CN105546745B - A kind of central air conditioner main machine unit group control method and apparatus - Google Patents
A kind of central air conditioner main machine unit group control method and apparatus Download PDFInfo
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- CN105546745B CN105546745B CN201511025008.4A CN201511025008A CN105546745B CN 105546745 B CN105546745 B CN 105546745B CN 201511025008 A CN201511025008 A CN 201511025008A CN 105546745 B CN105546745 B CN 105546745B
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Classifications
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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
- F24F2110/00—Control inputs relating to air properties
-
- 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
- F24F2140/00—Control inputs relating to system states
- F24F2140/20—Heat-exchange fluid temperature
Abstract
The present invention be suitable for central air-conditioning energy field, there is provided a kind of central air conditioner main machine unit group control method, with solve adjusting of the existing manual type to air-conditioner host it is not prompt enough accurately, can not make air-conditioner set all the time by it is a kind of it is energy-efficient in a manner of run the problem of.The described method includes：Obtain the team control parameter of central air conditioner main machine unit；When the host unit leaving water temperature exceedes temperature preset value or the host unit actual refrigerating capacity exceedes maximum cooling capacity preset value, it is the host that can enable state to start the Host Status；When the host unit leaving water temperature is less than the temperature preset value, and the host unit actual refrigerating capacity is less than the maximum cooling capacity preset value, stop the Host Status for can closed mode host.By the present invention, according to the live workload demand of central air conditioner main machine unit, the automatic plus-minus to air-conditioner host is completed, the Auto-matching control of load is realized, so as to reach the energy-efficient operational effect of central air-conditioning.
Description
Technical field
The present invention relates to central air-conditioning energy field, more particularly to a kind of central air conditioner main machine unit group control method and dress
Put.
Background technology
In central air conditioner system, refrigeration host computer unit, chilled water pump, cooling water pump, blower fan of cooling tower and end are set
Standby capacity is selected according to building maximum planned load, and leaves 10% to 15% surplus so that at all seasons
In, system works under fixed maximum flow of water amount and maximum quantity of wind for a long time.
However, due to season, the change with customer charge round the clock, the load of air-conditioning reality within most times more than
Design (calculated) load is low.Wherein, hours of operation of the load factor below 50% accounts for more than the 50% of whole run times in 1 year.
When air conditioner load changes, it is necessary to the output of corresponding adjustment equipment, and it is typically that air-conditioning is judged using manual type at present
The situation of change of load, and add and subtract host and the runing adjustment to ancillary equipment manually according to load variations.The tune of manual type
Section it is often not prompt enough and accurate, it is impossible to make air-conditioner set all the time by it is a kind of it is energy-efficient in a manner of run.
The content of the invention
It is an object of the invention to provide a kind of central air conditioner main machine unit group control method and apparatus, it is intended to solves existing people
Adjusting of the work mode to air-conditioner host is not prompt enough accurate, can not make air-conditioner set all the time by it is a kind of it is energy-efficient in a manner of run
The problem of.
First aspect present invention, there is provided a kind of central air conditioner main machine unit group control method, including：
The team control parameter of central air conditioner main machine unit is obtained, the team control parameter includes：Host unit leaving water temperature, host
Unit actual refrigerating capacity and Host Status；
When the host unit leaving water temperature exceedes temperature preset value or the host unit actual refrigerating capacity more than most
During big refrigerating capacity preset value, it is the host that can enable state to start the Host Status；
When the host unit leaving water temperature is less than the temperature preset value, and the host unit actual refrigerating capacity is low
When the maximum cooling capacity preset value, stop the Host Status for can closed mode host.
Second aspect of the present invention, there is provided a kind of central air conditioner main machine unit group control device, including：
Parameter acquisition module, for obtaining the team control parameter of central air conditioner main machine unit, the team control parameter includes：Host
Unit leaving water temperature, host unit actual refrigerating capacity and Host Status；
Judgment module, for judging whether host unit leaving water temperature exceedes temperature preset value, the actual refrigeration of host unit
Whether amount exceedes maximum cooling capacity preset value；
Starting module, for when the judgment module judge the host unit leaving water temperature exceed temperature preset value or
When the host unit actual refrigerating capacity exceedes maximum cooling capacity preset value, it is the master that can enable state to start the Host Status
Machine；
Stopping modular, for judging that the host unit leaving water temperature is preset less than the temperature when the judgment module
Value, and when the host unit actual refrigerating capacity be less than the maximum cooling capacity preset value, stop the Host Status be can
The host of closed mode.
The existing compared with prior art beneficial effect of the present invention is：Technical solution provided by the invention is directed to central air-conditioning
Host unit and auxiliary device, according to live workload demand, add and subtract host automatically, realize the Auto-matching control of load, i.e.,
Host unit team control, so as to reach the energy-efficient operational effect of central air-conditioning.
