CN104006508B - A kind of central air conditioner cold source efficient matchings integrating device and control method thereof - Google Patents
A kind of central air conditioner cold source efficient matchings integrating device and control method thereof Download PDFInfo
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- CN104006508B CN104006508B CN201410236169.7A CN201410236169A CN104006508B CN 104006508 B CN104006508 B CN 104006508B CN 201410236169 A CN201410236169 A CN 201410236169A CN 104006508 B CN104006508 B CN 104006508B
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Abstract
The present invention relates to Energy Saving of Central Air-conditioning field, it is desirable to provide a kind of central air conditioner cold source efficient matchings integrating device and control method thereof.The present invention includes a rack, and described rack is provided with master controller, RS485 hub, several cold source equipment controllers, several information acquisition modules, air-break and DC source；Described master controller is connected with cold source equipment controller, information acquisition module by RS485 hub；Described air-break is connected with RS485 hub, several cold source equipment controllers, several information acquisition modules through DC source.Beneficial effects of the present invention has: monitoring central air-conditioning freezing water, cooling water system in real time, the evaporating temperature of some cold source equipments, the load factor of separate unit cold source equipment operation is controlled by reasonably optimizing, guarantee that current some cold source equipments run with greater efficiency, and make central air-conditioning whole system efficiency the most optimum.
Description
Technical field
The present invention relates to Energy Saving of Central Air-conditioning field, particularly to a kind of central air conditioner cold source efficient matchings integrating device
And control method.
Background technology
Cold source equipment is the equipment that central air conditioner system power consumption is the highest.And in Energy Saving of Central Air-conditioning, normally only to cold
Source device carries out on off control, and chilled water pump carries out Energy Saving Control, and its main cause is multiple with cold source equipment reducing energy consumption
Miscellaneous, expense is relatively high；And water pump controls relatively easy, and energy-saving effect is the most relevant.But only chilled water pump is become
Flow-control, it is impossible to make central air conditioner system reach a state the most energy-conservation.
The most in recent years, the separate unit design efficiency of cold source equipment promotes day by day, and peak is generally arranged at sub-load work
Condition, meeting the cold source equipment most of the time operates in partial load condition.But the cold source equipment of general central air conditioner system
Number of units more than 2, cooperation.And have a several different collocation mode: 1) same model bought the same period is cold
Source device；2) cold source equipment of the same producer different model bought the same period, typically with the High cooling power little cold unit of collocation
Form；3) cold source equipment of the same producer that different times is bought, normally due to former cold source equipment cannot meet current bearing
Lotus demand, increases the unit of corresponding cold to mate current loads；4) different manufacturers that different times is bought is not
The cold source equipment of same model.Tackle different cold source equipment collocation, how to ensure under different workload demands, if dry and cold
Source device can keep a greater efficiency to run, and makes the energy-saving benefit of central air conditioner system reach the highest, except equipment certainly
Outside the performance of body, reasonably optimizing to be accomplished controls the evaporating temperature of some cold source equipments, condensation temperature, single device fortune
The load factor of row.
Summary of the invention
The technical problem to be solved in the present invention is, overcomes deficiency of the prior art, it is provided that a kind of central air conditioner cold source is efficient
Coupling integrating device and control method thereof.
For solving technical problem, the solution of the present invention is:
A kind of central air conditioner cold source efficient matchings integrating device is provided, including a rack, described rack is provided with master control
Device processed, RS485 hub, several cold source equipment controllers, several information acquisition modules, air-break and straight
Stream power supply；Described master controller is connected with cold source equipment controller, information acquisition module by RS485 hub；Described
Air-break is through DC source and RS485 hub, several cold source equipment controllers, several information acquisition modules
It is connected.
Described information acquisition module input port includes platinum resistance input port, analog input port and PORT COM；Its
Middle platinum resistance input port passes with the water temperature being arranged on the chilled water feed pipe of cold source equipment, water main, return main
Cooling-water temperature sensor on sensor and cooling water house steward, return main is connected, for gathering each cold source equipment
Chilled water supply and return water temperature, cooling water supply and return water temperature information；Analog input port be arranged on chilled water return main
And the effusion meter on cooling water return main is connected, it is used for gathering the freezing water yield and cooling water inflow information.
