CN104566763B - Control method, control device and the air-conditioning system of air-conditioning system - Google Patents
Control method, control device and the air-conditioning system of air-conditioning system Download PDFInfo
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- CN104566763B CN104566763B CN201310477157.9A CN201310477157A CN104566763B CN 104566763 B CN104566763 B CN 104566763B CN 201310477157 A CN201310477157 A CN 201310477157A CN 104566763 B CN104566763 B CN 104566763B
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- 238000004378 air conditioning Methods 0.000 title claims abstract description 153
- 238000000034 method Methods 0.000 title claims abstract description 49
- 230000007613 environmental effect Effects 0.000 claims abstract description 42
- 238000001514 detection method Methods 0.000 claims abstract description 28
- 230000002159 abnormal effect Effects 0.000 claims description 34
- 238000013481 data capture Methods 0.000 claims description 11
- 238000010438 heat treatment Methods 0.000 claims description 6
- 238000012545 processing Methods 0.000 claims description 6
- 239000002918 waste heat Substances 0.000 claims description 4
- 230000004888 barrier function Effects 0.000 abstract description 5
- 230000015556 catabolic process Effects 0.000 abstract description 5
- 230000008569 process Effects 0.000 description 4
- 230000005611 electricity Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000006870 function Effects 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000007717 exclusion Effects 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000003507 refrigerant Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/89—Arrangement or mounting of control or safety devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Atmospheric Sciences (AREA)
- Physics & Mathematics (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Signal Processing (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention discloses the control method of air-conditioning system, including：When meeting preparatory condition, compressor is opened；In the range of default detection time：When current environmental temperature is located at the running current value of preset temperature range and air-conditioning system not less than current setting value, compressor shutdown is controlled；When current environmental temperature is not less than current setting value beyond preset temperature range and running current value, compressor shutdown is controlled, and is again started up after the very first time compressor；Afterwards, when running current value exceeds preset range not less than the pressure value of current setting value and the blast pipe of compressor, compressor shutdown is controlled.The control method of air-conditioning system disclosed by the invention, when barrier for some reason causes the running current of air-conditioning system excessive, control compressor shutdown is not then turned on compressor before fixing a breakdown, the phenomenon of compressor repeatedly starting and stopping is avoided the occurrence of, so as to reduce the probability of damage of compressor.The invention also discloses air-conditioning system and its control device.
Description
Technical field
The invention belongs to Air-condition system control technical field, more particularly to the control method of air-conditioning system, control device and
Air-conditioning system.
Background technology
With expanding economy, air-conditioning system applies more prevalent, and the reliable and stable operating of air-conditioning system has influence on production
That lives is normally carried out.
Existing air-conditioning system is obstructed due to freezing or heating loop when occurring dirty stifled abnormal and causes system high-low pressure
Poor more and more higher, in the case where height pressure difference increases but voltage is constant, compressor starts overload protection because of system power rise
And power off, air-conditioning system self-starting is will appear from after a period of time, and in the case where that can not remove dirty stifled thing in time, compressor will
Overload protection is again introduced into, so repeatedly.When the supply voltage of air-conditioning system is too low, can also occur compressor repeatedly starting and stopping
Problem.
Above-mentioned compressor repeatedly starting and stopping make compressor repeatedly under high current state run, motor coil caloric value increase and
There is the situation that coil short burns, the probability of damage rise of compressor.
The content of the invention
In view of this, it is an object of the invention to provide the control method of air-conditioning system, control device and air-conditioning system, with
Compressor repeatedly starting and stopping is prevented, the probability of damage of compressor is reduced.
To achieve the above object, the present invention provides following technical scheme：
The invention discloses a kind of control method of air-conditioning system, including：
When meeting preparatory condition, compressor is opened；
In the range of default detection time：
Current environmental temperature is obtained, compares the current environmental temperature that preset temperature range and detection are obtained；
When the current environmental temperature is located at the preset temperature range, the running current of the air-conditioning system is obtained
Value, when the running current value of air-conditioning system is not less than current setting value, controls the compressor shutdown；
When the current environmental temperature exceeds the preset temperature range, the running current of the air-conditioning system is obtained
Value, when the running current value is not less than the current setting value, controls the compressor shutdown, and after the very first time,
The compressor is controlled to be again started up；After the compressor is again turned on, if the running current value is not less than the electric current
Setting value, then obtain the pressure value of the blast pipe of the compressor, exceeds default in the pressure value of the blast pipe of the compressor
During scope, the compressor shutdown is controlled.
It is preferred that, in the above-mentioned methods, the preparatory condition is the pressure value and the pressure of air inlet pipe of the blast pipe of compressor
Difference between force value is less than first pressure threshold value.
