CN106765911B - Control method and device of central air-conditioning cooler and controller - Google Patents
Control method and device of central air-conditioning cooler and controller Download PDFInfo
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- CN106765911B CN106765911B CN201611110683.1A CN201611110683A CN106765911B CN 106765911 B CN106765911 B CN 106765911B CN 201611110683 A CN201611110683 A CN 201611110683A CN 106765911 B CN106765911 B CN 106765911B
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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
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—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
- F24F11/46—Improving electric energy efficiency or saving
-
- 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
- F24F11/50—Control or safety arrangements characterised by user interfaces or communication
- F24F11/54—Control or safety arrangements characterised by user interfaces or communication using one central controller connected to several sub-controllers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
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- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Signal Processing (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The embodiment of the invention discloses a control method, a device and a controller of a central air-conditioning cooler. The method comprises the following steps: updating the comprehensive operation parameters according to the self operation parameters and the comprehensive operation parameters, and setting and storing the working state; sending the updated comprehensive operation parameters to a downstream first controller, so that the downstream controller updates and sets again according to the updated comprehensive operation parameters and stores the working state until the updated comprehensive operation parameters meet preset operation conditions, and sending operation information to the upstream controller; and after receiving the preset time of the running information, controlling the running of the cold machine according to the stored working state. The technical scheme provided by the embodiment of the invention realizes the decoupling control of each cold machine in the central air-conditioning system, achieves the purpose of universal development of the control program of the cold machine, and simultaneously ensures the timely effectiveness of the cold supply at the tail end and the comfort of a room at the tail end.
Description
Technical field
The present embodiments relate to technical field of central air more particularly to a kind of control method of central air-conditioning cold,
Device and controller.
Background technique
Cooling supply is carried out using cold in computer room in Large Central Air Conditioning System system.According to the size of cooling needs, usually have
More identical cold or cold of different sizes are connected in parallel, and adjust semen donors by controlling the unlatching number of units of cold,
To meet system end refrigeration requirement.
The energy consumption of air-conditioning system accounts for the half or so of whole building energy consumption, and cold is the energy consumption rich and influential family of entire computer room, is accounted for
Entire energy consumption of machine room more than half, therefore the fractional energy savings of cold is the important indicator for influencing building energy conservation.Center used at present
Control system is all the group control system of centralization, central controller decision cold, water pump, cooling tower, water valve in whole system
Deng open state and mutually adjust.Control of the centralized group control system to cold, generally refers to certain condition, judge be
System just increases a cold after reaching a certain condition, judges to be shut off a cold after system reaches certain another condition.
The control of above-mentioned centralization is that the configuration mode of cold is written in central controller in advance, in different cold number of units
And there are when size cold, needing to change central controller to the control program of cold, lead to the controller of this centralization
It can not be common in a variety of different central air conditioner systems.And due to the hysteresis quality of comprehensive pipe network time, so that centerized fusion
The end comfort of cold is poor.
Summary of the invention
The embodiment of the present invention provides control method, device and the controller of a kind of central air-conditioning cold, to improve cold
In end while cooling supply comfort, the versatility of enhancing controller control program.
In a first aspect, the embodiment of the invention provides a kind of control methods of central air-conditioning cold, this method comprises:
Integrated operation parameter is updated according to self-operating parameter and integrated operation parameter, is arranged and stores working condition；
Downstream the first controller sends the updated integrated operation parameter, so that downstream controller is according to
Integrated operation parameter is updated again and is arranged and stores working condition after update, until integrated operation parameter after the update
Meet preset operating conditions, upstream controller sends operation information；
After receiving the operation information preset duration, run according to the working state control cold of the storage.
Second aspect, the embodiment of the invention also provides a kind of control device of central air-conditioning cold, which includes:
Integrated operation parameter updating module, for updating integrated operation ginseng according to self-operating parameter and integrated operation parameter
Number, is arranged and stores working condition；
Integrated operation parameter sending module sends the updated integrated operation ginseng for downstream the first controller
Number, so that downstream controller is updated again according to integrated operation parameter after the update and is arranged and stores work shape
State, until integrated operation parameter meets preset operating conditions after the update, upstream controller sends operation information；
Cold operation control module, for after receiving the operation information preset duration, according to the work of the storage
Make state control refrigerator operation.
