CN106288175B - Modular combination air-conditioning system and its compressor control device and method - Google Patents
Modular combination air-conditioning system and its compressor control device and method Download PDFInfo
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- CN106288175B CN106288175B CN201610662618.3A CN201610662618A CN106288175B CN 106288175 B CN106288175 B CN 106288175B CN 201610662618 A CN201610662618 A CN 201610662618A CN 106288175 B CN106288175 B CN 106288175B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- 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
-
- 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
- F25B1/00—Compression machines, plants or systems with non-reversible cycle
- F25B1/10—Compression machines, plants or systems with non-reversible cycle with multi-stage compression
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B49/00—Arrangement or mounting of control or safety devices
- F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
- F25B49/022—Compressor control arrangements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—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
-
- 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
- F24F11/65—Electronic processing for selecting an operating mode
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2140/00—Control inputs relating to system states
- F24F2140/20—Heat-exchange fluid temperature
-
- 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
- F25B2600/01—Timing
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2600/00—Control issues
- F25B2600/02—Compressor control
- F25B2600/025—Compressor control by controlling speed
- F25B2600/0251—Compressor control by controlling speed with on-off operation
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Signal Processing (AREA)
- Life Sciences & Earth Sciences (AREA)
- Atmospheric Sciences (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The present invention provides a kind of modular combination air-conditioning system and its compressor control device and method.According to the first aspect of the invention, a kind of compressor control device of modular combination air-conditioning system is provided, the air-conditioning system includes multiple compressors, and the control device includes: judging unit, timing unit and execution unit；The judging unit is for judging when the leaving water temperature of an air conditioner and water temperature setting value meet a predetermined relationship, it is the water temperature setting value and measured deviation and/or poor to judge whether the leaving water temperature of remaining air conditioner is equal to, the measured deviation is the measured deviation of the water temperature detection unit for detecting leaving water temperature of the air conditioner；Timing unit is used to add up runing time of the leaving water temperature equal to the compressor of the water temperature setting value and measured deviation and/or poor air conditioner；And execution unit is used to execute opening or closing for the compressor of air conditioner according to the judging result of judging unit and the timing result of timing unit.
Description
Technical field
The present invention relates to technical field of electric appliances more particularly to a kind of modular combination air-conditioning system and its compressor control to fill
It sets and method.
Background technique
In general, commercial place use light-duty commercial central air-conditioner group (light quotient's air-conditioner set), for example, by using multi-connected machine,
The modular combinations air-conditioning systems such as modularization air-to-water heat pump, modularization vortex cool water unit, since its sexual valence is relatively high
And it is increasingly received by the market.To ensure module cluster inner compressor, the service life is longer, needs each unit pressure inside control module group
Contracting machine, so that the runing time of each compressor is impartial.
Existing control program generally includes: (1) first opening and first stop, first stop first to open；(2) by compressor Cumulative Elapsed Time into
Row control, the long rear unlatching of Cumulative Elapsed Time or the first closing of Cumulative Elapsed Time length；(3) compression inside individual module
Machine needs just to open the compressor of next module after being all turned on, under the compressor of individual module is just closed after needing all to close
The compressor of one module.
However, the above control program has the disadvantage that
(1) first open and first stop, first stop first to open: the compressor operation a period of time first opened stops, and does not just have to always open later,
The compressor then opened is run always after opening.In this way, next time open when or such circular flow, lead to the pressure first opened
Contracting machine Cumulative Elapsed Time is relatively short very much, actually cannot achieve the purpose of compressor operating time equalization.
(2) it is controlled by compressor Cumulative Elapsed Time, the long rear unlatching of Cumulative Elapsed Time, or when accumulation operation
Between long first closing: the unlatching of compressor, to close all be to reach set temperature according to water temperature/environment temperature to carry out later, is not had
Exclude the factor influenced by sensor bias bring.Specifically, being all using water outlet for example, have 4 units inside module cluster
Temperature control, wherein the accuracy error there are two sensor is -0.5 DEG C, the schedule variance there are two sensor is 0 DEG C.If
Temperature stops compressor when reaching Ts-1 DEG C of set temperature, just will appear the accuracy error when temperature reaches Ts-1+0.5 DEG C be-
The compressor of the unit of 0.5 DEG C of sensor first stops, and actual temperature is without arriving Ts-1 DEG C.In this way, then sensor accuracy
The compressor for the module that deviation is 0 DEG C is longer than the compressor operating time for the module that sensor accuracy deviation is -0.5 DEG C, thus
Also the purpose for realizing compressor operating time equalization is not achieved.
(3) compressor inside individual module needs just to open the compressor of next module, individual module after being all turned on
Compressor need just to close the compressor of next module after all closing: equally also result in module and intermodule compression
Machine runing time is unequal.
Summary of the invention
In view of this, the object of the present invention is to provide a kind of modular combination air-conditioning system and its compressor control device and
Method.