It is preferred that, in the above-mentioned methods, in the case where the current environmental temperature is located at the preset temperature range,
Before controlling the compressor shutdown, in addition to：
Obtain the pressure value of the blast pipe of the compressor；
When the pressure value is not less than second pressure threshold value, determine that the air-conditioning system generating loop is abnormal；
When the pressure value is less than the second pressure threshold value, determine that abnormal electrical power supply occurs for the air-conditioning system.
It is preferred that, in the above-mentioned methods, in the case where the current environmental temperature exceeds the preset temperature range,
It is again turned on after compressor, performs before control institute compressor shutdown, in addition to：
When the pressure value is less than three pressure thresholds, determine that abnormal electrical power supply occurs for the air-conditioning system；
When the pressure value is more than four pressure thresholds, determine that the air-conditioning system generating loop is abnormal.
It is preferred that, in the above-mentioned methods, in addition to the step of control indoor set display Exception Type.
It is preferred that, in the above-mentioned methods, when the pressure value is less than three pressure thresholds, in addition to：Control indoor set
Shut down.
It is preferred that, in the above-mentioned methods, when air-conditioning system runs on heating mode, control indoor set, which is shut down, to be included：Control
The indoor set is made to shut down after waste heat has been blown.
The invention also discloses a kind of control device of air-conditioning system, including：
First control unit, for when meeting preparatory condition, opening compressor；
Temperature data acquisition unit, for obtaining current environmental temperature；
Current data acquiring unit, the running current value for obtaining the air-conditioning system；
Comparing unit, for comparing the current environmental temperature that preset temperature range and detection are obtained；
Second control unit, for being located at the preset temperature range, and air-conditioning system in the current environmental temperature
When running current value is not less than current setting value, the compressor shutdown is controlled；
3rd control unit, for exceeding the preset temperature range, and air-conditioning system in the current environmental temperature
When running current value is not less than current setting value, the compressor shutdown is controlled, and after the very first time, controls the compressor
It is again turned on；
Pressure at expulsion data capture unit, the pressure value of the blast pipe for obtaining the compressor；
4th control unit, for after the compressor is again turned on, when the air-conditioning system running current value not
When pressure value less than the current setting value, and the blast pipe of the compressor exceeds preset range, the compressor is controlled
Shut down.
It is preferred that, above-mentioned control device also includes admission pressure data capture unit, the admission pressure data acquisition list
Member is used for the pressure value for obtaining the air inlet pipe of the compressor；
First control unit includes first processing module, and the first processing module is used for the row in the compressor
When difference between the pressure value of tracheae and the pressure value of air inlet pipe is less than first pressure threshold value, compressor is opened it is determined that meeting
Preparatory condition.
It is preferred that, above-mentioned control device also includes Fisrt fault type determining units；
Second control unit determine the running current value of the air-conditioning system not less than the current setting value it
Afterwards, and before second control unit controls the compressor shutdown, the Fisrt fault type determining units are described
When the pressure value of blast pipe is not less than second pressure threshold value, determine that the air-conditioning system generating loop is abnormal, in the blast pipe
Pressure value when being less than the second pressure threshold value, determine that abnormal electrical power supply occurs for the air-conditioning system.
It is preferred that, above-mentioned control device also includes the second fault type determining unit；
Determine that the running current value of the air-conditioning system is not less than the current setting value in the 4th control unit, and
Before the 4th control unit controls the compressor shutdown, the second fault type determining unit is in the blast pipe
Pressure value when being less than three pressure thresholds, determine that abnormal electrical power supply occurs for the air-conditioning system, be more than the 4th in the pressure value
During pressure threshold, determine that the air-conditioning system generating loop is abnormal.
The invention also discloses a kind of air-conditioning system, including indoor set and outdoor unit, the outdoor unit include compressor and
Control device,
The control device is any one control device disclosed above；
The air-conditioning system also includes the first pressure detection means being arranged on the blast pipe of the compressor, is arranged at
Second pressure detection means in the air inlet pipe of the compressor, is arranged at the temperature-detecting device of outdoor, and for detecting
The current sensing means of the running current value of the air-conditioning system；
The control device respectively with the first pressure detection means, second pressure detection means, temperature-detecting device,
Current sensing means and compressor connection.
As can be seen here, beneficial effects of the present invention are：The control method of air-conditioning system disclosed by the invention, leads in barrier for some reason
When causing the running current of air-conditioning system excessive, control compressor shutdown is not then turned on compressor, it is to avoid occur before fixing a breakdown
The phenomenon of compressor repeatedly starting and stopping, so as to reduce the probability of damage of compressor.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the accompanying drawing used required in technology description to be briefly described, it should be apparent that, drawings in the following description are the present invention
Some embodiments, for those of ordinary skill in the art, on the premise of not paying creative work, can also basis
These accompanying drawings obtain other accompanying drawings.