Described cold source equipment controller input port includes digital quantity input port and analog input port, wherein digital quantity
Input port starts switch board with corresponding cold source equipment and ammeter is connected, and is used for gathering cold source equipment start and stop information and electricity
Information；Analog input port is connected with the linkage butterfly valve installed on corresponding cold source equipment chilled water return pipe, is used for adopting
The opening information of collection linkage butterfly valve.
Described cold source equipment controller output port includes digital output port and analog output port, wherein digital quantity
Output port is connected with the startup switch board of the control signal lamp on rack and cold source equipment, for the control letter on rack
Operation/the faulting instruction of signal lamp output cold source equipment, exports to the startup switch board of cold source equipment and opens/stop instruction, analog quantity
Output port is connected with the linkage butterfly valve installed on the chilled water return pipe of corresponding cold source equipment, for defeated to linkage butterfly valve
Go out opening degree instruction.
In the present invention, described rack is also equipped with connecting terminal block and socket.
In the present invention, a kind of control method based on described central air conditioner cold source efficient matchings integrating device, comprise following
Step:
Step A: set the start and stop of some cold source equipments sequentially: the start and stop order basis of design economy principle of cold source equipment,
According under different load, the expense of specific refrigerating effect consumption is ranked up.
First, the variety of energy sources (electricity, combustion gas, steam and hot water etc.) consumed according to cold source equipment, the energy making land used
Source price (if waste hot steam, used heat hot water, energy prices are equivalent to 0), the average operating efficiency of cold source equipment, meter
Calculate under specific refrigerating effect, the average operating cost that each cold source equipment is consumed；What specifically every cold source equipment was consumed is flat
All expenses are calculated as follows:
1) different cold source equipments are at the energy consumption of specific refrigerating effect 1kW, the i.e. inverse of average operating efficiency；
2) power consumption values of different cold source equipments is multiplied by respectively the energy prices of correspondence, it is thus achieved that needed for specific refrigerating effect 1kW
The average cost consumed；
Secondly, according to the variation tendency of one day internal loading, interval at corresponding load, by utilizing different cold source equipment to disappear
The sequence of consumption What are your rates, sets the collocation of different capabilities cold source equipment and runs；
In the What are your rates sequence consumed finally according to each cold source equipment specific refrigerating effect and different load interval, if dry and cold
The collocating principle of source device, determines the sequencing of the start and stop of cold source equipment.
Step B: the load factor of some cold source equipments sets: according to the Real-time Load value of air conditioning system, utilize each low-temperature receiver
The linkage butterfly valve that equipment is corresponding carries out burden apportionment to the some cold source equipments run, it is ensured that some cold source equipments real-time
Operational efficiency meets claimed below；The setting of the load factor of described every cold source equipment is as follows:
First, according to some cold source equipments in the design conditions of chilled water supply water temperature 7 DEG C He cooling water supply temperature 32 DEG C
Under, the efficiency curve under different loads rate, calculate in rate of load condensate is 10%～100% in the case of a certain value, some low-temperature receivers
The real time execution efficiency of equipment different loads rate collocation；
Then, select from some cold source equipments of above-mentioned different loads rate that real time execution efficiency is the highest one group；
Finally, when recording different load rate, the cold source equipment load factor collocation of the highest real time execution efficiency；
Step C: preset chilled water return water temperature: divided by air conditioning system service window, and to each period
Return water temperature preset；For the comfort air conditioning system in building, can be set according to following some conditions:
1) when outdoor environment temperature is less than 26 DEG C, return water temperature is risen to more than 14 DEG C,
2) when air conditioning system rate of load condensate is less than 50%, return water temperature is risen to more than 14 DEG C；