The third aspect, the embodiment of the invention also provides a kind of controller, which includes that the embodiment of the present invention provides
Central air-conditioning cold control device.
The control method of central air-conditioning cold provided in an embodiment of the present invention, by according to self-operating parameter and comprehensive fortune
Row parameter updates integrated operation parameter, is arranged and stores working condition；Downstream the first controller is sent described updated comprehensive
Operating parameter is closed, so that downstream controller is updated again according to integrated operation parameter after the update and is arranged and stores
Working condition, until integrated operation parameter meets preset operating conditions after the update, upstream controller sends operation information；
After receiving the operation information preset duration, run according to the working state control cold of the storage.Realize center
The decoupling control of each cold in air-conditioning system has achieved the purpose that cold control program generalization exploitation, while ensure that end
The timely and effective property of cooling supply and the comfort in end room.
Detailed description of the invention
To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment
Attached drawing does one and simply introduces, it should be apparent that, drawings in the following description are some embodiments of the invention, for this
For the those of ordinary skill of field, without creative efforts, it can also be obtained according to these attached drawings others
Attached drawing.
Fig. 1 is a kind of control method flow chart for central air-conditioning cold that the embodiment of the present invention one provides；
Fig. 2 is the stream of integrated operation parameter transmitting in the control method for the central air-conditioning cold that the embodiment of the present invention one provides
Journey schematic diagram；
Fig. 3 is a kind of control method flow chart of central air-conditioning cold provided by Embodiment 2 of the present invention；
Fig. 4 is a kind of control method flow chart for central air-conditioning cold that the embodiment of the present invention three provides；
Fig. 5 is a kind of structural schematic diagram of the control device for central air-conditioning cold that the embodiment of the present invention four provides.
Specific embodiment
The present invention is described in further detail with reference to the accompanying drawings and examples.It is understood that this place is retouched
The specific embodiment stated is used only for explaining the present invention rather than limiting the invention.It also should be noted that in order to just
Only the parts related to the present invention are shown in description, attached drawing rather than entire infrastructure.
Embodiment one
Fig. 1 is a kind of control method flow chart for central air-conditioning cold that the embodiment of the present invention one provides, and the present embodiment can
For the control of central air-conditioning cold operating status, this method can be executed by the control device of central air-conditioning cold, the device
It can be realized by the mode of software and/or hardware, which, which can integrate, in any provide there is central air-conditioning cold to run shape
In the controller of state control function.
Referring to Fig. 1, the control method of the central air-conditioning cold, comprising:
S110, integrated operation parameter is updated according to self-operating parameter and integrated operation parameter, is arranged and stores work shape
State.
In the present embodiment, the control method of central air-conditioning cold is realized based on formation internet between more cold
's.It include an at least cold in central air conditioner system, wherein specific restriction is not done to the quantity of cold, every cold is big
It is small to may be the same or different.Every cold has the operating parameter of itself, and self-operating parameter includes: refrigerating capacity, function
The performance parameter that the cold such as rate, rate of load condensate and rated cooling capacity have itself.Integrated operation parameter can be prediction refrigeration requirement
And general power.Integrated operation parameter is the amount that variation is constantly updated with cold self-operating parameter.Optionally, it is described from
Body operating parameter includes: refrigerating capacity, and the integrated operation parameter includes: prediction refrigeration requirement；Correspondingly, described transport according to itself
Row parameter and integrated operation parameter update integrated operation parameter, are arranged and store working condition, comprising: are greater than in the refrigerating capacity
When the prediction refrigeration requirement, original prediction refrigeration requirement is kept, be arranged and stores working condition to close；In the refrigerating capacity
When no more than the prediction refrigeration requirement, the difference for predicting refrigeration requirement and refrigerating capacity is updated to prediction refrigeration requirement, setting
And working condition is stored to open.Illustratively, the refrigerating capacity of cold A is 1000-2000kW, the i.e. maximum cooling capacity of cold A
For 2000kW, minimum refrigerating capacity is 1000kW.When the prediction refrigeration requirement for being transferred to cold A is 3500kW, it is arranged and stores
The working condition of cold A is to open, and freezed with maximum refrigerating capacity 2000kW, while prediction refrigeration requirement being updated to
1500kW, and updated prediction refrigeration requirement is passed into next cold.When the prediction refrigeration requirement for being transferred to cold A is
When 800kW, because the minimum refrigerating capacity of cold A is 1000kW, it is unable to satisfy prediction refrigeration requirement, is arranged and stores cold A's
Working condition is to close, to realize the purpose of energy saving.And original prediction refrigeration requirement is passed into next cold.