Brief description of the drawings
Fig. 1 is the flow chart for the central air conditioner main machine unit group control method that the embodiment of the present invention one provides；
Fig. 2 is two kinds of different air conditioner refrigerating devices in the central air conditioner main machine unit group control method that the embodiment of the present invention one provides
The efficiency curve synoptic diagram of group；
Fig. 3 is the flow chart of central air conditioner main machine unit group control method provided by Embodiment 2 of the present invention；
Fig. 4 is the structure diagram for the central air conditioner main machine unit group control device that the embodiment of the present invention three provides；
Fig. 5 is the structure diagram for the central air conditioner main machine unit group control device that the embodiment of the present invention four provides.
Embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, with reference to the accompanying drawings and embodiments, it is right
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
It is described in detail below in conjunction with realization of the specific attached drawing to the present invention.
Embodiment one：
Fig. 1 shows the flow for the central air conditioner main machine unit group control method that the embodiment of the present invention one provides, and this method can
Applied to control device, to realize that the work to central air conditioner main machine unit is adjusted, wherein the control device for example can be meter
Calculate machine equipment.The exemplary central air conditioner main machine unit group control methods of Fig. 1 specifically include step S101 to S103, and details are as follows：
S101, the team control parameter for obtaining central air conditioner main machine unit, team control parameter include：Host unit leaving water temperature, master
Machine unit actual refrigerating capacity and Host Status.
Control device obtains the team control parameter of central air conditioner main machine unit, which can be, but not limited to include host
Unit leaving water temperature, host unit actual refrigerating capacity and Host Status.
Specifically, host unit leaving water temperature, that is, manifold chilled water leaving water temperatures, represent manifold chilled water leaving water temperatures
Real-time detected value；Host unit actual refrigerating capacity runs the actual cold total value of host, represents that the host in operating status is real
The refrigerating capacity total value of border measurement；Host Status, that is, Host Status mark, including can enable state and can closed mode, shape can be enabled
The host of state represents the current host that has been switched off and can enable at any time, can the host of closed mode represent current enabled
And the host that can be closed at any time.
S102, when host unit leaving water temperature exceedes temperature preset value or host unit actual refrigerating capacity exceed maximum make
During cold preset value, it is the host that can enable state to start Host Status.
Specifically, the calculation formula of temperature preset value is：
Temperature preset value=host water outlet temperature setting value+host leaving water temperature deviation setting value
Wherein, host water outlet temperature setting value refers to the average value of the water outlet temperature setting value of each operation host, every master
Machine water outlet temperature setting value can be by User Defined, and default value is 7 DEG C；Host leaving water temperature deviation setting value sets scope
For 0.5 DEG C~1 DEG C, default value is 1 DEG C.
Specifically, the calculation formula of maximum cooling capacity preset value is：
Wherein, N is the quantity of operation host, represents to be in the host number of units of operating status in central air conditioner main machine unit；
95% effect is that certain surplus is reserved to maximum cooling capacity, avoids host overload operation.
Further, the calculation formula of host maximum cooling capacity is：
Wherein, load on host computers percentage represents the percentage load of the host in operating status；Host predict cold and
Load on host computers limits value is preset parameter, is described in detail as follows：
Host prediction cold is that the host that control device is predicted by load prediction module predicts refrigerating capacity.
Specifically, load prediction module predicts the load of " future time instance " system by establishing load forecasting model.It is negative
Lotus prediction model passes through preceding 3 time point nearest with current time, and the master of a few days ago same time point of current time
The real-time refrigerating capacity of machine, calculates refrigeration coefficient of discharge, in conjunction with current time the point of same time a few days ago backward 12 when
Between the real-time refrigerating capacity of host put, predict the host prediction refrigerating capacity of current time.
Load on host computers limits value represent host reach highest energy efficiency than when load capacity.
Specifically, Energy Efficiency Ratio is under declared working condition and rated condition, and actual refrigerating capacity is with actually entering during operation of air conditioner
Power ratio, i.e. performance parameter (Coefficient of Performance, COP).This is a composite target, is reflected
The refrigerating capacity that unit input power is converted into during operation of air conditioner.COP is bigger, and the electric energy saved when refrigerating capacity is equal is just
More, efficiency is higher.
Fig. 2 shows the efficiency curve of two kinds of different air conditioner refrigerating units.Wherein, abscissa represents load factor, ordinate
Represent the ratio of input power and refrigerating capacity, the i.e. inverse of COP.As can be seen that when efficiency curve reaches minimum point, COP values
Maximum, reaches highest energy efficiency ratio at this time, is best efficiency point.