Fig. 1 is a kind of flow chart of the control method of air-conditioning system disclosed by the invention；
Fig. 2 is the stream of the control method of air-conditioning system when current environmental temperature disclosed by the invention is in preset temperature range
Cheng Tu；
Fig. 3 is the stream of the control method of air-conditioning system when current environmental temperature disclosed by the invention exceeds preset temperature range
Cheng Tu；
Fig. 4 is a kind of structural representation of the control device of air-conditioning system disclosed by the invention；
Fig. 5 is the structural representation of the control device of another air-conditioning system disclosed by the invention.
Embodiment
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention
In accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is
A part of embodiment of the present invention, rather than whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art
The every other embodiment obtained under the premise of creative work is not made, belongs to the scope of protection of the invention.
The embodiment of the invention discloses a kind of control method of air-conditioning system, to prevent compressor repeatedly starting and stopping, reduction pressure
The probability of damage of contracting machine.
Referring to Fig. 1, Fig. 1 is a kind of flow chart of the control method of air-conditioning system disclosed by the invention.The control method bag
Include：
Step S11：When meeting preparatory condition, compressor is opened.
After air-conditioning system start operation, following operate is performed in preset time.In implementation, the preset time can be
5 minutes.Explanation is needed exist for, is only started shooting and run in air-conditioning system due to the control method of air-conditioning system disclosed by the invention
Performed in preset time afterwards, therefore after timing reaches the preset time, whole control process will be carried out no longer.
Step S12：Obtain current environmental temperature.
Current environmental temperature, the temperature-detecting device are detected while and air-conditioning by being arranged at the temperature-detecting device of outdoor
System is connected, and the control device of air-conditioning system can obtain current environmental temperature from temperature-detecting device.
Step S13：Compare current environmental temperature and preset temperature range, preset temperature range is in current environmental temperature
When, step S14 is performed, when current environmental temperature exceeds preset temperature range, step S16 is performed.
The preset temperature range both can be used for characterizing hot environment, can be used for characterizing low temperature environment.The default temperature
Degree scope is the interval being made up of second temperature and the first temperature.Wherein, the first temperature is higher than second temperature, and the first temperature is used for
Hot environment is characterized, second temperature is used to characterize low temperature environment, first temperature can be 30 DEG C, second temperature can be 10
DEG C, the present invention is without limiting.It is clear that, when environment temperature exceeds preset temperature range, probably due to heating is needed
Ask or drop heat demand and peak of power consumption occur.
Step S14：The running current value of air-conditioning system is obtained, when running current value is not less than current setting value, is performed
Step S15.
The running current value of air-conditioning system is detected using current sensing means, control device obtains empty from current sensing means
The running current value of adjusting system.When current environmental temperature is in preset temperature range, illustrate that air-conditioning system is not in high-temperature region
Domain and low-temperature region.If the running current value of air-conditioning system exceedes current setting value, it may be possible to because supply voltage is relatively low,
It is probably, because the loop of air-conditioning occurs in that dirty stifled, now to control compressor shutdown.
Step S15：Control compressor shutdown.
Step S16：The running current value of air-conditioning system is obtained, when running current value is not less than current setting value, control
Compressor shutdown, after the very first time, control compressor is again turned on.
Step S17：After compressor is again turned on, the running current value of air-conditioning system is obtained, if running current value is not small
In current setting value, step S18 is performed.
Step S18：Obtain the pressure value of the blast pipe of compressor.
Step S19：When the pressure value of blast pipe exceeds preset range, step S15 is performed.
First pressure detection means is provided with the blast pipe of compressor.Exceed preset temperature model in current environmental temperature
When enclosing, illustrate that air-conditioning system is in high-temperature area or low-temperature region.If the running current value of air-conditioning system is set more than electric current
Definite value, just control compressor shutdown, waits the very first time, if causing the too high failure quilt of running current value within the very first time
Exclude, air-conditioning system is continued to run with.If after compressor is again started up, still there is the problem of running current value is too high, judge
Within a preset range the pressure value of current exhaust pipe whether, if the pressure value of blast pipe is beyond preset range, compress by control
Machine is shut down, and compressor is not then turned on before failture evacuation, it is to avoid compressor repeatedly starting and stopping occur.