S120, downstream the first controller send the updated integrated operation parameter, so that downstream controller root
Working condition is updated and is arranged and stores again according to integrated operation parameter after the update, until comprehensive fortune after the update
Row parameter meets preset operating conditions, and upstream controller sends operation information.
In the present embodiment, the first controller of downstream can be a priority level lower than itself cold cold it is corresponding
Controller.Illustratively, Fig. 2 is integrated operation parameter transmitting in the control method of central air-conditioning cold provided in this embodiment
Flow diagram.As shown in Fig. 2, sharing N platform cold, cold A, cold B, cold C, cold D, cold in central air conditioner system
E ... cold N forms a cold module, and cold total quantity is N, and N is any positive integer, and N can be 1, can be 2, can
To be 7,8,9.It sends and updates since cold A and calculate integrated operation parameter.Cold A is according to itself operating parameter and input
Integrated operation parameter, calculate whether itself opens, be arranged and store the working condition of itself, and update integrated operation parameter.
Updated integrated operation parameter is sent to cold B simultaneously, cold B is transmitted more according to itself operating parameter and cold A
Integrated operation parameter after new, calculates whether itself opens, is arranged and stores the working condition of itself, and updates comprehensive fortune again
Row parameter.The integrated operation parameter updated again is sent to cold C, according to the above-mentioned such circulating transfer of rule.Every cold
After updating integrated operation parameter, judge whether updated integrated operation parameter meets preset operating conditions, until after updating
Until integrated operation parameter meets preset operating conditions, and upstream the controller of cold sends operation information.Wherein, item is preset
Part be update after prediction refrigeration requirement between default convergency value and 0 interval range in.Default convergency value presets for user
A good cooling capacity value, for characterizing the minimum cooling capacity for meeting refrigeration effect.Default convergency value is smaller, cold in central air conditioner system
Cooling supply effect it is better.Refrigeration requirement is predicted after update closer to O, when each cold is run by the state of storage, closer to just
Begin prediction refrigeration requirement value, and refrigeration performance is better, and end room cooling supply more can be close to actual demand, and the comfort level in room is got over
It is high.
S130, after receiving the operation information preset duration, according to the storage working state control cold transport
Row.
In the present embodiment, pipe network has time-lag effect, illustratively, in certain hot summer, on certain office block
Noon, 8 demand refrigerating capacitys were 7000KW, but often due to pipe network time-lag effect, eight thirty of the morning can be only achieved demand system
Cooling capacity, so that user's comfort is poor.In order to reach more preferable comfort, refrigeration requirement is predicted with end load to be regulated and controled.
If pipe network lag time is t=20min, the load prediction refrigeration requirement value of same day 10:00 is 7000kW, then each cold
By in 9:40 by the prediction refrigeration requirement received be 7000kW when, each cold according to storage working state control cold
Operation, so that reaching the 7000kW refrigerating capacity of forecast demand after pipe network system operation 20min.