According to the first aspect of the invention, a kind of compressor control device of air-conditioning system, the air-conditioning system packet are provided
Multiple compressors are included, the control device includes: judging unit, timing unit and execution unit；The judging unit
For judging to judge the water outlet of remaining air conditioner when the leaving water temperature of an air conditioner and water temperature setting value meet a predetermined relationship
It is the water temperature setting value and measured deviation and/or poor whether temperature is equal to, and the measured deviation is the air conditioner for examining
Measure the measured deviation of the water temperature detection unit of coolant-temperature gage；Timing unit is for adding up leaving water temperature equal to the water temperature setting value
With the runing time of the compressor of measured deviation and/or poor air conditioner；And execution unit is used for sentencing according to judging unit
Disconnected result and the timing result of timing unit execute opening or closing for the compressor of air conditioner.
Further, when the air-conditioning system is in refrigeration mode, when judging unit judges to go out described in an air conditioner
When coolant-temperature gage is less than the first water temperature setting value, judge the leaving water temperature of remaining air conditioner whether be equal to the first water temperature setting value with
The sum of the measured deviation；
The timing unit adds up leaving water temperature in remaining air conditioner and is equal to the first water temperature setting value and the measurement partially
The runing time of the compressor of the air conditioner of the sum of difference；And
The execution unit first closes leaving water temperature in remaining air conditioner and is equal to the first water temperature setting value and the measurement
The compressor of the sum of deviation, accumulated running time length air conditioner.
Further, when the air-conditioning system is in refrigeration mode, when judging unit judges to go out described in an air conditioner
Coolant-temperature gage be greater than one be higher than the first water temperature setting value the second water temperature setting value when, judge remaining air conditioner leaving water temperature whether
Equal to the difference of the second water temperature setting value and the measured deviation；
The timing unit adds up leaving water temperature in remaining air conditioner and is equal to the second water temperature setting value and the measurement partially
The runing time of the compressor of the air conditioner of the difference of difference；And
The execution unit first opens leaving water temperature in remaining air conditioner and is equal to the second water temperature setting value and the measurement
The difference of deviation, air conditioner that accumulated running time is short compressor.
Further, when the air-conditioning system is in refrigeration mode, when judging unit judges to go out described in an air conditioner
When coolant-temperature gage is more than or equal to the first water temperature setting value less than or equal to the second water temperature setting value, the execution unit maintains the air-conditioning
The current operating conditions of system.
Further, when the air-conditioning system is in heating mode, when judging unit judges to go out described in an air conditioner
Coolant-temperature gage be less than third water temperature setting value when, judge the leaving water temperature of remaining air conditioner whether be equal to the third water temperature setting value with
The sum of the measured deviation；
The timing unit adds up leaving water temperature in remaining air conditioner and is equal to the third water temperature setting value and the measurement partially
The runing time of the compressor of the air conditioner of the sum of difference；And
The execution unit first opens leaving water temperature in remaining air conditioner and is equal to the third water temperature setting value and the measurement
The sum of deviation, air conditioner that accumulated running time is short compressor.
Further, when the air-conditioning system is in heating mode, when judging unit judges to go out described in an air conditioner
Coolant-temperature gage be greater than one be higher than third water temperature setting value the 4th water temperature setting value when, judge remaining air conditioner leaving water temperature whether
Equal to the difference of the 4th water temperature setting value and the measured deviation；
The timing unit adds up leaving water temperature in remaining air conditioner and is equal to the 4th water temperature setting value and the measurement partially
The runing time of the compressor of the air conditioner of the difference of difference；And
The execution unit first closes leaving water temperature in remaining air conditioner and is equal to the 4th water temperature setting value and the measurement
The compressor of the difference of deviation, accumulated running time length air conditioner.
Further, when the air-conditioning system is in heating mode, when judging unit judges to go out described in an air conditioner
When coolant-temperature gage is more than or equal to third water temperature setting value less than or equal to the 4th water temperature setting value, the execution unit maintains the air-conditioning
The current operating conditions of system.
According to the second aspect of the invention, a kind of compressor control method of air-conditioning system, the air-conditioning system packet are provided
Include multiple compressors, the control method includes: water temperature judgment step, judgement when an air conditioner the leaving water temperature with
When water temperature setting value meets a predetermined relationship, judge whether the leaving water temperature of remaining air conditioner is equal to the water temperature setting value and surveys
Amount deviation and/or poor, the measured deviation is that the measurement of the water temperature detection unit for detecting leaving water temperature of air conditioner is inclined
Difference；Timed process adds up the compressor that leaving water temperature is equal to the water temperature setting value and measured deviation and/or poor air conditioner
Runing time；And step is executed, sky is executed according to the timing result of the judging result of water temperature judgment step and timed process
Adjust opening or closing for the compressor of device.
Further, when the air-conditioning system is in refrigeration mode, in water temperature judgment step, when judging an air conditioner
When the leaving water temperature is less than the first water temperature setting value, judge whether the leaving water temperature of remaining air conditioner is equal to first water temperature and sets
Definite value and the measured deviation and；
In the timed process, adds up leaving water temperature in remaining air conditioner and be equal to the first water temperature setting value and the measurement
The runing time of the compressor of the air conditioner of the sum of deviation；And
In the execution step, first closes leaving water temperature in remaining air conditioner and be equal to the first water temperature setting value and the survey
The compressor of air conditioner that measure the sum of deviation, that accumulated running time is long.