From Fig. 2 it was found from the contrast of two kinds of efficiency curves, the peak efficiency value of air-conditioning difference refrigeration unit is different, and Fig. 2 is left
Energy Efficiency Ratio in efficiency curve shown in figure when load reaches 80% is maximum；And negative in the efficiency curve shown in Fig. 2 right figures
Lotus reaches Energy Efficiency Ratio maximum when 70%.Therefore need to obtain the efficiency curve of each air conditioner refrigerating unit in advance, draw master
Machine reach highest energy efficiency than when load capacity, i.e. load on host computers limits value.
Meanwhile the best efficiency point of air conditioner refrigerating unit can also change with the change of time and work condition environment, because
This needs periodic detection, efficiency curve and load on host computers limits value is updated, so as to ensure that integrally cooling unit can be highest comprehensive
Close and run under host C OP states.
Further, when host unit leaving water temperature exceedes temperature preset value or host unit actual refrigerating capacity exceedes most
During big refrigerating capacity preset value, illustrate that the load of current air-conditioning is excessive, host share loads can be increased.According to Host Status mark
Will, determines whether in the host that can enable state, if so, then starting in the host that can enable state.
S103, be less than temperature preset value when host unit leaving water temperature, and host unit actual refrigerating capacity is less than maximum
During refrigerating capacity preset value, stop Host Status for can closed mode host.
Specifically, when host unit leaving water temperature is less than temperature preset value, and host unit actual refrigerating capacity is less than most
During big refrigerating capacity preset value, illustrate that current air conditioner load has surplus, host can be stopped reducing the waste of unnecessary load.According to
Host Status mark, determine whether in can closed mode host, if so, then stop in can closed mode master
Machine.
In the present embodiment, workload demand is determined by the judgement to temperature and refrigerating capacity, and add automatically according to load condition
Subtract host, the Auto-matching control of load is realized, so as to reach the energy-efficient operational effect of central air-conditioning.
Embodiment two：
Fig. 3 shows the flow of central air conditioner main machine unit group control method provided by Embodiment 2 of the present invention, and this method can
Applied to control device, to realize that the work to central air conditioner main machine unit is adjusted, wherein the control device for example can be meter
Calculate machine equipment.The exemplary central air conditioner main machine unit group control methods of Fig. 3 specifically include step S201 to S211, and details are as follows：
S201, the team control parameter for obtaining central air conditioner main machine unit, team control parameter include：Host unit leaving water temperature, master
Machine unit actual refrigerating capacity, Host Status, the load factor for running host, the rate of temperature fall of host, the quantity for running host, operation
Host overall refrigerating effect remaining sum.
Control device obtains the team control parameter of central air conditioner main machine unit, which can be, but not limited to include host
Unit leaving water temperature, host unit actual refrigerating capacity, Host Status, the load factor for running host, the rate of temperature fall of host, operation
Quantity, the operation host overall refrigerating effect remaining sum of host.
It should be noted that host unit leaving water temperature, host unit actual refrigerating capacity and Host Status and embodiment one
Step S101 acquired in team control parameter it is identical, specifically refer to the step S101 of embodiment one, details are not described herein again.Need
Other team control parameters obtained describe in detail as follows：
Load factor, that is, load on host computers percentage of host is run, represents the percentage load of the host in operating status.
The rate of temperature fall of host is host chilled water out temperature rate of change per minute, unit for DEG C/min, it is main
Machine chilled water out temperature is the real-time detected value of host chilled water out temperature.
The quantity for running host represents to be in the host number of units of operating status in central air conditioner main machine unit.
Operation host overall refrigerating effect remaining sum calculation formula be：
Wherein, N is the quantity of operation host；91% effect is that certain surplus is reserved to maximum cooling capacity, avoids leading
Machine overload operation；Host unit actual refrigerating capacity runs the actual cold total value of host, represents that the host of operating status is actual
The refrigerating capacity total value of measurement.
S202, judge whether host unit leaving water temperature exceed temperature preset value or host unit actual refrigerating capacity
More than maximum cooling capacity preset value.
Judge whether host unit leaving water temperature exceedes temperature preset value or whether host unit actual refrigerating capacity exceedes
Maximum cooling capacity preset value, if host unit leaving water temperature exceedes temperature preset value or host unit actual refrigerating capacity exceedes most
Big refrigerating capacity preset value, then perform step S203, otherwise performs step S207.
It should be noted that temperature preset value and maximum cooling capacity preset value and the temperature in the step S102 of embodiment one
Preset value is identical with maximum cooling capacity preset value, specifically refers to the step S102 of embodiment one, details are not described herein again.