The control method of central air-conditioning cold provided in this embodiment, by according to self-operating parameter and integrated operation ginseng
Number updates integrated operation parameter, is arranged and stores working condition；Downstream the first controller sends the updated comprehensive fortune
Row parameter, so that downstream controller is updated again according to integrated operation parameter after the update and is arranged and stores work
State, until integrated operation parameter meets preset operating conditions after the update, upstream controller sends operation information；It is connecing
After receiving the operation information preset duration, run according to the working state control cold of the storage.Realize central air-conditioning
The decoupling control of each cold in system has achieved the purpose that cold control program generalization exploitation, while ensure that end cooling supply
Timely and effective property and end room comfort.
Embodiment two
Fig. 3 is the control method flow chart of central air-conditioning cold provided by Embodiment 2 of the present invention, and the present embodiment is above-mentioned
On the basis of embodiment, to described the step for integrated operation parameter is updated according to self-operating parameter and integrated operation parameter into
It has gone optimization: having obtained itself current priority；When itself is the first priority, the integrated operation parameter of input, root are received
Integrated operation parameter is updated according to self-operating parameter and the integrated operation parameter of the input；When itself is other priority,
The integrated operation parameter that the first controller of upstream is sent is received, according to the integrated operation parameter of self-operating parameter and the input
Update integrated operation parameter.
Referring to Fig. 3, the control method of the central air-conditioning cold, comprising:
S310, itself current priority is obtained.
In the present embodiment, every cold has the priority of itself, and each priority only corresponds to a cold.
In the control method of central air-conditioning cold, integrated operation parameter is to update transmitting by the sequencing of the priority of every cold
's.In a central air conditioner system, the priority of each cold can be determined by following combined factors: cold is current to be opened
Off-mode, the priority of external setting-up, the height of cold performance and cold accumulated running time.What each cold priority calculated
Criterion: the cold that a. opens preferentially remains on, and the cold that close preferentially keeps off status；B. external setting-up priority is high
Cold is first opened, and the low cold of external setting-up priority is first closed；C. the high cold of performance is preferentially opened, and the low cold of performance is excellent
First close；D. accumulated running time shortest cold is preferentially opened, and the longest cold of cold runing time is preferentially closed.Each cold
The sequencing for the criterion that priority calculates is a > b > c > d.Specifically, the priority of cold is indicated with Arabic numerals, number
It is smaller, indicate that the priority of cold is higher.Illustratively, the priority of cold A is 1, and the priority of cold B is 2, then cold A
Priority be higher than the priority of cold B.According to the priority of above-mentioned setting, each controller can be by reading setting
Priority, obtains the priority of itself, and then may be implemented to realize identical refrigeration effect by the smallest energy consumption.
S330, itself be the first priority when, the integrated operation parameter of input is received, according to self-operating parameter and institute
The integrated operation parameter for stating input updates integrated operation parameter.
In the present embodiment, all controllers all set same program, include at least two-part operation in program
Component, one of them is the first priority budget component, and another is then other priority arithmetic components, is getting priority
Afterwards, it is selected to enter the progress operation of corresponding component according to the priority of acquisition.
After outside delivers prediction refrigeration requirement value, every cold receives prediction refrigeration requirement in central air conditioner system.
According to the own priority of acquisition, the integrated operation parameter of input is received by the cold of the first priority, that is, is received external
The prediction refrigeration requirement of transmitting.The cold of first priority is cold according to the operating parameter of itself and the received external prediction transmitted
Amount demand judges the working condition of itself, that is, opens or close.Illustratively, when the maximum system of the cold of the first priority
When cooling capacity is greater than the received external prediction refrigeration requirement transmitted, it is arranged and the cold for storing the first priority is in off state,
And keep original cold predicted refrigeration requirement and pass to the second priority；It is connect when the refrigerating capacity of the cold of the first priority is less than
When the external prediction refrigeration requirement transmitted of receipts, it is arranged and the cold for storing the first priority is open state, and will predict cold
The difference of the refrigerating capacity of the cold of amount demand and the first priority is and cold by updated prediction as new prediction refrigeration requirement
Amount demand passes to the cold of the second priority.Wherein, the difference of the refrigerating capacity of the cold of prediction refrigeration requirement and the first priority
When value is that the cold of the first priority is opened, other cold need the remaining refrigerating capacity met.