Further, when the air-conditioning system is in refrigeration mode, when judging an air conditioner in water temperature judgment step
When the leaving water temperature is greater than the second water temperature setting value that one is higher than the first water temperature setting value, judge remaining air conditioner goes out water temperature
Whether degree is equal to the difference of the second water temperature setting value and the measured deviation；
In the timed process, adds up leaving water temperature in remaining air conditioner and be equal to the second water temperature setting value and the measurement
The runing time of the compressor of the air conditioner of the difference of deviation；And
In the execution step, first opens leaving water temperature in remaining air conditioner and be equal to the second water temperature setting value and the survey
The compressor of air conditioner that measure the difference of deviation, that accumulated running time is short.
Further, when the air-conditioning system is in refrigeration mode, in water temperature judgment step, judge an air conditioner
When the leaving water temperature is more than or equal to the first water temperature setting value less than or equal to the second water temperature setting value, in the execution step, dimension
Hold the current operating conditions of the air-conditioning system.
Further, when the air-conditioning system is in heating mode, in water temperature judgment step, judge an air conditioner
When the leaving water temperature is less than third water temperature setting value, judge whether the leaving water temperature of remaining air conditioner is equal to the third water temperature and sets
Definite value and the measured deviation and；
In the timed process, adds up leaving water temperature in remaining air conditioner and be equal to the third water temperature setting value and the measurement
The runing time of the compressor of the air conditioner of the sum of deviation；And
In the execution step, first opens leaving water temperature in remaining air conditioner and be equal to the third water temperature setting value and the survey
The compressor of air conditioner that measure the sum of deviation, that accumulated running time is short.
Further, when the air-conditioning system is in heating mode, when judging an air conditioner in water temperature judgment step
When the leaving water temperature is greater than the 4th water temperature setting value that one is higher than third water temperature setting value, judge remaining air conditioner goes out water temperature
Whether degree is equal to the difference of the 4th water temperature setting value and the measured deviation；
In the timed process, adds up leaving water temperature in remaining air conditioner and be equal to the 4th water temperature setting value and the measurement
The runing time of the compressor of the air conditioner of the difference of deviation；And
The execution step first closes leaving water temperature in remaining air conditioner and is equal to the 4th water temperature setting value and the measurement
The compressor of the difference of deviation, accumulated running time length air conditioner.
Further, when the air-conditioning system is in heating mode, when judging an air conditioner in water temperature judgment step
When the leaving water temperature is more than or equal to third water temperature setting value less than or equal to the 4th water temperature setting value, the execution step is maintained
The current operating conditions of the air-conditioning system.
According to the third aspect of the invention we, a kind of air-conditioning system is provided, comprising: multiple compressors, outlet pipe, water outlet
Temperature detecting unit and the control device.
Above scheme according to the present invention, due to the deviation and cooler compressor according to leaving water temperature and its measurement
Accumulated running time control opening or closing for compressor.It is passed since the operation control to compressor considers temperature measurement
The accuracy error of sensor effectively eliminates bring mistake and executes movement, so that each compressor is tired in module and in module cluster
The plot operation time is impartial, extends the service life of entire engineering, reduces because respective compressive machine runing time is too long beyond use
The maintenance load and maintenance cost damaged after service life, so that not having to as far as possible to compressor in entire project life cycle
Carry out repair and replacement.
The above description is only an overview of the technical scheme of the present invention, in order to better understand the technical means of the present invention,
And can be implemented in accordance with the contents of the specification, the following is a detailed description of the preferred embodiments of the present invention and the accompanying drawings.
Detailed description of the invention
The attached drawing for constituting a part of the invention is used to provide further understanding of the present invention, schematic reality of the invention
It applies example and its explanation is used to explain the present invention, do not constitute improper limitations of the present invention.In the accompanying drawings:
Fig. 1 shows the structural schematic diagram of air-conditioning system according to one preferred embodiment of the present invention.
Fig. 2 is the structural block diagram according to the compressor control device of the air-conditioning system of one embodiment of the present invention.
Fig. 3 is the flow chart according to the compressor control method of the air-conditioning system of one embodiment of the present invention.
Fig. 4 is a preferably specific reality of the control method of the air-conditioning system according to the present invention in cooling mode
Apply the flow chart of example.
Fig. 5 is a preferably specific reality of the control method of the air-conditioning system according to the present invention in a heating mode
Apply the flow chart of example.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with the specific embodiment of the invention and
Technical solution of the present invention is clearly and completely described in corresponding attached drawing.Obviously, described embodiment is only the present invention one
Section Example, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art are not doing
Every other embodiment obtained under the premise of creative work out, shall fall within the protection scope of the present invention.
