the 3rd judged result.
First determines that unit 634 is for the first judged result obtained according to the first judging unit 631, the second judging unit
The 3rd judged result that 632 the second judged results obtained and the 3rd judging unit 633 obtain, determines when second compression machine starts mould
Formula.
Concrete, in this embodiment, first determine unit 634 specifically for, when three below condition can meet simultaneously
Time, it may be assumed that t is more than t0, T is more than TLAnd less than TH, and previous compressor starts successfully with closed loop start-up mode, determines when time pressure
Contracting machine start-up mode is closed loop start-up mode.Then control module 640 determines unit 634 specifically for controlling compressor according to first
The closed loop start-up mode determined starts.Control module 640 can specifically include: detector unit and control unit.Wherein, detection is single
Unit is for detecting the position of compressor drum.Control unit is for controlling compressor drum from the beginning of the position that detector unit detects
Operating.In this embodiment, detector unit can pass through high frequency signal injection method or other can detect compressor drum position
Method, detection compressor drum position.
Or, first determine unit 634 specifically for, when meeting following four condition for the moment, it may be assumed that t is less than or equal to
t0, T is less than or equal to TL, T is more than or equal to TH, and previous compressor starts unsuccessfully with closed loop start-up mode, determines when time pressure
Contracting machine start-up mode is that open loop pulls start-up mode.Then control module 640 determines list specifically for controlling compressor according to first
The open loop that unit 634 determines pulls start-up mode to start.Control module 640 can be specifically for: compressor is applied DC excitation
Torque, controls compressor speed open loop and gives electromagnetic torque, after compressor open loop running speed reaches certain rotating speed, by open loop control
System transfers closed loop control to, controls compressor and runs under closed loop mode.Wherein, the entry condition of closed loop start-up mode is air-conditioning pressure
The condition that contracting machine easily starts, open loop pull start-up mode entry condition to be that air-conditioning compressor starts relatively difficult
Condition.
The control device that the cooler compressor that above-described embodiment provides starts, is determined by the condition of compressor start,
Under conditions of easily starting, use small area analysis closed loop to start, compressor start vibration and noise, and more supernumerary segment can be reduced
Energy；Under conditions of being not easy to start, open loop is used to pull mode to start, 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 from air conditioning system shut down after to system pressure
The time that power reaches to balance determines.Owing at air conditioning system stop moment compressor exhaust pipe, system pressure is big, muffler goes out
System pressure is little, and coolant is internal at compressor and copper pipe is internally formed loop and automatically achieves system pressure balance.System pressure is put down
After weighing apparatus, starting load is little, it is not easy to step-out, say, that restarts when system pressure is close to balance and is easy for.And it is uneven
Time system pressure the most easily start step-out or cross conductance cause start unsuccessfully.So preset period of time t0Can be 5 minutes, or be more than
5 minutes can also.
High temperature threshold value THCan determine according to air conditioning system pressure.Owing to the too high meeting of outdoor temperature makes air conditioning system pressure
Greatly, starting load is big, and easy step-out or excessively conductance cause to start unsuccessfully, so high temperature threshold value THSpan can be 40 DEG C-
50 DEG C, select 45 DEG C under normal circumstances.
Low temperature predetermined threshold value can determine according to the freezing oil viscosity inside compressor.Due to the relatively low meeting of outdoor temperature
Making the refrigeration oil inside compressor be in the state of cooling, the big friction of viscosity is big, and starting load is big, and easy step-out or excessively conductance cause to open
Move unsuccessfully.Low temperature threshold TLSpan can be-5 DEG C-0 DEG C, under normal circumstances select 0 DEG C.
Alternatively, as another embodiment of the present invention, current second compression machine start-up mode is that open loop pulls start-up mode
Time, as shown in Figure 8, determine that module 630 specifically includes: the 4th judging unit the 635, the 5th judging unit 636 and second determines list
Unit 637.Wherein,
4th judging unit 635 is used for judging that whether section t of previous compressor postboost persistent period is more than preset period of time
t0, obtain the first judged result.5th judging unit 636 is used for judging that whether outdoor environment temperature T is less than high temperature threshold value THAnd it is big
In low temperature threshold TL, obtain the second judged result.Second determine unit 637 for obtain according to the 4th judging unit 635
The second judged result that one judged result and the 5th judging unit 636 obtain, determines when second compression machine start-up mode.