Step D: adaptive fuzzy PREDICTIVE CONTROL: be to realize under different load, the actual negative of some cold source equipments
Load rate and return water temperature actual value can meet setting requirement；Adaptive fuzzy PREDICTIVE CONTROL specifically include determine model structure and
PREDICTIVE CONTROL table correction:
1) model structure is determined: utilize fuzzy survey to distinguish system approach, control input chilled water according to the cold source equipment run
Return water temperature deviation U and output chilled-water flow Y data survey the model structure of the system of distinguishing；
First, by input, output valve obfuscation: the data will input, exported are converted into the fuzzy set of correspondence；
Secondly, setting model structure is [U (t-m), Y (t-n), Y (t)], i.e. affects two factors of t chilled-water flow Y
Chilled water return water temperature deviation and the chilled-water flow in t-n moment for the t-m moment；
Wherein, the unit symbol of time t, m, n is s, and cold source equipment controls the list of input chilled water return water temperature deviation U
Bit sign is K, and the unit symbol of output chilled-water flow Y is m3/h；
Finally, utilize historical data, under different m, n value of statistics, Y (t) and U (t-m), Y (t) and the association feelings of Y (t-n)
Condition；By setting up contingency table and the contingency table of Y (t) and Y (t-n) of Y (t) and U (t-m), the wherein pass of Y (t) and U (t-m)
In connection table, first trip is the fuzzy set of Y (t), and first is the fuzzy set of U (t-m), if the same rule calculating number 85% of statistics
Appear above on the diagonal of contingency table, then it represents that closely, m value is desired value in association；Wherein Y (t) and Y (t-n)
Contingency table in first trip be the fuzzy set of Y (t), first is the fuzzy set of Y (t-n), if statistics same rule calculating number
85% appears above on the diagonal of contingency table, then it represents that closely, n value is desired value in association；
2) PREDICTIVE CONTROL table correction: utilize the above-mentioned m tried to achieve, n value, it is thus achieved that 1 initial Fuzzy Predictive Control table；
Wherein fuzzy control table first trip is the fuzzy set of Y (t-n), and first is the fuzzy set of U (t-m), and in table, its residual value is corresponding
Y (t-n), U (t-m), the fuzzy set of predictive value Y (t) exported.In actual applications, it is not equal to predictive value when measured value
Y (t), i.e. needs to utilize measured value that initial fuzzy control table is carried out adaptive correction.By measured value is transformed into mould
Stick with paste domain, and replace Y (t) value in initial fuzzy control table, form new PREDICTIVE CONTROL table.And utilize this fuzzy pre-
The chilled-water flow of t is controlled by observing and controlling tabulation, it is ensured that under different load, the actual loading of some cold source equipments
Rate and return water temperature actual value can meet setting requirement.
In the present invention, described rate of load condensate is the ratio of air conditioning system operating load and the overall refrigerating effect of some cold source equipments.
Compared with prior art, the invention has the beneficial effects as follows:
Monitoring central air-conditioning freezing water, cooling water system, controls the evaporation temperature of some cold source equipments by reasonably optimizing in real time
The load factor that degree, separate unit cold source equipment run, it is ensured that current some cold source equipments run with greater efficiency, and make central hollow
Adjust a system effectiveness the most optimum.
Accompanying drawing explanation
Fig. 1 is the central air conditioner cold source efficient matchings integrating device internal layout of the present invention；
Fig. 2 is the freezing water system of central air conditioner Communication Graph of the present invention；
Fig. 3 is the central air conditioning cooling water system Communication Graph of the present invention；
Accompanying drawing marks: 1, master controller, and 2, RS485 hub, 3,1# cold source equipment controller；4,2# low-temperature receiver sets
Preparation controller, 5, information acquisition module, 6, air-break, 7, DC source, 8, connecting terminal block, 9, machine
Cabinet, 10, socket, 11,1# cold source equipment, 12,2# cold source equipment, 13, linkage butterfly valve, 14, linkage butterfly valve, 15,
Cooling-water temperature sensor, 16, cooling-water temperature sensor, 17, cooling-water temperature sensor, 18, cooling-water temperature sensor, 19, effusion meter, 20,
Cooling-water temperature sensor, 21, cooling-water temperature sensor, 22, effusion meter, 23,1# cold source equipment start switch board, 24, ammeter,
25,2# cold source equipment starts switch board, and 26, ammeter.