It is filled first according to Fig. 1,2 explanations modular combination air-conditioning system according to the present invention and its compressor control
It sets.Fig. 1 shows the structural schematic diagram of the modular combination air-conditioning system according to the present invention；Fig. 2 shows according to the present invention
The structural block diagram of the compressor control device of the modular combination air-conditioning system.
As shown in Figure 1, the modular combination air-conditioning system, for example, modular combination air-conditioning system, including N number of conduct
The air conditioner 4 and compressor control device 7 of module, N number of air conditioner constitute the module cluster (N >=2) of the modularization air-conditioning system.
It include outlet pipe 1, water temperature detection unit 2, compressor 3,5 and interlock circuit component 6 as each of module air conditioner
Deng.The water temperature detection unit 2 of each air conditioner is used to measure the leaving water temperature of the outlet pipe 1, and by, for example, letter
Number transmission line, is sent to the control device 7.The control device 7 is used for according to the leaving water temperature control received
The starting or closing of the compressor of each air conditioner.The situation that each air conditioner includes two compressors, but this hair are shown in Fig. 1
It is so obviously also not necessarily limited to this, the air conditioner may include more than one an appropriate number of compressor.
As shown in Fig. 2, the control device 7 includes judging unit 71, timing unit 72 and execution unit 73.It is described to sentence
Disconnected unit 71 judges remaining when the leaving water temperature of an air conditioner and water temperature setting value meet a predetermined relationship for judging
It is the water temperature setting value and measured deviation and/or poor whether the leaving water temperature of air conditioner is equal to, and the measured deviation is air conditioner
For detect leaving water temperature water temperature detection unit 2 measured deviation.Timing unit 72 is for adding up leaving water temperature equal to institute
State the runing time of the compressor of water temperature setting value and measured deviation and/or poor air conditioner.And execution unit 73 is used for root
It is judged that the judging result of unit 71 and the timing result of timing unit 72 execute opening or closing for the compressor of air conditioner.
Above scheme according to the present invention, due to the deviation and cooler compressor according to leaving water temperature and its measurement
Accumulated running time control opening or closing for compressor.It is passed since the operation control to compressor considers temperature measurement
The accuracy error of sensor effectively eliminates bring mistake and executes movement, so that each compressor is tired in module and in module cluster
The plot operation time is impartial, extends the service life of entire engineering, reduces because respective compressive machine runing time is too long beyond use
The maintenance load and maintenance cost damaged after service life, so that not having to as far as possible to compressor in entire project life cycle
Carry out repair and replacement.
In one embodiment, when the air-conditioning system is in refrigeration mode, when judging unit 71 judges an air conditioner
The leaving water temperature less than the first water temperature setting value when, judge whether the leaving water temperature of remaining air conditioner is equal to first water temperature
Setting value and the measured deviation and.The timing unit 72 adds up leaving water temperature in remaining air conditioner and is equal to first water temperature
Setting value and the measured deviation and air conditioner compressor runing time.The execution unit 73 is according to judging unit
71 judging result and the timing result of timing unit 72 execute opening or closing for the compressor of air conditioner.Specifically, described
Execution unit 73 first close leaving water temperature in remaining air conditioner be equal to the first water temperature setting value and the measured deviation and,
The compressor of the air conditioner of accumulated running time length.
When the air-conditioning system is in refrigeration mode, further, in another embodiment, when judging unit 71 is sentenced
When the leaving water temperature of a disconnected air conditioner is greater than the second water temperature setting value that one is higher than the first water temperature setting value, remaining sky is judged
Adjust whether the leaving water temperature of device is equal to the difference of the second water temperature setting value and the measured deviation.The timing unit 72 adds up it
Leaving water temperature is equal to the fortune of the compressor of the air conditioner of the difference of the second water temperature setting value and the measured deviation in remaining air conditioner
The row time.The execution unit 73 executes air conditioner according to the judging result of judging unit 71 and the timing result of timing unit 72
Compressor open or close.Specifically, the execution unit 73 first open in remaining air conditioner leaving water temperature be equal to this
The difference of two water temperature setting values and the measured deviation, air conditioner that accumulated running time is short compressor.
When the air-conditioning system is in refrigeration mode, further, In yet another embodiment, when judging unit 71 is sentenced
It is described to hold when the leaving water temperature of a disconnected air conditioner is more than or equal to the first water temperature setting value less than or equal to the second water temperature setting value
Row unit 73 maintains the current operating conditions of the air-conditioning system.
When the air-conditioning system is in heating mode, further, when judging unit 71 judges described in an air conditioner
When leaving water temperature is less than third water temperature setting value, judge whether the leaving water temperature of remaining air conditioner is equal to the third water temperature setting value
With the measured deviation and.The timing unit 72 adds up leaving water temperature in remaining air conditioner and is equal to the third water temperature setting value
With the measured deviation and air conditioner compressor runing time.The sentencing according to judging unit 71 of execution unit 73
Disconnected result and the timing result of timing unit 72 execute opening or closing for the compressor of air conditioner.Specifically, described to execute list
Member 73 first open leaving water temperature in remaining air conditioner be equal to the third water temperature setting value and the measured deviation and, accumulative fortune
The compressor of row time short air conditioner.