The control method of air-conditioning system disclosed by the invention, when barrier for some reason causes the running current of air-conditioning system excessive,
Compressor shutdown is controlled, compressor is not then turned on before fixing a breakdown, it is to avoid the phenomenon of compressor repeatedly starting and stopping occur, so as to drop
The probability of damage of low compressor.
In implementation, judge whether that the preparatory condition for opening compressor can be：The pressure value of the blast pipe of compressor and enter
Difference between the pressure value of tracheae is less than first pressure threshold value.During air-conditioning system start operation, indoor set starts running, compression
High-voltage value when first pressure detection means on the blast pipe of machine measures start is PH, the second pressure in the air inlet pipe of compressor
Low voltage value when force checking device measures start is PL, pressure difference △ P=PH-PLIf pressure difference is more than or equal to first pressure threshold value,
Then judge that the loop of air-conditioning system is abnormal, it may be possible to there are the exceptions such as somewhere block or valve is not switched on to cause cold-producing medium stream
Move not smooth etc., be now not turned on compressor.If system height pressure difference of the air-conditioning system after last time shutdown（Namely compress
Difference between the pressure value of the blast pipe of machine and the pressure value of air inlet pipe）It is excessive, after air-conditioning system start operation, if directly opening
Compressor is opened, can occur overload protection again.In the present invention, in the pressure value and the pressure value of air inlet pipe of the blast pipe of compressor
Between difference be less than first pressure threshold value when, just unlatching compressor.
In the control method of present invention air-conditioning system disclosed above, it can determine whether to cause the fortune of air-conditioning system
The reason for row electric current is more than or equal to current setting value.Illustrated with reference to Fig. 2 and Fig. 3.
Referring to Fig. 2, Fig. 2 is the control of air-conditioning system when current environmental temperature disclosed by the invention is in preset temperature range
The flow chart of method.The control method includes：
Step S21：Obtain the running current value of air-conditioning system.
Step S22：Compare the running current value got and current setting value, when running current value is less than current setting value
When, return and perform step S21, otherwise, perform step S23.
Step S23：Obtain the pressure value of the blast pipe of compressor.
Step S24：Compare the pressure value and second pressure threshold value of the blast pipe got, when the pressure value of blast pipe is not small
When second pressure threshold value, step S25 is performed, step S26 is otherwise performed.
Step S25：Determine that air-conditioning system generating loop is abnormal, perform step S27.
Step S26：Determine that abnormal electrical power supply occurs in air-conditioning system, perform step S27.
Step S27：Control compressor shutdown.
When current environmental temperature is in preset temperature range, if the running current value of air-conditioning system is more than or equal to electricity
Flow setting value, further to detect the pressure value of the blast pipe of current compressor, if now the pressure value of blast pipe be more than or
Person is equal to second pressure threshold value, it is determined that being that air-conditioning system there occurs that loop is abnormal, it may be possible to have and somewhere block or valve
It is not switched on waiting exception to cause refrigerant flowing not smooth.If now the pressure value of blast pipe is less than second pressure threshold value, explanation
The loop of air-conditioning system is normal, causes the reason for running current is excessive to be that the supply voltage of air-conditioning system is relatively low, therefore
Determine that abnormal electrical power supply occurs for air-conditioning system.
Preferably, it is determined that after the Exception Type of air-conditioning system, control indoor set display can also be set abnormal
The step of type, the step can be performed before control compressor shutdown, can also be carried out after control compressor shutdown.
Referring to Fig. 3, Fig. 3 is the control of air-conditioning system when current environmental temperature disclosed by the invention exceeds preset temperature range
The flow chart of method.The control method includes：
Step S31：Obtain the running current value of air-conditioning system.
Step S32：Compare the running current value got and current setting value, when running current value is less than current setting value
When, return and perform step S31, otherwise, perform step S33.
Step S33：Compressor shutdown is controlled, after the very first time, control compressor is again turned on.
After control compressor shutdown, the very first time is waited, compressor is again turned on afterwards.In the present invention first when
Between, can be 1 minute.
Step S34：Obtain the running current value of air-conditioning system.
Step S35：Judge whether the running current of air-conditioning is not less than pre-set current value, if so, then execution step S36, no
Then, return and perform step S34.
After compressor is again turned on, current sensing means continues to detect the running current value of air-conditioning system, control device
The running current value detected is obtained from current sensing means, if the running current value of air-conditioning system occurs being more than again or waited
Exceed preset range in the pressure value of the situation of current setting value, and the blast pipe of compressor, it is determined that cause this problem
Failure, and need close compressor.
Step S36：Obtain the pressure value of the blast pipe of compressor.
Step S37：Compare the pressure value and preset range of blast pipe, be less than the preset range in the pressure value of blast pipe
During lower limit, step S38 is performed, when the pressure value of blast pipe is more than the upper limit of the preset range, step S39 is performed.