Detailed description of the invention
Below example can make the technical staff of this professional skill field more fully understand the present invention, but not with any
Mode limits the present invention.
The embodiment of the present invention provides a kind of central air conditioner cold source efficient matchings integrating device, its layout as shown in Figure 1: main
Divide upper and lower two parts, equipped with master controller 1 on the upside of described rack 9, be divided into five layers from top to bottom in downside；
Wherein, ground floor is from left to right equipped with RS485 hub 2,1# cold source equipment controller 3,2# cold source equipment controller
4；The second layer is equipped with 2 information acquisition modules, 6,1 DC source 7 of 5,2 air-breaks；Third layer and the 4th
Layer is connecting terminal block 8；Mounting receptacle 10 on the right side of layer 5.
The Communication Graph of the monitoring chilled water system in the embodiment of the present invention is as shown in Figure 2:
Equipped with cooling-water temperature sensor 15 on 1# cold source equipment 11 chilled water feed pipe, 2# cold source equipment 12 chilled water supplies water
Equipped with cooling-water temperature sensor 16 on Guan, equipped with cooling-water temperature sensor 17 on water main, on chilled water return main equipped with
Cooling-water temperature sensor 18, effusion meter 19.Equipped with cold source equipment linkage butterfly valve on 1# cold source equipment 11 chilled water return pipe
13, equipped with cold source equipment linkage butterfly valve 14 on 2# cold source equipment 12 chilled water return pipe.1# cold source equipment 11 equipped with
Ammeter 24,2# cold source equipment 12 is equipped with ammeter 26.Above-described cooling-water temperature sensor (15,16,17,18) connects
The analog input of information acquisition module 5 it is connected to the platinum resistance input port of information acquisition module 5, effusion meter 19
Port.The control signal outfan of 1# cold source equipment controller 3 connects the startup switch board 23 of cold source equipment 11 with corresponding
Linkage butterfly valve 13.The control signal outfan of 2# cold source equipment controller 4 connects the startup switch board of cold source equipment 12
25 and corresponding linkage butterfly valve 14.
The embodiment of the present invention monitoring cooling water system Communication Graph as shown in Figure 3:
The cooling water house steward of cold source equipment equipped with cooling-water temperature sensor 20, sense equipped with water temperature cooling water return main
Device 21 and effusion meter 22.Described cooling-water temperature sensor 20,21 and effusion meter 22 are connected to the defeated of information acquisition module 5
Enter end.
During rack work, civil power enters DC source 7 via air-break 6, and the 24V power supply of output is RS485 collection
Line device 2,1# cold source equipment controller 3,2# cold source equipment controller 4 and 2 information acquisition modules 5 are powered.Freezing
Water, the relevant operational factor input information acquisition module 5 of cooling water system, the operation information numeral input of cold source equipment 11
1# cold source equipment controller 3, the operation information numeral input 2# cold source equipment controller 4 of cold source equipment 12.1# low-temperature receiver sets
Preparation controller 3,2# cold source equipment controller 4, information acquisition module 5 communication connect RS485 hub 2, described RS485
Hub 2 communication connects master controller 1.
When central air conditioner system load changes, the chilled water system of information acquisition module 5 collection and cooling water system
Operation information, 1# cold source equipment controller 3 gathers the operation information of 1# cold source equipment 11,2# cold source equipment controller
4 operation informations gathering 2# cold source equipment 12.
Passing information to master controller 1 by RS485 hub 2, master controller 1 is efficient according to central air conditioner cold source
Coupling integrated approach, after being computed, by cold source equipment (11,12) start and stop and the butterfly valve that links accordingly (13,14) thereof
Instruction is handed down to 1# cold source equipment controller 3 and 2# cold source equipment controller 4 by RS485 hub 2.1# low-temperature receiver
Instruction is exported to the startup control of corresponding cold source equipment (11,12) by device controller 3 and 2# cold source equipment controller 4
Cabinet processed (23,25) and linkage butterfly valve (13,14) thereof.