When the air-conditioning system is in heating mode, further, in another embodiment, when judging unit 71 is sentenced
When the leaving water temperature of a disconnected air conditioner is greater than the 4th water temperature setting value that one is higher than third water temperature setting value, remaining sky is judged
Adjust whether the leaving water temperature of device is equal to the difference of the 4th water temperature setting value and the measured deviation.The timing unit 72 adds up it
Leaving water temperature is equal to the fortune of the compressor of the air conditioner of the difference of the 4th water temperature setting value and the measured deviation in remaining air conditioner
The row time.The execution unit 73 executes air conditioner according to the judging result of judging unit 71 and the timing result of timing unit 72
Compressor open or close.Specifically, the execution unit 73 first close in remaining air conditioner leaving water temperature be equal to this
The compressor of the difference of four water temperature setting values and the measured deviation, accumulated running time length air conditioner.
When the air-conditioning system is in heating mode, further, In yet another embodiment, when judging unit 71 is sentenced
It is described to hold when the leaving water temperature of a disconnected air conditioner is more than or equal to third water temperature setting value less than or equal to the 4th water temperature setting value
Row unit 73 maintains the current operating conditions of the air-conditioning system.
Above in the explanation of the control device, the selection of the first to the 4th water temperature setting value (X1-X4) can basis,
Pre-set interval value can be changed to some fixed value, initial opening may be set to be some specific sections.The measurement is inclined
Difference can also be changed to some fixed value according to different sensors according to selection.X1-X4 is by following setting: X1:5~15,
X2:X2=X1+2, X3:35~60, X4:X3=X1+3, temperature sensor accuracy error value Δ T, such as Δ T=1.
Illustrate the compressor control method of air-conditioning system of the present invention below in conjunction with Fig. 3, Fig. 4 and Fig. 5.Fig. 3 is shown
The flow chart of the control method according to the present invention.Fig. 4 is the pressure of air-conditioning system in refrigeration mode according to the present invention
One specific embodiment of contracting machine control method.Fig. 5 is the compressor control of the air-conditioning system according to the present invention in heating mode
One specific embodiment of method processed.
As shown in figure 3, the control method 7 includes water temperature judgment step S1, timed process S2 and execution step S3.Institute
Water temperature judgment step S1 is stated, judges to sentence when the leaving water temperature of an air conditioner and water temperature setting value meet a predetermined relationship
Whether the leaving water temperature of remaining air conditioner of breaking is equal to the water temperature setting value and measured deviation and/or poor, and the measured deviation is
The measured deviation of the water temperature detection unit for detecting leaving water temperature of air conditioner.Timed process S2, accumulative leaving water temperature are equal to
The runing time of the compressor of the water temperature setting value and measured deviation and/or poor air conditioner.And execute step S3, root
Unlatching or the pass of the compressor of air conditioner are executed according to the judging result of water temperature judgment step S1 and the timing result of timed process S2
It closes.
In one embodiment, when the air-conditioning system is in refrigeration mode, in water temperature judgment step S1, when judging one
When the leaving water temperature of air conditioner is less than the first water temperature setting value, judge the leaving water temperature of remaining air conditioner whether be equal to this
One water temperature setting value and the measured deviation and.In the timed process S2, adds up leaving water temperature in remaining air conditioner and be equal to
The first water temperature setting value and the measured deviation and air conditioner compressor runing time.The execution step S3
In, the unlatching of the compressor of air conditioner is executed according to the judging result of water temperature judgment step S1 and the timing result of timed process S2
Or it closes.Specifically, it in the execution step S3, first closes leaving water temperature in remaining air conditioner and is equal to the first water temperature setting value
With the measured deviation and, the compressor of air conditioner that accumulated running time is long.
When the air-conditioning system is in refrigeration mode, further, in another embodiment, when water temperature judgment step
When judging that the leaving water temperature of an air conditioner is greater than the second water temperature setting value that one is higher than the first water temperature setting value in S1, judgement
Whether the leaving water temperature of remaining air conditioner is equal to the difference of the second water temperature setting value and the measured deviation.The timed process S2
In, add up the pressure that leaving water temperature in remaining air conditioner is equal to the second water temperature setting value with the air conditioner of the difference of the measured deviation
The runing time of contracting machine.In the execution step S3, according to the meter of the judging result of water temperature judgment step S1 and timed process S2
When result execute the compressor of air conditioner and open or close.Specifically, in the execution step S3, remaining air conditioner is first opened
The pressure of air conditioner that middle leaving water temperature is equal to the difference of the second water temperature setting value and the measured deviation, that accumulated running time is short
Contracting machine.
When the air-conditioning system is in refrigeration mode, further, In yet another embodiment, when water temperature judgment step
In S1, judge that the leaving water temperature of an air conditioner is more than or equal to the first water temperature setting value and is less than or equal to the second water temperature setting value
When, in the execution step S3, maintain the current operating conditions of the air-conditioning system.