In this embodiment, second determine unit 637 specifically for, when t is more than t0, T is more than TLAnd less than THTime, determine
When second compression machine start-up mode is closed loop start-up mode.Then control module 640 determines according to first specifically for controlling compressor
The closed loop start-up mode that unit 634 determines starts.Control module 640 can specifically include: detector unit and control unit.Its
In, detector unit is for detecting the position of compressor drum.Control unit is used for controlling compressor drum and detects from detector unit
Position start running.
Or, first determine unit 634 specifically for, when meeting three below condition for the moment, it may be assumed that t is less than or equal to
t0, T is less than or equal to TL, T is more than or equal to TH, determine when second compression machine start-up mode is that open loop pulls start-up mode.Then control
According to first, module 640 determines that the open loop that unit 634 determines pulls start-up mode to start specifically for controlling compressor.Control mould
Block 640 can be specifically for: compressor is applied DC excitation torque, controls compressor speed open loop and gives electromagnetic torque, pressure
After contracting machine open loop running speed reaches certain rotating speed, opened loop control transfer closed loop control to, control compressor under closed loop mode
Run.
The control device that the cooler compressor that above-described embodiment provides starts, is determined by the condition of compressor start,
Under conditions of easily starting, use small area analysis closed loop to start, compressor start vibration and noise, and more supernumerary segment can be reduced
Energy；Under conditions of being not easy to start, open loop is used to pull mode to start, it can be ensured that compressor reliably starts, and effectively keeps away
Exempt from compressor start failure.
Alternatively, as another embodiment of the present invention, include as it is shown in figure 9, control device 900: judge module 910,
Processing module 920, determine module 930 and control module 940, and receiver module 960 and detection module 970.Wherein, mould is received
Block 960 starts the instruction of compressor for receiving.Detection module 970, for when receiving the instruction starting compressor, detects
The rotating speed of compressor drum.Judge module 910 is for the rotating speed of the compressor drum according to detection module 970 detection, it is judged that pressure
Whether contracting machine is in halted state.
Should be understood that in this embodiment, processing module 920, determine module 930 and control module 940 respectively with in Fig. 6
Processing module 620, determine that module 630 and control module 640 are similar, succinct in order to describe, do not repeat them here.
It addition, the terms "and/or", a kind of incidence relation describing affiliated partner, expression can exist
Three kinds of relations, such as, A and/or B, can represent: individualism A, there is A and B, individualism B these three situation simultaneously.Separately
Outward, character "/" herein, typically represent the forward-backward correlation relation to liking a kind of "or".
Those of ordinary skill in the art are it is to be appreciated that combine the list of each example that the embodiments described herein describes
Unit and algorithm steps, it is possible to electronic hardware, computer software or the two be implemented in combination in, in order to clearly demonstrate hardware
With the interchangeability of software, the most generally describe composition and the step of each example according to function.This
A little functions perform with hardware or software mode actually, depend on application-specific and the design constraint of technical scheme.Specially
Industry technical staff can use different methods to realize described function to each specifically should being used for, but this realization is not
It is considered as beyond the scope of this invention.
Those skilled in the art is it can be understood that arrive, for convenience of description and succinctly, foregoing description be
System, device and the specific works process of unit, be referred to the corresponding process in preceding method embodiment, do not repeat them here.
In several embodiments provided herein, it should be understood that disclosed system, apparatus and method, permissible
Realize by another way.Such as, device embodiment described above is only schematically, such as, and the division of unit,
Being only a kind of logic function to divide, actual can have other dividing mode when realizing, and the most multiple unit or assembly are permissible
In conjunction with or be desirably integrated into another system, or some features can be ignored, or does not performs.