S330, itself be other priority when, receive the first controller of upstream send integrated operation parameter, according to from
Body operating parameter and the integrated operation parameter of the input update integrated operation parameter.
When the priority of cold is not or not first priority, the synthesis that cold more higher leveled than own priority is sent is received
Operating parameter, and according to the operating parameter of itself and received integrated operation parameter, judge the working condition of itself, that is, opens also
It is to close.It is arranged and stores working condition, and updates integrated operation parameter.Illustratively, the cold of third priority receives the
The integrated operation parameter of the cold transmitting of two priority, the integrated operation parameter may include remaining refrigerating capacity.When third is excellent
When the refrigerating capacity of the cold of first grade is greater than remaining refrigerating capacity, the working condition for being arranged and storing the cold of third priority is closed,
And remaining refrigerating capacity is remained unchanged to the cold for passing to the 4th priority；When the refrigerating capacity of the cold of third priority is not more than
When remaining refrigerating capacity, the working condition for being arranged and storing the cold of third priority is opened, and remaining refrigerating capacity and third is excellent
The difference of the refrigerating capacity of the cold of first grade passes to the cold of the 4th priority as integrated operation parameter.Next cold is according to biography
Progressive next integrated operation parameter carries out relevant calculation, and calculated result is equally passed to again next cold after the completion.
S340, downstream the first controller send the updated integrated operation parameter, so that downstream controller root
Working condition is updated and is arranged and stores again according to integrated operation parameter after the update, until comprehensive fortune after the update
Row parameter meets preset operating conditions, and upstream controller sends operation information.
S350, after receiving the operation information preset duration, according to the storage working state control cold transport
Row.
The control method of central air-conditioning cold provided in this embodiment, by the difference according to own priority, according to certainly
Body operating parameter and integrated operation parameter update integrated operation parameter, realize the decoupling control of each cold in central air conditioner system
System, has effectively reached the optimum control between each cold.
In a preferred embodiment of the present embodiment, the self-operating parameter includes own power, the synthesis
Operating parameter further include: general power；Correspondingly, described update according to self-operating parameter and the integrated operation parameter of the input
Integrated operation parameter, further includes: general power is updated according to own power and the general power of the input；Correspondingly, described upward
It swims controller and sends operation information, further includes: send updated general power to the first priority controller and finally predict cold
Amount demand.
Cold self-operating parameter includes own power, wherein own power is when cold is arranged and is stored as open state
When, cold generates the electric power value that the refrigerating capacity of setting needs to consume, it is understood that is that cold consumes such electrical power energy
Enough generate preset refrigeration effect.In central air conditioner system, the integrated operation parameter of the cold transmitting of each priority, including it is real-time
The prediction refrigeration requirement (remaining refrigerating capacity) and general power of update.Wherein, integrated operation parameter is transmitted in the cold of each priority
During, general power is the amount of a real-time update as remaining refrigerating capacity.Illustratively, in central air conditioner system,
Including four cold, respectively cold A, cold B, cold C and cold D, and the sequencing of cold priority is successively are as follows: cold
A > cold B > cold C > cold D.Wherein, the working condition of cold A and cold C are to open, and the working condition of cold B is to close,
Then passing to the general power in the integrated operation parameter of cold D is itself function that cold A and cold B generates that setting refrigerating capacity needs
The sum of rate.Integrated operation parameter meets preset condition after update, sends updated general power to the first priority controller,
So that user can check corresponding general power.