When the air-conditioning system is in heating mode, further, in water temperature judgment step S1, an air conditioner is judged
The leaving water temperature be less than third water temperature setting value when, judge whether the leaving water temperature of remaining air conditioner is equal to the third water temperature
Setting value and the measured deviation and.In the timed process S2, adds up leaving water temperature in remaining air conditioner and be equal to the third
Water temperature setting value and the measured deviation and air conditioner compressor runing time.In the execution step S3, according to
The judging result of water temperature judgment step S1 and the timing result of timed process S2 execute opening or closing for the compressor of air conditioner.
Specifically, in the execution step S3, first open in remaining air conditioner leaving water temperature be equal to the third water temperature setting value with it is described
The sum of measured deviation, air conditioner that accumulated running time is short compressor.
When the air-conditioning system is in heating mode, further, in another embodiment, when water temperature judgment step
When judging that the leaving water temperature of an air conditioner is greater than the 4th water temperature setting value that one is higher than third water temperature setting value in S1, judgement
Whether the leaving water temperature of remaining air conditioner is equal to the difference of the 4th water temperature setting value and the measured deviation.The timed process S2
In, add up the pressure that leaving water temperature in remaining air conditioner is equal to the 4th water temperature setting value with the air conditioner of the difference of the measured deviation
The runing time of contracting machine.In the execution step S3, according to the meter of the judging result of water temperature judgment step S1 and timed process S2
When result execute the compressor of air conditioner and open or close.Specifically, the execution step S3, is first closed in remaining air conditioner
The compression of air conditioner that leaving water temperature is equal to the difference of the 4th water temperature setting value and the measured deviation, that accumulated running time is long
Machine.
When the air-conditioning system is in heating mode, further, In yet another embodiment, when water temperature judgment step
When judging that the leaving water temperature of an air conditioner is more than or equal to third water temperature setting value less than or equal to the 4th water temperature setting value in S1,
The execution step S3, maintains the current operating conditions of the air-conditioning system.
Illustrate a specific embodiment of the control method according to the present invention below in conjunction with Fig. 4, Fig. 5.As shown in figure 4,
Under the air-conditioning system is in refrigeration mode, if the leaving water temperature is T, the first water temperature setting value is X1, the second water temperature
Setting value is X2 and the measured deviation of temperature measurement unit is Δ T.When detecting leaving water temperature T < X1, while judging institute
The compressor accumulated running time for stating the module (air conditioner) that leaving water temperature in the module cluster of air-conditioning system is X1+ Δ T, add up fortune
The row time compressor of length is first closed.Leaving water temperature is the module of X2- Δ T when detecting X2 < T, while in judgment module group
The compressor accumulated running time of (air conditioner), accumulated running time short compressor are first opened.In addition, going out described in ought detecting
When coolant-temperature gage meets X1≤T≤X2, the compressor operation of air-conditioning system saves standing state.
As shown in figure 5, in the case where the air-conditioning system is in heating mode, if the leaving water temperature is T, if the third water
Warm setting value is X3, and the 4th water temperature setting value is X4 and the measured deviation of temperature measurement unit is Δ T.It is discharged when detecting
When temperature T < X3, while judging that leaving water temperature is tired for the compressor of the module (air conditioner) of X3+ Δ T in the module cluster of air-conditioning system
Runing time is counted, accumulated running time short compressor is first opened.When detecting X4 < T, while going out water temperature in judgment module group
Degree is the compressor accumulated running time of the module (air conditioner) of X4- Δ T, and the accumulated running time compressor of length is first closed.This
Outside, when detecting X3≤T≤X4, the operation of compressor saves standing state.
It to the explanation of compressor control is illustrated so that air-conditioning system includes multiple modules (air conditioner) as an example above.
However the present invention is not limited thereto.Specifically, due to the opening and closing control of compressor be after considering the measured deviation only
It is successively acted by the length of accumulated running time, for example, individual module (air conditioner) can also be by when having multiple compressors
Compressor accumulated running time controls, rather than all compressors in module (air conditioner) just acted after all acting it is next
The compressor of module.If the compressor of module 2 after precondition needs to shut down, there are two compressors in two modules 2, respectively compress
Machine 21, compressor 22,21 long operational time of compressor, direct close compressor 21；Then continue to operation judgement, it is also necessary to continue
Compressor is closed, detects longest when the compressor 31 of module 3 in the compressor of unlatching is run, close compressor 31；Rather than first
Closing compressor 22. is exactly that the compressor of multiple modules is put together to compare.
Air-conditioning system and its compressor control device of the invention and method are illustrated above.It is according to the present invention
Above scheme, due to being controlled according to the accumulated running time of the deviation of leaving water temperature and its measurement and cooler compressor
Compressor opens or closes.Since the operation control to compressor considers the accuracy error of temperature measurement sensor, effectively
It eliminates bring mistake and executes movement, so that each compressor Cumulative Elapsed Time is impartial in module cluster, extend entire engineering
Service life, reduce because respective compressive machine runing time is too long beyond the maintenance load and maintenance cost damaged after service life
With so that not having to carry out repair and replacement to compressor as far as possible in entire project life cycle.