Specifically, when host unit leaving water temperature exceedes temperature preset value or host unit actual refrigerating capacity exceedes maximum
During refrigerating capacity preset value, illustrate that the load of current air-conditioning is excessive, host share loads can be increased, continue to execute step S203,
Further accurate judgement is carried out to starting host approach；Otherwise illustrate that current air conditioner load has surplus, can stop host with
The waste of unnecessary load is reduced, continues to execute step S207, further accurate judgement is carried out to stopping host approach.
S203, judge team control parameter whether and meanwhile meet following to start host condition e1) to e3)：
E1) load factor of every operation host exceedes preset baseline load rate；
E2) rate of temperature fall of every operation host is less than temperature decrease rate preset value；
E3) All hosts are in stable state.
When team control parameter meets to start host condition e1 at the same time) to e3) when, step S204 is performed, otherwise performs step
S212。
Specifically, the calculation formula of preset baseline load rate is：
Preset baseline load rate=load on host computers limits value-host high load judgment value
Wherein, load on host computers limits value represent host reach highest energy efficiency than when load capacity, the step of with embodiment one
Load on host computers limits value in S102 is identical, specifically refers to the step S102 of embodiment one, details are not described herein again；Host is high negative
Judgement surplus of the judgment value expression to load on host computers limits value is carried, when whether the host actual negative carrying capacity for judging operation exceedes highest
During the load capacity of Energy Efficiency Ratio, judge that thresholding could be provided as the difference that load on host computers limits value subtracts host high load judgment value, it is main
Machine high load judgment value can be by User Defined, default value 5%.
Temperature decrease rate preset value is rate of temperature fall setting value, represents chilled water leaving water temperature change speed per minute
Rate, can be by User Defined, and default value is 0.3 DEG C/min.
The condition that host is in stable state is：Stabilization time after host-initiated or stopping is set more than stabilization time
Value, wherein stabilization time setting value are the stabilization time after host starts or stops, can be by User Defined, and default value is 20 points
Clock.
Specifically, when the load factor of every operation host exceedes preset baseline load rate, that is, host condition e1 is started) into
Immediately, illustrate operation host actual negative carrying capacity more than highest energy efficiency than load capacity, it is necessary to consider increase host it is negative to share
Lotus.
S204, judge whether the duration that team control parameter meets to start host condition reaches time preset value.
When team control parameter meets that the duration for starting host condition reaches time preset value, step S205 is performed, it is no
Then perform step S212.
Specifically, time preset value is condition duration setting value, represents to meet the judgement for starting or stopping host
The duration setting value of condition, can be by User Defined, and default value is 10 minutes.
When meeting to start host condition e1 in step S203 at the same time) to e3) greater than condition duration duration set
When putting value, step S205 is continued to execute.
S205, determine whether host be in can enable state.
When thering is host to be in can to enable state, step S206 is performed, otherwise performs step S212.
Specifically, according to Host Status mark, when it is that can enable the host of state to have Host Status, step is continued to execute
S206。
S206, start in the host that can enable state.
S207, judge team control parameter whether and meanwhile meet following to stop host condition f1) to f3)：
F1 the quantity of host) is run more than two；
F2) operation host overall refrigerating effect remaining sum exceedes separate unit host maximum cooling capacity；
F3) All hosts are in stable state.
When team control parameter meets the stopping host condition f1 at the same time) to f3) when, step S208 is performed, otherwise performs step
Rapid S212.
It should be noted that separate unit host maximum cooling capacity, that is, host maximum cooling capacity, host maximum cooling capacity is with implementing
Host maximum cooling capacity in the step S102 of example one is identical, specifically refers to the step S102 of embodiment one, no longer superfluous herein
State.
The condition that host is in stable state is：Stabilization time after host-initiated or stopping is set more than stabilization time
Value, wherein stabilization time setting value are the stabilization time after host starts or stops, can be by User Defined, and default value is 20 points
Clock.
Specifically, when operation host overall refrigerating effect remaining sum exceedes separate unit host maximum cooling capacity, i.e. stopping host condition f2)
During establishment, illustrate operation host actual negative carrying capacity less than highest energy efficiency than load capacity, it is necessary to consider stop host making to be in
The host of operating status can be in highest COP states.
S208, judge whether the duration that team control parameter meets to stop host condition reaches time preset value.
When team control parameter meets that the duration for stopping host condition reaches time preset value, step S208 is performed, it is no
Then perform step S212.
Specifically, time preset value is condition duration setting value, represents to meet the judgement for starting or stopping host
The duration setting value of condition, can be by User Defined, and default value is 10 minutes.
When meeting to stop host condition f1 in step S207 at the same time) to f3) greater than condition duration duration set
When putting value, step S209 is continued to execute.
S209, judge to run whether host overall refrigerating effect remaining sum exceedes separate unit host rated cooling capacity.