The unit illustrated as separating component can be or may not be physically separate, shows as unit
Parts can be or may not be physical location, i.e. may be located at a place, or can also be distributed to multiple network
On unit.Some or all of unit therein can be selected according to the actual needs to realize the mesh of embodiment of the present invention scheme
's.
It addition, each functional unit in each embodiment of the present invention can be integrated in a processing unit, it is also possible to
It is that unit is individually physically present, it is also possible to be that two or more unit are integrated in a unit.Above-mentioned integrated
Unit both can realize to use the form of hardware, it would however also be possible to employ the form of SFU software functional unit realizes.
If integrated unit is using the form realization of SFU software functional unit and as independent production marketing or use, can
To be stored in a computer read/write memory medium.Based on such understanding, technical scheme substantially or
Say the part that prior art is contributed, or completely or partially can the embodying with the form of software product of this technical scheme
Out, this computer software product is stored in a storage medium, including some instructions with so that a computer equipment
(can be personal computer, server, or the network equipment etc.) performs all or part of of each embodiment method of the present invention
Step.And aforesaid storage medium includes: USB flash disk, portable hard drive, read only memory (ROM, Read-Only Memory), random
Various Jie that can store program code such as access memorizer (RAM, Random Access Memory), magnetic disc or CD
Matter.
Above, the only detailed description of the invention of the present invention, but protection scope of the present invention is not limited thereto, and any familiar
Those skilled in the art, in the technical scope that the invention discloses, can readily occur in amendment or the replacement of various equivalence,
These amendments or replacement all should be contained within protection scope of the present invention.Therefore, protection scope of the present invention should be wanted with right
The protection domain asked is as the criterion.
Claims (14)
1. the control method that a cooler compressor starts, it is characterised in that comprise the following steps:
Step 1, rotating speed according to compressor drum, it is judged that whether compressor is in halted state；
If the described compressor of step 2 is in halted state, then detects air-conditioning state, and obtain previous compressor start pattern；
Step 3, according to described air-conditioning state and described previous compressor start pattern, determine when second compression machine start-up mode；
Step 4, control described compressor according to when second compression machine start-up mode start；
Step 5, until described compressor according to when second compression machine start-up mode start after, control described compressor according to predetermined speed
Run.
Control method the most according to claim 1, it is characterised in that described air-conditioning state includes: outdoor environment temperature T and
Section t of previous compressor postboost persistent period.
Control method the most according to claim 2, it is characterised in that described previous compressor start pattern is that closed loop starts
Pattern, step 3 specifically includes:
Step 3.1, judge that section t of previous compressor postboost persistent period is whether more than preset period of time t0, obtain the first judgement knot
Really；
Step 3.2, judge that outdoor environment temperature T is whether less than high temperature threshold value THAnd more than low temperature threshold TL, obtain the second judgement knot
Really；
Step 3.3, judge whether previous compressor starts successfully with closed loop start-up mode, obtain the 3rd judged result；
Step 3.4, according to described first judged result, described second judged result and described 3rd judged result, determine when time
Compressor start pattern.
Control method the most according to claim 3, it is characterised in that step 3.4 particularly as follows:
When described first judged result is that t is more than t0, described second judged result be that T is more than TLAnd less than TH, and the described 3rd sentence
Disconnected result is previous compressor when starting successfully with closed loop start-up mode, determines when second compression machine start-up mode is that closed loop starts mould
Formula.
Control method the most according to claim 3, it is characterised in that step 3.4 particularly as follows:
When described first judged result is that t is less than or equal to t0Time, determine when second compression machine start-up mode is that open loop pulls startup mould
Formula；Or,
Described second judged result is that T is less than or equal to TLTime, determine when second compression machine start-up mode is that open loop pulls startup mould
Formula；Or,
Described second judged result is that T is more than or equal to THTime, determine when second compression machine start-up mode is that open loop pulls startup mould
Formula；Or,
Described 3rd judged result is previous compressor when starting unsuccessfully with closed loop start-up mode, determines when second compression machine starts mould
Formula is that open loop pulls start-up mode.