It should be noted that in the absence of conflict, the feature in embodiment and embodiment in the present invention can phase
Mutually combination.
The above described is only a preferred embodiment of the present invention, be not intended to limit the present invention in any form, according to
According to technical spirit any simple modification, equivalent change and modification to the above embodiments of the invention, this hair is still fallen within
In the range of bright technical solution.
Claims (15)
1. a kind of compressor control device of modular combination air-conditioning system, which is characterized in that the air-conditioning system includes N number of work
For the air conditioner of module, wherein N >=2, each air conditioner include at least one compressor, and the control device includes:
Detection unit, for detecting the leaving water temperature of the air conditioner；
Judging unit is sentenced for judging when at least the leaving water temperature of an air conditioner and water temperature setting value meet a predetermined relationship
Whether the leaving water temperature of remaining air conditioner of breaking is equal to the water temperature setting value and measured deviation and/or poor, and the measured deviation is
The measured deviation of the detection unit；
Timing unit, for calculating leaving water temperature equal in the water temperature setting value and measured deviation and/or poor air conditioner
The accumulated running time of compressor；And
Execution unit, for executing the compressor of air conditioner according to the judging result of judging unit and the timing result of timing unit
Open or close.
2. device as described in claim 1, which is characterized in that
When the air-conditioning system is in refrigeration mode, when judging unit judges the leaving water temperature of an air conditioner less than first
When water temperature setting value, judge whether the leaving water temperature of remaining air conditioner is equal to the first water temperature setting value and the measured deviation
With；
The timing unit calculates leaving water temperature in remaining air conditioner and is equal to the first water temperature setting value and the measured deviation
The accumulated running time of each compressor in the air conditioner of sum；And
The execution unit first closes leaving water temperature in remaining air conditioner and is equal to the first water temperature setting value and the measured deviation
Sum, compressor that accumulated running time is long.
3. device as claimed in claim 2, which is characterized in that
When judging unit judges the leaving water temperature of an air conditioner greater than the second water temperature setting value, remaining air conditioner is judged
Whether leaving water temperature is equal to the difference of the second water temperature setting value and the measured deviation, wherein the second water temperature setting value > first water
Warm setting value；
The timing unit calculates leaving water temperature in remaining air conditioner and is equal to the second water temperature setting value and the measured deviation
The accumulated running time of each compressor in the air conditioner of difference；And
The execution unit first opens leaving water temperature in remaining air conditioner and is equal to the second water temperature setting value and the measured deviation
Difference, compressor that accumulated running time is short.
4. device as claimed in claim 3, which is characterized in that
When judging unit judges that the leaving water temperature of an air conditioner is more than or equal to the first water temperature setting value and less than or equal to second
When water temperature setting value, the execution unit maintains the current operating conditions of the air-conditioning system.
5. device according to any one of claims 1-4, which is characterized in that
When the air-conditioning system is in heating mode, when judging unit judges that the leaving water temperature of an air conditioner is less than third
When water temperature setting value, judge whether the leaving water temperature of remaining air conditioner is equal to the third water temperature setting value and the measured deviation
With；
The timing unit calculates leaving water temperature in remaining air conditioner and is equal to the third water temperature setting value and the measured deviation
The accumulated running time of each compressor in the air conditioner of sum；And
The execution unit first opens leaving water temperature in remaining air conditioner and is equal to the third water temperature setting value and the measured deviation
Sum, compressor that accumulated running time is short.
6. device as claimed in claim 5, which is characterized in that
When judging unit judges the leaving water temperature of an air conditioner greater than the 4th water temperature setting value, remaining air conditioner is judged
Whether leaving water temperature is equal to the difference of the 4th water temperature setting value and the measured deviation, wherein the 4th water temperature setting value > third water
Warm setting value；
The timing unit calculates leaving water temperature in remaining air conditioner and is equal to the 4th water temperature setting value and the measured deviation
The accumulated running time of each compressor in the air conditioner of difference；And
The execution unit first closes leaving water temperature in remaining air conditioner and is equal to the 4th water temperature setting value and the measured deviation
Difference, compressor that accumulated running time is long.
7. device as claimed in claim 6, which is characterized in that
When judging unit judges that the leaving water temperature of an air conditioner is more than or equal to third water temperature setting value and less than or equal to the 4th
When water temperature setting value, the execution unit maintains the current operating conditions of the air-conditioning system.
8. a kind of compressor control method of modular combination air-conditioning system, which is characterized in that the air-conditioning system includes N number of work
For the air conditioner of module, wherein N >=2, each air conditioner include an at least compressor, and the control method includes:
Detecting step detects the leaving water temperature of the air conditioner；
Judgment step judges to sentence when the leaving water temperature of an at least air conditioner and water temperature setting value meet a predetermined relationship
Whether the leaving water temperature of remaining air conditioner of breaking is equal to the water temperature setting value and measured deviation and/or poor, and the measured deviation is
The measured deviation of the detecting step；
Timed process calculates the compression that leaving water temperature is equal in the water temperature setting value and measured deviation and/or poor air conditioner
The accumulated running time of machine；And
Step is executed, opening for the compressor of air conditioner is executed according to the judging result of judgment step and the timing result of timed process
It opens or closes.