When operation host overall refrigerating effect remaining sum exceedes separate unit host rated cooling capacity, step S210 is performed, is otherwise performed
Step S212.
Specifically, host rated cooling capacity is by the refrigerating capacity that is marked during product export；Run host overall refrigerating effect remaining sum
Computational methods specifically refer to described in step S201, details are not described herein again.
S210, judge whether rated cooling capacity is in and can close less than or equal to the host of operation host overall refrigerating effect remaining sum
Closed state.
If rated cooling capacity be less than or equal to operation host overall refrigerating effect remaining sum host be in can closed mode, hold
Row step S211, otherwise performs step S212.
Specifically, according to Host Status mark, when rated cooling capacity is less than or equal to operation host overall refrigerating effect remaining sum
Host be in can closed mode when, continue to execute step S211.
S211, stop in can the rated cooling capacity of closed mode be less than or equal to operation host overall refrigerating effect remaining sum
Host.
Specifically, stop Host Status for can closed mode host, and the rated cooling capacity of the host be less than or
Equal to operation host overall refrigerating effect remaining sum.
S212, exit.
Specifically, control device terminates a team control process to central air conditioner main machine unit.
In the present embodiment, judged by the combinatory analysis to temperature and refrigerating capacity, determine the workload demand at scene, carried out certainly
Dynamic plus-minus host, realizes the Auto-matching control of load, so as to reach the energy-efficient operational effect of central air-conditioning.
Embodiment three：
Fig. 4 shows the composition structure for the central air conditioner main machine unit group control device that the embodiment of the present invention three provides, in order to
Easy to illustrate, illustrate only and the relevant part of the embodiment of the present invention.The exemplary central air conditioner main machine unit group control devices of Fig. 4 can
Be previous embodiment one provide central air conditioner main machine unit group control method executive agent, its can be group control device or
A function module in group control device.The exemplary central air conditioner main machine unit group control devices of Fig. 4 mainly include：Parameter acquiring mould
Block 41, judgment module 42, starting module 43 and stopping modular 44.Each function module describes in detail as follows：
Parameter acquisition module 41, for obtaining the team control parameter of central air conditioner main machine unit, the team control parameter includes：It is main
Machine unit leaving water temperature, host unit actual refrigerating capacity and Host Status；
Judgment module 42, for judging whether host unit leaving water temperature exceedes temperature preset value, the actual system of host unit
Whether cold exceedes maximum cooling capacity preset value；
Starting module 43, for when the judgment module judge the host unit leaving water temperature exceed temperature preset value or
When host unit actual refrigerating capacity described in person exceedes maximum cooling capacity preset value, start the Host Status as state can be enabled
Host；
Stopping modular 44, for judging that the host unit leaving water temperature is preset less than the temperature when the judgment module
Value, and when the host unit actual refrigerating capacity be less than the maximum cooling capacity preset value, stop the Host Status be can
The host of closed mode.
It was found from the exemplary central air conditioner main machine unit group control devices of above-mentioned Fig. 4, the present embodiment passes through to temperature and refrigeration
The judgement of amount determines workload demand, and adds and subtracts host automatically according to load condition, the Auto-matching control of load is realized, so as to reach
The operational effect energy-efficient to central air-conditioning.
Example IV：
Fig. 5 shows the composition structure for the central air conditioner main machine unit group control device that the embodiment of the present invention four provides, in order to
Easy to illustrate, illustrate only and the relevant part of the embodiment of the present invention.The exemplary central air conditioner main machine unit group control devices of Fig. 5 can
Be previous embodiment two provide central air conditioner main machine unit group control method executive agent, its can be group control device or
A function module in group control device.The exemplary central air conditioner main machine unit group control devices of Fig. 5 mainly include：Parameter acquiring mould
Block 51, judgment module 52, starting module 53 and stopping modular 54.Each function module describes in detail as follows：
Parameter acquisition module 51, for obtaining the team control parameter of central air conditioner main machine unit, the team control parameter includes：It is main
Machine unit leaving water temperature, host unit actual refrigerating capacity, Host Status, the load factor for running host, the rate of temperature fall of host, fortune
Quantity, the operation host overall refrigerating effect remaining sum of row host；
Judgment module 52, for judging whether host unit leaving water temperature exceedes temperature preset value, the actual system of host unit
Whether cold exceedes maximum cooling capacity preset value；
Starting module 53, for when the judgment module judge the host unit leaving water temperature exceed temperature preset value or
When host unit actual refrigerating capacity described in person exceedes maximum cooling capacity preset value, start the Host Status as state can be enabled
Host；
Stopping modular 54, for judging that the host unit leaving water temperature is preset less than the temperature when the judgment module
Value, and when the host unit actual refrigerating capacity be less than the maximum cooling capacity preset value, stop the Host Status be can
The host of closed mode.