The preset range is the interval being made up of the 3rd pressure threshold and the 4th pressure threshold, wherein the 3rd pressure threshold is small
In the 4th pressure value, the 3rd pressure threshold is the lower limit of the preset range, and the 4th pressure threshold is the upper limit of the preset range.
Step S38：Determine that abnormal electrical power supply occurs for air-conditioning system, perform step S310.
Step S39：Determine that air-conditioning system generating loop is abnormal, perform step S310.
Step S310：Control compressor shutdown.
When current environmental temperature exceeds preset temperature range, if the running current value of air-conditioning system is more than or equal to electricity
Setting value is flowed, compressor shutdown is controlled.After the very first time is waited, control compressor is again turned on, and is being again turned on compressor
Afterwards, if still there is the situation that running current value is more than or equal to current setting value, the row of current compressor is further detected
The pressure value of tracheae, if now the pressure value of blast pipe is more than the 4th pressure threshold, it is determined that being that air-conditioning system there occurs loop
It is abnormal, compressor shutdown is controlled, if now the pressure value of blast pipe is less than the 3rd pressure threshold, illustrates the loop of air-conditioning system
It is normal, causes the reason for running current is excessive to be that the supply voltage of air-conditioning system is relatively low, it is thus determined that air-conditioning system is sent out
Raw abnormal electrical power supply, equally controls compressor shutdown.
Preferably, it is determined that after the Exception Type of air-conditioning system, control indoor set display can also be set abnormal
The step of type, the step can be performed before control compressor shutdown, can also be performed after control compressor shutdown.
In addition, when current environmental temperature exceeds preset temperature range, if it is determined that cause the running current of air-conditioning system
The reason for value is more than or equal to current setting value is that supply voltage is relatively low, that is, when determining that abnormal electrical power supply occurs in air-conditioning system,
In addition to performing the operation of control compressor shutdown, indoor set can also be controlled to shut down, the step that control indoor set is shut down certainly
Suddenly can be after control compressor shutdown, can also be before control compressor shutdown.It should be noted that when the present invention is public
When the control method opened includes the step of control indoor set display Exception Type, the operation that control indoor set is shut down is in control room
Machine is performed after showing Exception Type.
In addition, if air-conditioning system runs on heating mode, then controlling indoor set to shut down includes：Control indoor set is blowing
Shut down after waste heat.
In the control method of present invention air-conditioning system disclosed above, the behaviour of the running current value of air-conditioning system is obtained
Make, can be carried out according to predetermined period.
The present invention control method of air-conditioning system disclosed above, invention additionally discloses the control of air-conditioning system dress accordingly
Put, to realize the control method.The control device can be arranged in the outdoor unit of air-conditioning system.
Referring to Fig. 4, Fig. 4 is the structural representation of the control device of air-conditioning system disclosed by the invention.The control device bag
Include the first control unit 1, temperature data acquisition unit 2, current data acquiring unit 3, comparing unit 4, the second control unit 5,
3rd control unit 6, the control unit 8 of pressure at expulsion data capture unit 7 and the 4th.
Wherein：
First control unit 1, for when meeting preparatory condition, opening compressor.
Temperature data acquisition unit 2, for obtaining current environmental temperature.Temperature data control unit 2 is from being arranged at outdoor
Temperature-detecting device obtain current environmental temperature.
Current data acquiring unit 3, the running current value for obtaining air-conditioning system.Current data acquiring unit 3 is from electricity
Flow detection device obtains the running current value of air-conditioning system, and the current sensing means is used for the running current for detecting air-conditioning system
Value.
Comparing unit 4, for comparing the current environmental temperature that preset temperature range and detection are obtained.
Second control unit 5, for being located at preset temperature range, and the running current of air-conditioning system in current environmental temperature
When value is not less than current setting value, compressor shutdown is controlled.
3rd control unit 6, for exceeding preset temperature range, and the running current of air-conditioning system in current environmental temperature
When value is not less than current setting value, compressor shutdown is controlled, and after the very first time, control compressor is again turned on.This first
Time can be 1 minute.
Pressure at expulsion data capture unit 7, the pressure value of the blast pipe for obtaining compressor.In the compressor of outdoor unit
Blast pipe on be provided with first pressure detection means, pressure at expulsion data capture unit 7 is obtained from the first pressure detection means
Take the pressure value of the blast pipe of compressor.
4th control unit 8, for after compressor is again turned on, when the running current value of air-conditioning system is not less than electric current
Setting value, and the blast pipe of compressor pressure value exceed preset range when, control compressor shutdown.