The embodiment of the present invention also provides for a kind of control method based on described central air conditioner cold source efficient matchings integrating device,
Comprise the steps of
Step A: set the start and stop of some cold source equipments sequentially: the start and stop order basis of design economy principle of cold source equipment,
According under different load, the expense of specific refrigerating effect consumption is ranked up.
First, the variety of energy sources (electricity, combustion gas, steam and hot water etc.) consumed according to cold source equipment, the energy making land used
Source price (if waste hot steam, used heat hot water, energy prices are equivalent to 0), the average operating efficiency of cold source equipment, meter
Calculate under specific refrigerating effect, the average operating cost that each cold source equipment is consumed；What specifically every cold source equipment was consumed is flat
All expenses are calculated as follows:
1) different cold source equipments are at the energy consumption of specific refrigerating effect 1kW, the i.e. inverse of average operating efficiency；
2) power consumption values of different cold source equipments is multiplied by respectively the energy prices of correspondence, it is thus achieved that needed for specific refrigerating effect 1kW
The average cost consumed；
Secondly, according to the variation tendency of one day internal loading, interval at corresponding load, by utilizing different cold source equipment to disappear
The sequence of consumption What are your rates, sets the collocation of different capabilities cold source equipment and runs；
In the What are your rates sequence consumed finally according to each cold source equipment specific refrigerating effect and different load interval, if dry and cold
The collocating principle of source device, determines the sequencing of the start and stop of cold source equipment.
Step B: the load factor of some cold source equipments sets: according to the Real-time Load value of air conditioning system, utilize each low-temperature receiver
The corresponding linkage butterfly valve of equipment carries out burden apportionment to the some cold source equipments run, it is ensured that if current operation is dry and cold
The real time execution efficiency of source device is high.Specifically the setting of the load factor of every cold source equipment is as follows:
First, according to some cold source equipments at design conditions (i.e. chilled water supply water temperature 7 DEG C and cooling water supply temperature
32 DEG C) under, the efficiency curve under different loads rate, calculate a certain rate of load condensate (operating load/some cold source equipments total
Refrigerating capacity, takes 10 groups, and 10%, 20%, 30%～100%) under, it is real-time that some cold source equipment different loads rates are arranged in pairs or groups
Operational efficiency, then, therefrom choose that real time execution efficiency is the highest one group.Finally, different load rate (totally 10 is recorded
Group) time, the cold source equipment load factor collocation of the highest real time execution efficiency.
Owing to when actual motion, the cold source equipment most of the time all operates in off-design behaviour, it valid value can deviate and set
Meter can valid value；Even in off-design behaviour, the shape of efficiency curve is also basically identical with the efficiency curve under design conditions.
So it is believed that in off-design behaviour, under a certain rate of load condensate, by the load of some cold source equipments that design conditions set
Rate collocation also will obtain the highest real time execution efficiency.
Step C: preset chilled water return water temperature: divided by air conditioning system service window, and to each period
Return water temperature preset.Due to different building types, the use of air-conditioning requires difference, if can be according to following
Dry condition is set:
1) when outdoor environment temperature is less than 26 DEG C, and building uses area people flowing the most intensive, is carried by return water temperature
It is raised to more than 14 DEG C；
2) when air conditioning system rate of load condensate is less than 50%, and building uses region without forcing dehumidification requirements, is carried by return water temperature
It is raised to more than 14 DEG C；
Concrete return water temperature sets, and can preset according to building type, managerial experiences, repair in actual motion
Change.By suitable raising return water temperature, reach to improve cold source equipment evaporating temperature (supply water temperature and return water temperature flat
Average) requirement.Owing to the operational energy efficiency of cold source equipment improves along with the raising of evaporating temperature, thus improve backwater temperature
Degree, is also correspondingly improved the operational energy efficiency of each cold source equipment.