Specifically, starting module 53 includes starting host judging submodule 531 and starts time judging submodule 532.Respectively
Function module describes in detail as follows：
Start host judging submodule 531, for when the host unit leaving water temperature exceed the temperature preset value or
When host unit actual refrigerating capacity described in person exceedes the maximum cooling capacity preset value, judge the team control parameter whether and meanwhile it is full
It is enough lower startup host condition g1) to g3)：
G1) load factor of every operation host exceedes preset baseline load rate；
G2) rate of temperature fall of every operation host is less than temperature decrease rate preset value；
G3) All hosts are in stable state；
If the team control parameter meets the startup host condition g1 at the same time) to g3), start the Host Status as can
Enable the host of state.
Start time judging submodule 532, if meeting the startup host condition g1 at the same time for the team control parameter) extremely
G3), then judge that the team control parameter meets whether the duration of the startup host condition reaches time preset value, and work as institute
Duration that team control parameter meets the startup host condition is stated when reaching the time preset value, starts the Host Status
For the host of state can be enabled.
Specifically, stopping modular 54 includes stopping host judging submodule 541, dwell time judging submodule 542 and master
Machine selects submodule 543.Each function module describes in detail as follows：
Stop host judging submodule 541, for being less than the temperature preset value when the host unit leaving water temperature, and
And the host unit actual refrigerating capacity is when being less than the maximum cooling capacity preset value, judge the team control parameter whether and meanwhile it is full
It is enough lower stopping host condition h1) to h3)：
H1) quantity of the operation host is more than two；
H2) the operation host overall refrigerating effect remaining sum exceedes the separate unit host maximum cooling capacity；
H3) All hosts are in stable state；
If the team control parameter meets the stopping host condition h1 at the same time) to h3), stop the Host Status as can
The host of closed mode.
Dwell time judging submodule 542, if meeting the stopping host condition h1 at the same time for the team control parameter) extremely
H3), then judge that the team control parameter meets whether the duration of the stopping host condition reaches the time preset value, and
When the team control parameter meets that the duration of the stopping host condition reaches the time preset value, stop the host
State for can closed mode host.
Selection of chiller submodule 543, the duration for meeting the stopping host condition when the team control parameter reach
During to the time preset value, judge whether the operation host overall refrigerating effect remaining sum exceedes separate unit host rated cooling capacity, and
And rated cooling capacity be less than or equal to it is described operation host overall refrigerating effect remaining sum host whether be can closed mode, if described
Rated cooling capacity be less than or equal to it is described operation host overall refrigerating effect remaining sum host for can closed mode, then stop the volume
Customize the host that cold is less than or equal to the operation host overall refrigerating effect remaining sum.
It was found from the exemplary central air conditioner main machine unit group control devices of above-mentioned Fig. 5, the present embodiment passes through to temperature and refrigeration
The combinatory analysis of amount judges, determines the workload demand at scene, carries out automatic plus-minus host, realizes the Auto-matching control of load,
So as to reach the energy-efficient operational effect of central air-conditioning.
It should be noted that each embodiment in this specification is described by the way of progressive, each embodiment
What is stressed is all the difference with other embodiment, between each embodiment same or similar part mutually referring to
.For device class embodiment, since it is substantially similar to embodiment of the method, so description is fairly simple, it is related
Part illustrates referring to the part of embodiment of the method.
It is worth noting that, in above device embodiment, included modules and unit are simply according to function logic
Divided, but be not limited to above-mentioned division, as long as corresponding function can be realized；In addition, each function module
Specific name with unit is also only to facilitate mutually distinguish, the protection domain being not intended to limit the invention.
Can it will appreciated by the skilled person that realizing that all or part of step in the various embodiments described above method is
To instruct relevant hardware to complete by program, corresponding program can be stored in a computer read/write memory medium
In, the storage medium, such as ROM/RAM, disk or CD.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
All any modification, equivalent and improvement made within refreshing and principle etc., should all be included in the protection scope of the present invention.