Control method the most according to claim 2, it is characterised in that described previous compressor start pattern is that open loop pulls
Start-up mode, step 3 specifically includes:
Step 3.5, judge that section t of previous compressor postboost persistent period is whether more than preset period of time t0, obtain the first judgement knot
Really；
Step 3.6, judge that outdoor environment temperature T is whether less than high temperature threshold value THAnd more than low temperature threshold TL, obtain the second judgement knot
Really；
Step 3.7, according to described first judged result and described second judged result, determine when second compression machine start-up mode.
Control method the most according to claim 6, it is characterised in that step 3.7 particularly as follows:
When described first judged result is that t is more than t0, described second judged result be that T is more than TLAnd less than THTime, determine when time pressure
Contracting machine start-up mode is closed loop start-up mode.
8. the control device that a cooler compressor starts, it is characterised in that including:
Judge module, for the rotating speed according to compressor drum, it is judged that whether compressor is in halted state；
Processing module, for when described judge module judges that described compressor is in halted state, detects air-conditioning state, and
Obtain previous compressor start pattern；
Determine module, for the described air-conditioning state obtained according to described processing module and described previous compressor start pattern,
Determine when second compression machine start-up mode；
Control module, for control described compressor according to described determine that module determines start when second compression machine start-up mode,
And at described compressor according to after second compression machine start-up mode starts, control described compressor and run according to predetermined speed.
Control device the most according to claim 8, it is characterised in that described air-conditioning state includes: outdoor environment temperature T and
Section t of previous compressor postboost persistent period.
Control device the most according to claim 9, it is characterised in that described previous compressor start pattern is that closed loop opens
Dynamic model formula, described determines that module specifically includes:
First judging unit, is used for judging that whether section t of previous compressor postboost persistent period is more than preset period of time t0, obtain
First judged result；
Second judging unit, is used for judging that whether outdoor environment temperature T is less than high temperature threshold value THAnd more than low temperature threshold TL, obtain
Second judged result；
3rd judging unit, is used for judging whether previous compressor starts successfully with closed loop start-up mode, obtains the 3rd judgement knot
Really；
First determines unit, is used for according to described first judged result, described second judged result and described 3rd judged result,
Determine when second compression machine start-up mode.
11. control devices according to claim 10, it is characterised in that described first determine unit specifically for, work as institute
Stating the first judged result is that t is more than t0, described second judged result be that T is more than TLAnd less than TH, and described 3rd judged result is
When previous compressor starts successfully with closed loop start-up mode, determine when second compression machine start-up mode is closed loop start-up mode.
12. control devices according to claim 10, it is characterised in that described first determine unit specifically for, work as institute
Stating the first judged result is that t is less than or equal to t0Time, determine when second compression machine start-up mode is that open loop pulls start-up mode；Or,
Described second judged result is that T is less than or equal to TLTime, determine when second compression machine start-up mode is that open loop pulls startup mould
Formula；Or,
Described second judged result is that T is more than or equal to THTime, determine when second compression machine start-up mode is that open loop pulls startup mould
Formula；Or,
Described 3rd judged result is previous compressor when starting unsuccessfully with closed loop start-up mode, determines when second compression machine starts mould
Formula is that open loop pulls start-up mode.
13. control devices according to claim 9, it is characterised in that described previous compressor start pattern is that open loop is drawn
Dynamic start-up mode, described determines that module specifically includes:
4th judging unit, is used for judging that whether section t of previous compressor postboost persistent period is more than preset period of time t0, obtain
First judged result；
5th judging unit, is used for judging that whether outdoor environment temperature T is less than high temperature threshold value THAnd more than low temperature threshold TL, obtain
Second judged result；
Second determines unit, for according to described first judged result and described second judged result, determines when second compression machine opens
Dynamic model formula.
14. control devices according to claim 13, it is characterised in that described second determine unit specifically for, work as institute
Stating the first judged result is that t is more than t0, described second judged result be that T is more than TLAnd less than THTime, determine when second compression machine starts
Pattern is closed loop start-up mode.
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| 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 |
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| 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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| CN106123417B (en) | 2018-09-11 |
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