Step D: adaptive fuzzy PREDICTIVE CONTROL: be to realize under different load, the actual negative of some cold source equipments
Load rate and return water temperature actual value can meet setting requirement.Adaptive fuzzy PREDICTIVE CONTROL specifically include determine model structure and
PREDICTIVE CONTROL table correction:
1) model structure is determined: utilize fuzzy survey to distinguish system approach, control input chilled water according to the cold source equipment run
Return water temperature deviation U and output chilled-water flow Y data survey the model structure of the system of distinguishing；
First, by input, output valve obfuscation: the data will input, exported are converted into the fuzzy set of correspondence；
Secondly, setting model structure is [U (t-m), Y (t-n), Y (t)], i.e. affects two factors of t chilled-water flow Y
Chilled water return water temperature deviation and the chilled-water flow in t-n moment for the t-m moment.
Finally, utilize historical data, under different m, n value of statistics, Y (t) and U (t-m), Y (t) and the association feelings of Y (t-n)
Condition.By setting up contingency table and the contingency table of Y (t) and Y (t-n) of Y (t) and U (t-m), the wherein pass of Y (t) and U (t-m)
In connection table, first trip is the fuzzy set of Y (t), and first is the fuzzy set of U (t-m), if the same rule calculating number of statistics is basic
Occur on the diagonal of contingency table, then it represents that closely, m value is desired value in association；The wherein pass of Y (t) and Y (t-n)
In connection table, first trip is the fuzzy set of Y (t), and first is the fuzzy set of Y (t-n), if the same rule calculating number of statistics is basic
Occur on the diagonal of contingency table, then it represents that closely, n value is desired value in association.
2) PREDICTIVE CONTROL table correction: utilize the above-mentioned m tried to achieve, n value, can obtain 1 initial Fuzzy Predictive Control table.
Wherein fuzzy control table first trip is the fuzzy set of Y (t-n), and first is the fuzzy set of U (t-m), and in table, its residual value is corresponding
Y (t-n), U (t-m), the fuzzy set of predictive value Y (t) exported.In actual applications, it is not equal to predictive value when measured value
Y (t), i.e. needs to utilize measured value that initial fuzzy control table is carried out adaptive correction.By measured value is transformed into mould
Stick with paste domain, and replace Y (t) value in initial fuzzy control table, form new PREDICTIVE CONTROL table.And utilize this fuzzy pre-
The chilled-water flow of t is controlled by observing and controlling tabulation, it is ensured that under different load, the actual loading of some cold source equipments
Rate and return water temperature actual value can meet setting requirement.
The above is only the preferred embodiment of the present invention, it is noted that for those skilled in the art
For, on the premise of without departing from the technology of the present invention principle, it is also possible to make some improvements and modifications, these improve and profit
Decorations also should be regarded as protection scope of the present invention.
Claims (4)
1. a central air conditioner cold source efficient matchings integrating device, including a rack, it is characterised in that described rack
On be provided with master controller, RS485 hub, multiple cold source equipment controller, multiple information acquisition module, air break
Road device and DC source；Described master controller passes through RS485 hub and cold source equipment controller, information acquisition module phase
Even；Described air-break is through DC source and RS485 hub, multiple cold source equipment controller, multiple information gathering
Module is connected；
Described information acquisition module input port includes platinum resistance input port, analog input port and PORT COM；Its
Middle platinum resistance input port passes with the water temperature being arranged on the chilled water feed pipe of cold source equipment, water main, return main
Cooling-water temperature sensor on sensor and cooling water house steward, return main is connected, for gathering the cold of each cold source equipment
Freeze water supply and return water temperature, cooling water supply and return water temperature information；Analog input port be arranged on chilled water return main with
And the effusion meter on cooling water return main is connected, it is used for gathering the freezing water yield and cooling water inflow information；
Described cold source equipment controller input port includes digital quantity input port and analog input port, wherein digital quantity
Input port starts switch board with corresponding cold source equipment and ammeter is connected, and is used for gathering cold source equipment start and stop information and electricity
Information；Analog input port is connected with the linkage butterfly valve installed on corresponding cold source equipment chilled water return pipe, is used for adopting
The opening information of collection linkage butterfly valve；
Described cold source equipment controller output port includes digital output port and analog output port, wherein digital quantity
Output port is connected with the startup switch board of the control signal lamp on rack and cold source equipment, for the control letter on rack
The operation of signal lamp output cold source equipment or faulting instruction, export to the startup switch board of cold source equipment and open or stop instruction；Simulation
Amount output port is connected with the linkage butterfly valve installed on the chilled water return pipe of corresponding cold source equipment, for linkage butterfly valve
Output opening degree instruction.