Claims (9)
- A kind of 1. central air conditioner main machine unit group control method, it is characterised in that including：The team control parameter of central air conditioner main machine unit is obtained, the team control parameter includes：Host unit leaving water temperature, host unit Actual refrigerating capacity and Host Status；Made when the host unit leaving water temperature exceedes temperature preset value or the host unit actual refrigerating capacity more than maximum During cold preset value, it is the host that can enable state to start the Host Status；When the host unit leaving water temperature is less than the temperature preset value, and the host unit actual refrigerating capacity is less than institute When stating maximum cooling capacity preset value, stop the Host Status for can closed mode host；The team control parameter further includes：The load factor of every operation host and the rate of temperature fall of every operation host, then it is described to work as It is pre- more than maximum cooling capacity that the host unit leaving water temperature exceedes temperature preset value or the host unit actual refrigerating capacity If during value, it is that the host that can enable state includes to start the Host Status：When the host unit leaving water temperature exceedes institute more than the temperature preset value or the host unit actual refrigerating capacity When stating maximum cooling capacity preset value, judge the team control parameter whether and meanwhile meet following to start host condition a1) to a3)：A1) load factor of every operation host exceedes preset baseline load rate；A2) rate of temperature fall of every operation host is less than temperature decrease rate preset value；A3) All hosts are in stable state；If the team control parameter meets the startup host condition a1 at the same time) to a3), start the Host Status as that can enable The host of state.
- 2. central air conditioner main machine unit group control method according to claim 1, it is characterised in that if the team control is joined Number meets the startup host condition a1 at the same time) to a3), then it is that the host that can enable state also wraps to start the Host Status Include：If the team control parameter meets the startup host condition a1 at the same time) to a3), judge that the team control parameter meets described in Whether the duration for starting host condition reaches time preset value, when the team control parameter meets the startup host condition When duration reaches the time preset value, it is the host that can enable state to start the Host Status.
- 3. central air conditioner main machine unit group control method according to claim 1, it is characterised in that the team control parameter is also wrapped Include：Run the quantity, operation host overall refrigerating effect remaining sum and separate unit host maximum cooling capacity of host, then it is described to work as the host machine Group leaving water temperature is less than the temperature preset value, and the host unit actual refrigerating capacity is preset less than the maximum cooling capacity During value, stop the Host Status for can the host of closed mode include：When the host unit leaving water temperature is less than the temperature preset value, and the host unit actual refrigerating capacity is less than institute When stating maximum cooling capacity preset value, judge the team control parameter whether and meanwhile meet following to stop host condition b1) to b3)：B1) quantity of the operation host is more than two；B2) the operation host overall refrigerating effect remaining sum exceedes the separate unit host maximum cooling capacity；B3) All hosts are in stable state；If the team control parameter meets the stopping host condition b1 at the same time) to b3), stop the Host Status as that can close The host of state.
- 4. central air conditioner main machine unit group control method according to claim 3, it is characterised in that if the team control is joined Number meets the stopping host condition b1 at the same time) to b3), then stop the Host Status for can the host of closed mode also wrap Include：If the team control parameter meets the stopping host condition b1 at the same time) to b3), judge that the team control parameter meets described in Whether the duration for stopping host condition reaches time preset value, and when the team control parameter meets the stopping host condition Duration when reaching the time preset value, stop the Host Status for can closed mode host.
- 5. central air conditioner main machine unit group control method according to claim 4, it is characterised in that described when the team control is joined When number meets that the duration of the stopping host condition reaches the time preset value, stop the Host Status as that can close The host of state further includes：When the team control parameter meets that the duration of the stopping host condition reaches the time preset value, described in judgement Whether operation host overall refrigerating effect remaining sum exceedes separate unit host rated cooling capacity, and rated cooling capacity is less than or equal to described Run host overall refrigerating effect remaining sum host whether be can closed mode, if the operation host overall refrigerating effect remaining sum exceed it is described Separate unit host rated cooling capacity, and the rated cooling capacity is less than or equal to the master of the operation host overall refrigerating effect remaining sum Machine for can closed mode, then stop the rated cooling capacity be less than or equal to it is described operation host overall refrigerating effect remaining sum master Machine.
- A kind of 6. central air conditioner main machine unit group control device, it is characterised in that including：Parameter acquisition module, for obtaining the team control parameter of central air conditioner main machine unit, the team control parameter includes：Host unit Leaving water temperature, host unit actual refrigerating capacity and Host Status；Judgment module, for judging whether host unit leaving water temperature exceedes temperature preset value, host unit actual refrigerating capacity is It is no to exceed maximum cooling capacity preset value；Starting module, for judging that the host unit leaving water temperature exceedes temperature preset value or described when the judgment module When host unit actual refrigerating capacity exceedes maximum cooling capacity preset value, it is the host that can enable state to start the Host Status；Stopping modular, for judging that the host unit leaving water temperature is less than the temperature preset value when the judgment module, and And the host unit actual refrigerating capacity stops the Host Status as that can close shape when being less than the maximum cooling capacity preset value The host of state；The team control parameter further includes：The load factor of every operation host and the rate of temperature fall of every operation host, then it is described to open Dynamic model block, which further includes, starts host judging submodule；The startup host judging submodule, for exceeding the temperature preset value or institute when the host unit leaving water temperature When stating host unit actual refrigerating capacity and exceeding the maximum cooling capacity preset value, judge the team control parameter whether and meanwhile meet with Lower startup host condition c1) to c3)：C1) load factor of every operation host exceedes preset baseline load rate；C2) rate of temperature fall of every operation host is less than temperature decrease rate preset value；C3) All hosts are in stable state；If the team control parameter meets the startup host condition c1 at the same time) to c3), start the Host Status as that can enable The host of state.