Optionally, after sending updated general power to the first priority controller, according to the work of the storage
Before state control refrigerator operation further include: when itself is the first priority, according to the updated general power that receives and
Final prediction refrigeration requirement calculates Energy Efficiency Ratio COP.Wherein, Energy Efficiency Ratio COP is the prediction refrigeration requirement value and satisfaction of external transmitting
The difference of final prediction refrigeration requirement when default convergency value and the ratio of updated general power.Energy Efficiency Ratio COP value is bigger, produces
The electrical power of raw preset cooling capacity consumption is fewer, and energy saving is higher.
The control method of central air-conditioning cold provided in this embodiment, by sending update to the first priority controller
After general power afterwards, according to increase step before the working state control cold operation of the storage: excellent for first at itself
When first grade, Energy Efficiency Ratio COP is calculated according to the updated general power received and final prediction refrigeration requirement, COP can be passed through
Value measures the height of the cold-supplying energy-saving performance of central air-conditioning cold.
Embodiment three
Fig. 4 is the control method flow chart for the central air-conditioning cold that the embodiment of the present invention three provides, and the present embodiment is above-mentioned
On the basis of embodiment, after calculating Energy Efficiency Ratio COP according to the updated general power received, according to the work of the storage
Make to increase following steps before state control refrigerator operation: rate of load condensate is lowered according to preset ratio, so that after according to downward
The corresponding COP being calculated of rate of load condensate meets default energy consumption and compares condition.And by the working state control according to the storage
Cold operation, it is specific to optimize are as follows: to be run according to the working state control cold of the corresponding storage of downward preload rate.
Referring to fig. 4, the control method of the central air-conditioning cold, comprising:
S410, itself current priority is obtained.
S420, when itself is the first priority, the integrated operation parameter of input is received, according to own power, maximum negative
The prediction refrigeration requirement of lotus rate, rated cooling capacity and the input updates prediction refrigeration requirement and general power, is arranged and stores work
Make state.
S430, itself be other priority when, receive the first controller of upstream send prediction refrigeration requirement and total work
Rate is updated according to the prediction refrigeration requirement and general power of own power, peak load rate, rated cooling capacity and the input and is predicted
Refrigeration requirement and general power are arranged and store working condition.
S440, downstream the first controller send the updated prediction refrigeration requirement and general power, so that downstream
Controller is according to predicting that refrigeration requirement is updated again and be arranged and store working condition after the update, until the update
Prediction refrigeration requirement meets preset operating conditions afterwards, sends updated general power and final prediction to the first priority controller
Refrigeration requirement.
S450, when itself is the first priority, according to the updated general power that receives and final prediction cooling capacity need
It asks and calculates Energy Efficiency Ratio COP.
S460, rate of load condensate is lowered according to preset ratio, so that according to the corresponding COP being calculated of afterload rate is lowered
Meet default energy consumption and compares condition.
In the present embodiment, rate of load condensate (load rate, LR) is the ratio between refrigerating capacity and cold rated cooling capacity of cold.
To the same cold, rated cooling capacity is fixed value, then rate of load condensate is bigger, and the refrigerating capacity that cold generates is more, refrigeration effect
Better.Rate of load condensate in the self-operating parameter of every cold includes a peak load rate (LRmax) and a minimum
Rate of load condensate (LRmin).For same refrigeration unit, identical refrigerating capacity can correspond to multiple rate of load condensates, and wherein some is negative
The corresponding energy consumption of lotus rate is minimum.By the method according to above-mentioned calculating COP, cycle calculations are in the condition for meeting the needs of refrigerating capacity
Under, the corresponding Energy Efficiency Ratio COP of each rate of load condensate, until COP meets default energy consumption and compares condition.The default energy consumption can be with than condition
It is set according to the concrete condition of cold unit.Illustratively, the optimal energy conservation effect of the cold unit can be determined according to test of many times
The corresponding COP range of fruit, can be using COP range as default energy consumption than condition, to realize optimal energy-efficient effect.