The control device of air-conditioning system disclosed by the invention, when barrier for some reason causes the running current of air-conditioning system excessive,
Compressor shutdown is controlled, compressor is not then turned on before fixing a breakdown, it is to avoid the phenomenon of compressor repeatedly starting and stopping occur, so as to drop
The probability of damage of low compressor.
In implementation, judge whether that the preparatory condition for opening compressor can be：The pressure value of the blast pipe of compressor and enter
Difference between the pressure value of tracheae is less than first pressure threshold value.Second pressure detection dress is installed in the air inlet pipe of compressor
Put, the pressure value of the air inlet pipe of compressor is detected by second pressure detection means.Accordingly, the control device of air-conditioning system is also wrapped
Admission pressure data capture unit is included, admission pressure data capture unit is used for the pressure value for obtaining the air inlet pipe of compressor.The
One control unit 1 also include first processing module, the first processing module be used for compressor blast pipe pressure value and enter
When difference between the pressure value of tracheae is less than first pressure threshold value, it is determined that meeting the preparatory condition for opening compressor.
In implementation, before control compressor shutdown, it can also determine whether to cause the running current of air-conditioning system big
In or equal to the reason for current setting value.
Referring to Fig. 5, Fig. 5 is the structural representation of the control device of another air-conditioning system disclosed by the invention.The control
Device includes the first control unit 1, temperature data acquisition unit 2, current data acquiring unit 3, comparing unit 4, second and controlled
Unit 5, the 3rd control unit 6, pressure at expulsion data capture unit 7, the 4th control unit 8, Fisrt fault type determining units 9
With the second fault type determining unit 10.The difference only just with control device shown in Fig. 4 is illustrated below.
After the second control unit 5 determines that the running current value of air-conditioning system is not less than current setting value, and second
Before the control compressor shutdown of control unit 5, Fisrt fault type determining units 9 are pressed in the pressure value of blast pipe not less than second
During force threshold, determine that air-conditioning system generating loop is abnormal, when the pressure value of blast pipe is less than second pressure threshold value, determine air-conditioning
Abnormal electrical power supply occurs for system.
Determine that the running current value of air-conditioning system is not less than current setting value in the 4th control unit 8, and in the 4th control
Before the control compressor shutdown of unit 8, the second fault type determining unit 10 is less than the 3rd pressure threshold in the pressure value of blast pipe
During value, determine that abnormal electrical power supply occurs for air-conditioning system, when pressure value is more than four pressure thresholds, determine air-conditioning system generating loop
It is abnormal.
In addition, when the second fault type determining unit 10 determines to occur abnormal electrical power supply, the 4th control unit 8 is pressed except control
Outside contracting machine is shut down, indoor set can also be controlled to shut down.If air-conditioning system runs on heating mode, the 4th control unit 8
Control indoor set shut down be：Control indoor set is shut down after waste heat has been blown.
The invention also discloses a kind of air-conditioning system, including indoor set and outdoor unit, wherein, outdoor unit include compressor and
Control device, the control device is the present invention any one control device disclosed above, also, the air-conditioning system is also including setting
The first pressure detection means being placed on the blast pipe of compressor, is arranged at the second pressure detection dress in the air inlet pipe of compressor
Put, be arranged at the temperature-detecting device of outdoor, and for the current sensing means for the running current value for detecting air-conditioning system.Control
Device processed respectively with first pressure detection means, second pressure detection means, temperature-detecting device, current sensing means and compression
Machine is connected.
Air-conditioning system disclosed by the invention, when barrier for some reason causes the running current of air-conditioning system excessive, in air-conditioning system
Control device control compressor shutdown, compressor is not then turned on before fixing a breakdown, it is to avoid compressor repeatedly starting and stopping occur
Phenomenon, so as to reduce the probability of damage of compressor.
Finally, in addition it is also necessary to explanation, herein, such as first and second or the like relational terms be used merely to by
One entity or operation make a distinction with another entity or operation, and not necessarily require or imply these entities or operation
Between there is any this actual relation or order.Moreover, term " comprising ", "comprising" or its any other variant meaning
Covering including for nonexcludability, so that process, method, article or equipment including a series of key elements not only include that
A little key elements, but also other key elements including being not expressly set out, or also include be this process, method, article or
The intrinsic key element of equipment.In the absence of more restrictions, the key element limited by sentence " including one ... ", not
Also there is other identical element in the process including the key element, method, article or equipment in exclusion.
The embodiment of each in this specification is described by the way of progressive, and what each embodiment was stressed is and other
Between the difference of embodiment, each embodiment identical similar portion mutually referring to.For device disclosed in embodiment
For, because it is corresponded to the method disclosed in Example, so description is fairly simple, related part is said referring to method part
It is bright.