9. method according to claim 8, which is characterized in that
When the air-conditioning system is in refrigeration mode, in judgment step, when the leaving water temperature for judging an air conditioner is less than
When the first water temperature setting value, judge whether the leaving water temperature of remaining air conditioner is equal to the first water temperature setting value and the measurement is inclined
The sum of difference；
In the timed process, calculates leaving water temperature in remaining air conditioner and be equal to the first water temperature setting value and the measured deviation
Sum air conditioner in each compressor accumulated running time；And
In the execution step, first closes leaving water temperature in remaining air conditioner and be equal to the first water temperature setting value and the measurement partially
The sum of difference, accumulated running time length compressor.
10. method as claimed in claim 9, which is characterized in that
When the leaving water temperature for judging an air conditioner in judgment step is greater than the second water temperature setting value, remaining air conditioner is judged
Leaving water temperature whether be equal to the difference of the second water temperature setting value and the measured deviation, wherein the second water temperature setting value > the first
Water temperature setting value；
In the timed process, calculates leaving water temperature in remaining air conditioner and be equal to the second water temperature setting value and the measured deviation
Difference air conditioner in each compressor accumulated running time；And
In the execution step, first opens leaving water temperature in remaining air conditioner and be equal to the second water temperature setting value and the measurement partially
The difference of difference, compressor that accumulated running time is short.
11. method as claimed in claim 10, which is characterized in that
In judgment step, judge that the leaving water temperature of an air conditioner is more than or equal to the first water temperature setting value and is less than or equal to the
When two water temperature setting values, in the execution step, the current operating conditions of the air-conditioning system are maintained.
12. such as the described in any item methods of claim 8-11, which is characterized in that
When the air-conditioning system is in heating mode, in judgment step, judge that the leaving water temperature of an air conditioner is less than
When third water temperature setting value, judge whether the leaving water temperature of remaining air conditioner is equal to the third water temperature setting value and the measurement is inclined
The sum of difference；
In the timed process, calculates leaving water temperature in remaining air conditioner and be equal to the third water temperature setting value and the measured deviation
Sum air conditioner in each compressor accumulated running time；And
In the execution step, first opens leaving water temperature in remaining air conditioner and be equal to the third water temperature setting value and the measurement partially
The sum of difference, compressor that accumulated running time is short.
13. method as claimed in claim 12, which is characterized in that
When the leaving water temperature for judging an air conditioner in judgment step is greater than the 4th water temperature setting value, remaining air conditioner is judged
Leaving water temperature whether be equal to the difference of the 4th water temperature setting value and the measured deviation, wherein the 4th water temperature setting value > third
Water temperature setting value；
In the timed process, calculates leaving water temperature in remaining air conditioner and be equal to the 4th water temperature setting value and the measured deviation
Difference air conditioner in each compressor accumulated running time；And
The execution step first closes leaving water temperature in remaining air conditioner and is equal to the 4th water temperature setting value and the measured deviation
Difference, compressor that accumulated running time is long.
14. method as claimed in claim 13, which is characterized in that
When the leaving water temperature for judging an air conditioner in judgment step is more than or equal to third water temperature setting value and is less than or equal to the
When four water temperature setting values, the execution step maintains the current operating conditions of the air-conditioning system.
15. a kind of modular combination air-conditioning system characterized by comprising multiple compressors, outlet pipe, leaving water temperature detection
Unit and such as described in any item control devices of claim 1-7.
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| CN107906670A (en) * | 2017-11-13 | 2018-04-13 | 南京天加环境科技有限公司 | A kind of quick loading control method of modularization cold water heat pump unit |
| CN108386974B (en) * | 2018-01-29 | 2021-11-02 | 青岛海尔空调电子有限公司 | Air-cooled magnetic suspension air conditioning unit and control method thereof |
| CN110118422B (en) * | 2018-02-07 | 2021-07-13 | 台达电子工业股份有限公司 | Air conditioning system and operation method thereof |
| CN109084452B (en) * | 2018-08-30 | 2021-11-19 | 青岛海信日立空调系统有限公司 | Air conditioner control method and air conditioner |
| CN109237712B (en) * | 2018-09-25 | 2019-12-27 | 珠海格力电器股份有限公司 | Water temperature control method for multi-module unit |
| CN110686381B (en) * | 2019-10-15 | 2021-09-14 | 广东美的暖通设备有限公司 | Air conditioner control method and device and computer readable storage medium |
| CN111076371A (en) * | 2019-12-09 | 2020-04-28 | 广西电网有限责任公司南宁供电局 | Control method and system for dynamic demand response of central air conditioner |
| CN217979396U (en) * | 2022-05-13 | 2022-12-06 | 青岛澳柯玛生物医疗有限公司 | Parallel control system of variable frequency press |
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