2. according to the central air conditioner cold source efficient matchings integrating device described in claim 1, it is characterised in that described
Connecting terminal block and socket it is also equipped with on rack.
3. a control method based on the central air conditioner cold source efficient matchings integrating device described in claim 1, its
It is characterised by, comprises the steps of
Step A: set the start and stop of some cold source equipments sequentially: the start and stop order basis of design economy principle of cold source equipment,
According under different load, the expense of specific refrigerating effect consumption is ranked up；
First, the variety of energy sources consumed according to cold source equipment, the average operation making the energy prices of land used, cold source equipment
Efficiency, under unit of account refrigerating capacity, the average operating cost that each cold source equipment is consumed；Specifically every cold source equipment institute
The average cost consumed is calculated as follows:
1) the different cold source equipment energy consumption at specific refrigerating effect 1kW, the i.e. inverse of average operating efficiency are calculated；
2) power consumption values of different cold source equipments is multiplied by respectively the energy prices of correspondence, it is thus achieved that needed for specific refrigerating effect 1kW
The average cost consumed；
Secondly, according to the variation tendency of one day internal loading, interval at corresponding load, by utilizing different cold source equipment to disappear
The sequence of consumption What are your rates, sets the collocation of different capabilities cold source equipment and runs；
In the What are your rates sequence consumed finally according to each cold source equipment specific refrigerating effect and different load interval, if dry and cold
The collocating principle of source device, determines the sequencing of the start and stop of cold source equipment；
Step B: the load factor of some cold source equipments sets: according to the Real-time Load value of air conditioning system, utilize each low-temperature receiver
The linkage butterfly valve that equipment is corresponding carries out burden apportionment to the some cold source equipments run, it is ensured that some cold source equipments real-time
Operational efficiency meets claimed below；The setting of the load factor of described every cold source equipment is as follows:
First, according to some cold source equipments in the design conditions of chilled water supply water temperature 7 DEG C He cooling water supply temperature 32 DEG C
Under, the efficiency curve under different loads rate, calculate in rate of load condensate is 10%～100% in the case of a certain value, some low-temperature receivers
The real time execution efficiency of equipment different loads rate collocation；
Then, select from some cold source equipments of above-mentioned different loads rate that real time execution efficiency is the highest one group；
Finally, when recording different load rate, the cold source equipment load factor collocation of the highest real time execution efficiency；
Step C: preset chilled water return water temperature: divided by air conditioning system service window, and to each period
Return water temperature preset；For the comfort air conditioning system in building, it is set according to following condition:
1) when outdoor environment temperature is less than 26 DEG C, return water temperature is risen to more than 14 DEG C；
2) when air conditioning system rate of load condensate is less than 50%, return water temperature is risen to more than 14 DEG C；
Step D: adaptive fuzzy PREDICTIVE CONTROL: be to realize under different load, the actual negative of some cold source equipments
Load rate and return water temperature actual value can meet setting requirement；Adaptive fuzzy PREDICTIVE CONTROL specifically include determine model structure and
PREDICTIVE CONTROL table correction:
1) model structure is determined: utilize fuzzy survey to distinguish system approach, control input chilled water according to the cold source equipment run
Return water temperature deviation U and output chilled-water flow Y data survey the model structure of the system of distinguishing；
First, by input, output valve obfuscation: the data will input, exported are converted into the fuzzy set of correspondence；
Secondly, setting model structure is [U (t-m), Y (t-n), Y (t)], i.e. affects two factors of t chilled-water flow Y
Chilled water return water temperature deviation U (t-m) and the chilled-water flow Y in t-n moment (t-n) for the t-m moment；
Wherein, the unit symbol of moment t, m, n is s, and cold source equipment controls input chilled water return water temperature deviation U
Unit symbol is K, and the unit symbol of output chilled-water flow Y is m3/h；
Finally, utilize historical data, under different m, n value of statistics, Y (t) and U (t-m), Y (t) and the association feelings of Y (t-n)
Condition；By setting up contingency table and the contingency table of Y (t) and Y (t-n) of Y (t) and U (t-m), the wherein pass of Y (t) and U (t-m)
In connection table, first trip is the fuzzy set of Y (t), and first is the fuzzy set of U (t-m), if the same rule calculating number 85% of statistics
Appear above on the diagonal of contingency table, then it represents that closely, m value is desired value in association；Wherein Y (t) and Y (t-n)
Contingency table in first trip be the fuzzy set of Y (t), first is the fuzzy set of Y (t-n), if statistics same rule calculating number
85% appears above on the diagonal of contingency table, then it represents that closely, n value is desired value in association；
2) PREDICTIVE CONTROL table correction: utilize the above-mentioned m tried to achieve, n value, it is thus achieved that 1 initial Fuzzy Predictive Control table；
The wherein fuzzy set of Fuzzy Predictive Control heading behavior Y (t-n), first is the fuzzy set of U (t-m), and in table, its residual value is right
Answer Y (t-n), U (t-m), the fuzzy set of predictive value Y (t) exported.