Professional further appreciates that, with reference to the unit of each example of the embodiments described herein description
And algorithm steps, can be realized with electronic hardware, computer software or the combination of the two, in order to clearly demonstrate hardware and
The interchangeability of software, generally describes the composition and step of each example according to function in the above description.These
Function is performed with hardware or software mode actually, depending on the application-specific and design constraint of technical scheme.Specialty
Technical staff can realize described function to each specific application using distinct methods, but this realization should not
Think beyond the scope of this invention.
Directly it can be held with reference to the step of the method or algorithm that the embodiments described herein is described with hardware, processor
Capable software module, or the two combination are implemented.Software module can be placed in random access memory（RAM）, internal memory, read-only deposit
Reservoir（ROM）, electrically programmable ROM, electrically erasable ROM, register, hard disk, moveable magnetic disc, CD-ROM or technology
In any other form of storage medium well known in field.
The foregoing description of the disclosed embodiments, enables professional and technical personnel in the field to realize or using the present invention.
A variety of modifications to these embodiments will be apparent for those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, it is of the invention
The embodiments shown herein is not intended to be limited to, and is to fit to and principles disclosed herein and features of novelty phase one
The most wide scope caused.
Claims (12)
1. a kind of control method of air-conditioning system, it is characterised in that including：
When meeting preparatory condition, compressor is opened；
In the range of default detection time：
Current environmental temperature is obtained, compares the current environmental temperature that preset temperature range and detection are obtained；
When the current environmental temperature is located at the preset temperature range, the running current value of the air-conditioning system is obtained, when
When the running current value of air-conditioning system is not less than current setting value, the compressor shutdown is controlled；
When the current environmental temperature exceeds the preset temperature range, the running current value of the air-conditioning system is obtained, when
When the running current value is not less than the current setting value, the compressor shutdown is controlled, and after the very first time, controls institute
Compressor is stated to be again started up；After the compressor is again turned on, if the running current value is not less than the current setting value,
The pressure value of the blast pipe of the compressor is then obtained, when the pressure value of the blast pipe of the compressor exceeds preset range,
Control the compressor shutdown.
2. according to the method described in claim 1, it is characterised in that the preparatory condition is the pressure value of the blast pipe of compressor
Difference between the pressure value of air inlet pipe is less than first pressure threshold value.
3. according to the method described in claim 1, it is characterised in that be located at the preset temperature model in the current environmental temperature
In the case of enclosing, before the compressor shutdown is controlled, in addition to：
Obtain the pressure value of the blast pipe of the compressor；
When the pressure value is not less than second pressure threshold value, determine that the air-conditioning system generating loop is abnormal；
When the pressure value is less than the second pressure threshold value, determine that abnormal electrical power supply occurs for the air-conditioning system.
4. according to the method described in claim 1, it is characterised in that exceed the preset temperature model in the current environmental temperature
In the case of enclosing, after compressor is again turned on, perform before control institute compressor shutdown, in addition to：
When the pressure value is less than three pressure thresholds, determine that abnormal electrical power supply occurs for the air-conditioning system；
When the pressure value is more than four pressure thresholds, determine that the air-conditioning system generating loop is abnormal.
5. the method according to claim 3 or 4, it is characterised in that the step of Exception Type is also shown including control indoor set
Suddenly.
6. method according to claim 4, it is characterised in that when the pressure value is less than three pressure thresholds, also wrap
Include：Indoor set is controlled to shut down.
7. method according to claim 6, it is characterised in that when air-conditioning system runs on heating mode, in control room
Machine, which is shut down, to be included：The indoor set is controlled to be shut down after waste heat has been blown.
8. a kind of control device of air-conditioning system, it is characterised in that including：
First control unit, for when meeting preparatory condition, opening compressor；
Temperature data acquisition unit, for obtaining current environmental temperature；
Current data acquiring unit, the running current value for obtaining the air-conditioning system；
Comparing unit, for comparing the current environmental temperature that preset temperature range and detection are obtained；
Second control unit, for being located at the preset temperature range, and the operation of air-conditioning system in the current environmental temperature
When current value is not less than current setting value, the compressor shutdown is controlled；
3rd control unit, for exceeding the preset temperature range, and the operation of air-conditioning system in the current environmental temperature
When current value is not less than current setting value, the compressor shutdown is controlled, and after the very first time, controls the compressor again
Open；
Pressure at expulsion data capture unit, the pressure value of the blast pipe for obtaining the compressor；
4th control unit, for after the compressor is again turned on, when the running current value of the air-conditioning system is not less than
The current setting value, and the pressure value of the blast pipe of the compressor is when exceeding preset range, controls the compressor shutdown.