- 7. central air conditioner main machine unit group control device according to claim 6, it is characterised in that the starting module is also wrapped Include and start time judging submodule, if meeting the startup host condition c1 at the same time for the team control parameter) to c3), sentence The team control parameter of breaking meets whether the duration of the startup host condition reaches time preset value, and when the team control is joined When number meets that the duration of the startup host condition reaches the time preset value, start the Host Status as that can enable The host of state.
- 8. central air conditioner main machine unit group control device according to claim 6, it is characterised in that the team control parameter is also wrapped Include：The quantity, operation host overall refrigerating effect remaining sum and separate unit host maximum cooling capacity of host are run, then the stopping modular also wraps Include and stop host judging submodule；The stopping host judging submodule, for being less than the temperature preset value when the host unit leaving water temperature, and When the host unit actual refrigerating capacity is less than the maximum cooling capacity preset value, judge the team control parameter whether and meanwhile meet Stop host condition d1 below) to d3)：D1) quantity of the operation host is more than two；D2) the operation host overall refrigerating effect remaining sum exceedes the separate unit host maximum cooling capacity；D3) All hosts are in stable state；If the team control parameter meets the stopping host condition d1 at the same time) to d3), stop the Host Status as that can close The host of state.
- 9. central air conditioner main machine unit group control device according to claim 8, it is characterised in that the stopping modular also wraps Dwell time judging submodule is included, if meeting the stopping host condition d1 at the same time for the team control parameter) to d3), sentence The team control parameter of breaking meets whether the duration of the stopping host condition reaches the time preset value, and works as the group Control parameter meets the duration of the stopping host condition when reaching the time preset value, stops the Host Status as can The host of closed mode；The stopping modular further includes Selection of chiller submodule, for meeting the stopping host condition when the team control parameter When duration reaches the time preset value, it is specified to judge whether the operation host overall refrigerating effect remaining sum exceedes separate unit host Refrigerating capacity, and rated cooling capacity is less than or equal to whether the host for running host overall refrigerating effect remaining sum is that can close shape State, if the rated cooling capacity be less than or equal to it is described operation host overall refrigerating effect remaining sum host for can closed mode, Stop the host that the rated cooling capacity is less than or equal to the operation host overall refrigerating effect remaining sum.
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| TWI604162B (en) * | 2016-06-21 | 2017-11-01 | Chunghwa Telecom Co Ltd | Automatic air conditioner operation capacity adjustment system and method |
| CN106225362B (en) * | 2016-08-02 | 2019-06-14 | 顿汉布什(中国)工业有限公司 | A kind of control method and system of Double-head centrifugal refrigerating machines |
| CN106247534B (en) * | 2016-08-08 | 2019-01-29 | 珠海格力电器股份有限公司 | A kind of ambient condition judgment means, method and the air-conditioning of air-conditioning |
| CN107202409B (en) * | 2017-06-21 | 2020-01-07 | 重庆美的通用制冷设备有限公司 | Air conditioning system and control method and device thereof |
| CN109140710B (en) * | 2018-08-24 | 2021-05-04 | 重庆美的通用制冷设备有限公司 | Modular air conditioning unit series-parallel connection identification method and device and electronic equipment |
| CN109917646B (en) * | 2019-02-27 | 2022-04-01 | 武汉中电节能有限公司 | System and method for optimizing operation of regional cooling and heating equipment |
| CN110260470B (en) * | 2019-06-20 | 2020-09-29 | 西安建筑科技大学 | Central air conditioner parallel connection cold machine load optimization distribution method based on swarm intelligence architecture |
| CN110864416A (en) * | 2019-11-14 | 2020-03-06 | 南京亚派软件技术有限公司 | Start-stop optimization control method for central air-conditioning system |
| CN112308303B (en) * | 2020-10-22 | 2024-03-08 | 新奥数能科技有限公司 | High fault tolerance energy supply group load scheduling method and device based on deviation distribution and terminal equipment |
| CN114543303B (en) * | 2022-01-26 | 2023-07-14 | 深圳达实智能股份有限公司 | Operation optimization method and system for central air-conditioning refrigeration station based on operation big data |
| CN115307274B (en) * | 2022-10-12 | 2023-01-03 | 蘑菇物联技术（深圳）有限公司 | Method, apparatus and storage medium for controlling host of air conditioning system |
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