4. according to the control method described in claim 3, it is characterised in that described rate of load condensate is that air conditioning system is run
The ratio of the overall refrigerating effect of load and some cold source equipments.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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| CN107843036B (en) * | 2017-09-21 | 2020-10-16 | 江苏中澜威远控制工程有限公司 | Refrigerating unit most energy-saving control method and equipment based on big data management |
| CN110553351B (en) * | 2019-09-06 | 2020-08-11 | 珠海格力电器股份有限公司 | Optimization method of air conditioner equipment load rate and air conditioner cloud group control system |
| CN112665153A (en) * | 2020-12-24 | 2021-04-16 | 珠海格力电器股份有限公司 | Control method and device for cooling capacity of refrigerating system, controller and refrigerating system |
| CN114278975A (en) * | 2021-12-27 | 2022-04-05 | 青岛海信日立空调系统有限公司 | Water multi-connected system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1869532A (en) * | 2006-04-25 | 2006-11-29 | 广州市地下铁道总公司 | Automatic control method for central cold supply system |
| CN101769586A (en) * | 2010-02-04 | 2010-07-07 | 无锡永信能源科技有限公司 | Cold (warm) water circulation energy efficiency control method and cold (warm) water circulation energy efficiency control device for central air-conditioning system |
| CN103277875A (en) * | 2013-06-21 | 2013-09-04 | 上海能誉科技发展有限公司 | Energy-saving control system for refrigeration plant room |
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| JPH109644A (en) * | 1996-06-25 | 1998-01-16 | Hitachi Ltd | Air conditioner |
| JP2002213800A (en) * | 2001-01-19 | 2002-07-31 | Fujitsu General Ltd | Multi-room air conditioner and its inspection method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1869532A (en) * | 2006-04-25 | 2006-11-29 | 广州市地下铁道总公司 | Automatic control method for central cold supply system |
| CN101769586A (en) * | 2010-02-04 | 2010-07-07 | 无锡永信能源科技有限公司 | Cold (warm) water circulation energy efficiency control method and cold (warm) water circulation energy efficiency control device for central air-conditioning system |
| CN103277875A (en) * | 2013-06-21 | 2013-09-04 | 上海能誉科技发展有限公司 | Energy-saving control system for refrigeration plant room |
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Denomination of invention: An efficient matching integrated device for cold source of central air conditioner and its control method Effective date of registration: 20220412 Granted publication date: 20160928 Pledgee: China Minsheng Banking Corp Hangzhou branch Pledgor: HANG ZHOU ZETA TECHNOLOGY Co. LTS Registration number: Y2022330000506 |
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Denomination of invention: A high-efficiency matching integrated device for central air conditioning cold source and its control method Effective date of registration: 20230726 Granted publication date: 20160928 Pledgee: China Minsheng Banking Corp Hangzhou branch Pledgor: HANG ZHOU ZETA TECHNOLOGY Co. LTS Registration number: Y2023330001583 |