9. control device according to claim 8, it is characterised in that described also including admission pressure data capture unit
Admission pressure data capture unit is used for the pressure value for obtaining the air inlet pipe of the compressor；
First control unit includes first processing module, and the first processing module is used for the blast pipe in the compressor
Pressure value and air inlet pipe pressure value between difference when being less than first pressure threshold value, open the default of compressor it is determined that meeting
Condition.
10. control device according to claim 8, it is characterised in that also including Fisrt fault type determining units；
Second control unit determine the air-conditioning system running current value be not less than the current setting value after, and
Before second control unit controls the compressor shutdown, the Fisrt fault type determining units are in the blast pipe
Pressure value when being not less than second pressure threshold value, determine that the air-conditioning system generating loop is abnormal, in the pressure of the blast pipe
When value is less than the second pressure threshold value, determine that abnormal electrical power supply occurs for the air-conditioning system.
11. the control device according to claim 8,9 or 10, it is characterised in that also determined including the second fault type single
Member；
The running current value for determining the air-conditioning system in the 4th control unit is not less than the current setting value, and in institute
State before the 4th control unit controls the compressor shutdown, pressure of the second fault type determining unit in the blast pipe
When force value is less than three pressure thresholds, determines that abnormal electrical power supply occurs for the air-conditioning system, be more than the 4th pressure in the pressure value
During threshold value, determine that the air-conditioning system generating loop is abnormal.
12. a kind of air-conditioning system, including indoor set and outdoor unit, the outdoor unit include compressor and control device, its feature
It is：
The control device is the control device any one of claim 8 to 11；
The air-conditioning system also includes the first pressure detection means being arranged on the blast pipe of the compressor, is arranged at described
Second pressure detection means in the air inlet pipe of compressor, is arranged at the temperature-detecting device of outdoor, and described for detecting
The current sensing means of the running current value of air-conditioning system；
The control device respectively with the first pressure detection means, second pressure detection means, temperature-detecting device, electric current
Detection means and compressor connection.
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| CN201310477157.9A CN104566763B (en) | 2013-10-12 | 2013-10-12 | Control method, control device and the air-conditioning system of air-conditioning system |
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| CN201310477157.9A CN104566763B (en) | 2013-10-12 | 2013-10-12 | Control method, control device and the air-conditioning system of air-conditioning system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106882007A (en) * | 2015-12-16 | 2017-06-23 | 杭州三花研究院有限公司 | A kind of air-conditioning system, control device and its control method |
| CN105757908B (en) * | 2016-04-08 | 2018-09-04 | 广东美的制冷设备有限公司 | Air-conditioner control method and device |
| CN107144061B (en) * | 2017-06-20 | 2019-07-26 | 广东美的暖通设备有限公司 | Compressor cooling means, system and air-conditioning |
| CN108333981B (en) * | 2017-12-25 | 2019-10-18 | 珠海格力电器股份有限公司 | The halt control method and device of compressor |
| CN108591035B (en) * | 2018-04-28 | 2020-08-07 | 重庆长安汽车股份有限公司 | Compressor starting control method, device, equipment and readable storage medium |
| CN110173421A (en) * | 2019-04-22 | 2019-08-27 | 广东美博制冷设备有限公司 | A kind of method and device for overload protection of compressor |
| 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 |
| CN110595015B (en) * | 2019-09-25 | 2020-12-11 | 珠海格力电器股份有限公司 | Adjusting method and device of frequency conversion equipment |
| CN111076349B (en) * | 2019-12-24 | 2021-01-26 | 珠海格力电器股份有限公司 | Operation control method and device, storage medium and air conditioner |
| CN111637587B (en) * | 2020-05-28 | 2021-12-31 | 宁波奥克斯电气股份有限公司 | Control method and system for compressor overload protection and air conditioner |
| CN113587359B (en) * | 2021-07-23 | 2022-06-07 | 珠海格力电器股份有限公司 | Control method and device for valve cut-off protection, controller and air conditioner |
| CN114506356B (en) * | 2022-01-13 | 2023-05-23 | 中车青岛四方机车车辆股份有限公司 | Air conditioning system of railway vehicle and operation data processing method of air conditioning system |
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| JP2000055442A (en) * | 1998-08-04 | 2000-02-25 | Funai Electric Co Ltd | Air conditioner |
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| CN101144476A (en) * | 2006-09-15 | 2008-03-19 | 乐金电子(天津)电器有限公司 | Overloading protecting device and method for air-conditioner compressor |
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