Illustratively, it when predicting that refrigeration requirement meets preset condition after update, is completed under current loads rate each
Cold transmitting calculates, and after total Energy Efficiency Ratio COP has been calculated, the rate of load condensate of all cold lowers rate of load condensate according to preset ratio,
And general power is re-started with the rate of load condensate after downward and predicts that the update of refrigeration requirement calculates, wherein the preset ratio is not
Greater than 10%.Preferably, the preset ratio is 5%.Above-mentioned adjustment ratio is chosen, it can be in reasonable calculated load and calculating
In time, the variable quantity of rate of load condensate is reduced as far as possible, avoids the mutation of COP value.It is pre- to predict that refrigeration requirement meets after update
If when service condition, rate of load condensate will be lowered according to preset ratio, and calculate by rate of load condensate on the basis of a upper rate of load condensate
The corresponding COP of current loads rate, until COP meets default energy consumption and compares condition.
S470, the working state control for meeting the storage more corresponding than condition of default energy consumption according to the COP being calculated are cold
Machine operation.
Corresponding rate of load condensate, the working condition stored according to each controller when meeting default energy consumption than condition according to COP
Corresponding cold work is controlled respectively, so that entire cold unit can be run under optimal energy-saving effect.
The control method of central air-conditioning cold provided in this embodiment, by lowering rate of load condensate according to preset ratio, with
So that comparing condition according to the corresponding default energy consumption of COP satisfaction being calculated of afterload rate is lowered；Correspondingly, being calculated according to described
The COP arrived meets the working state control cold operation of default energy consumption storage more corresponding than condition.Guaranteeing the comfortable of end room
Property while so that entire cold unit can be run under optimal energy-saving effect, substantially increase central air-conditioning cold
Energy-saving effect.
It is described according to the corresponding COP being calculated of downward afterload rate in a preferred embodiment of the present embodiment
Meet default energy consumption than condition, specific optimization are as follows: the corresponding COP being calculated of downward afterload rate, which is less than, lowers preload rate pair
The COP that should be calculated；Correspondingly, described meet the storage more corresponding than condition of default energy consumption according to the COP being calculated
The operation of working state control cold, it is specific to optimize are as follows: to be transported according to the working state control cold for lowering the corresponding storage of preload rate
Row.Because of the variation tendency according to the performance curve of cold, when the rate of load condensate of cold changes to minimum from maximum, the COP of cold
Value is first increases and then decreases, i.e., when downward trend occurs in total COP value, it is believed that the optimal performance of cold has been found
Point is not required to lower the subsequent COP calculating of rate of load condensate progress again, calculates transmitting terminate at this time.According to the downward preload rate pair
The working state control cold operation that should be stored.
Preferred embodiment provided in this embodiment makes to lower afterload by lowering rate of load condensate according to preset ratio
The corresponding COP being calculated of rate, which is less than, lowers the corresponding COP being calculated of preload rate；Correspondingly, being born according to before the downward
The working state control cold operation of the corresponding storage of lotus rate.While guaranteeing the comfort in end room, further improve
The energy-saving effect of central air-conditioning cold, the fractional energy savings of cold can be improved 10%, and especially in transition season, fractional energy savings be can be improved
25%.
Example IV
Fig. 5 is a kind of structural schematic diagram of the control device of central air-conditioning cold provided in an embodiment of the present invention, the device
It include: integrated operation parameter updating module 510, integrated operation parameter sending module 520 and cold operation control module 530, under
It is specifically described in face of each module.
The integrated operation parameter updating module 510, it is comprehensive for being updated according to self-operating parameter and integrated operation parameter
Operating parameter is closed, is arranged and stores working condition；
The integrated operation parameter sending module 520 sends the updated synthesis for downstream the first controller
Operating parameter, so that downstream controller is updated again according to integrated operation parameter after the update and is arranged and stores work
Make state, until integrated operation parameter meets preset operating conditions after the update, upstream controller sends operation information；
The cold operation control module 530, for being deposited according to described after receiving the operation information preset duration
The working state control cold of storage is run.
Optionally, the self-operating parameter includes: refrigerating capacity, and the integrated operation parameter includes: prediction refrigeration requirement；
Correspondingly, the integrated operation parameter updating module 510, is specifically used for:
When the refrigerating capacity is greater than the prediction refrigeration requirement, original prediction refrigeration requirement is kept, is arranged and stores work
Make state to close；
When the refrigerating capacity is not more than the prediction refrigeration requirement, the difference for predicting refrigeration requirement and refrigerating capacity is updated
To predict refrigeration requirement, being arranged and storing working condition to open.
Optionally, predict that refrigeration requirement meets preset operating conditions after the update, comprising:
After the update predict refrigeration requirement between default convergency value and 0 interval range in.
Optionally, the integrated operation parameter updating module 510, comprising:
Priority acquiring unit, for obtaining itself current priority；
First integrated operation parameter updates, for receiving the integrated operation parameter of input when itself is the first priority,
Integrated operation parameter is updated according to self-operating parameter and the integrated operation parameter of the input；
Second integrated operation parameter updates, for receiving the first controller of upstream and sending when itself is other priority
Integrated operation parameter, integrated operation parameter is updated according to self-operating parameter and the integrated operation parameter of the input.
Optionally, the self-operating parameter includes own power, the integrated operation parameter further include: general power；
Correspondingly, the integrated operation parameter updating module 510, further includes:
General power updating unit, for updating general power according to own power and the general power of the input；
Correspondingly, the integrated operation parameter sending module 520, is also used to:
Updated general power and final prediction refrigeration requirement are sent to the first priority controller.
Optionally, further includes:
Energy Efficiency Ratio COP computing module is used for after sending updated general power to the first priority controller, according to
It is updated according to what is received when itself is the first priority before the working state control cold operation of the storage
General power and final prediction refrigeration requirement calculate Energy Efficiency Ratio COP.
Optionally, the self-operating parameter includes: rate of load condensate and rated cooling capacity；
Correspondingly, the integrated operation parameter updating module 510, is specifically used for:
Refrigerating capacity is calculated according to rate of load condensate and rated cooling capacity；
Prediction refrigeration requirement is updated according to the refrigerating capacity.
Optionally, further includes:
Rate of load condensate lowers module, for after calculating Energy Efficiency Ratio COP according to the updated general power that receives, according to
Before the working state control cold operation of the storage, rate of load condensate is lowered according to preset ratio, so that after according to downward
The corresponding COP being calculated of rate of load condensate meets default energy consumption and compares condition；
Correspondingly, the cold operation control module 530, is specifically used for:
According to the working state control cold operation of the corresponding storage of downward preload rate.
It is optionally, described that condition is compared according to the corresponding default energy consumption of COP satisfaction being calculated of downward afterload rate, comprising:
It lowers the corresponding COP being calculated of afterload rate and is less than the corresponding COP being calculated of downward preload rate；
Correspondingly, the working condition for meeting the storage more corresponding than condition of default energy consumption according to the COP being calculated
Control refrigerator operation, comprising:
According to the working state control cold operation for lowering the corresponding storage of preload rate.
Optionally, the preset ratio is not more than 10%.
Optionally, the preset ratio is 5%.
The control device of central air-conditioning cold provided in an embodiment of the present invention, by according to self-operating parameter and comprehensive fortune
Row parameter updates integrated operation parameter, is arranged and stores working condition；Downstream the first controller is sent described updated comprehensive
Operating parameter is closed, so that downstream controller is updated again according to integrated operation parameter after the update and is arranged and stores
Working condition, until integrated operation parameter meets preset operating conditions after the update, upstream controller sends operation information；
After receiving the operation information preset duration, run according to the working state control cold of the storage.Realize center
The decoupling control of each cold in air-conditioning system has achieved the purpose that cold control program generalization exploitation, while ensure that end
The timely and effective property of cooling supply and the comfort in end room.
The control device of central air-conditioning cold provided by the embodiment of the present invention can be performed any embodiment of that present invention and be mentioned
The control method of the central air-conditioning cold of confession has the corresponding functional module of execution method and beneficial effect.
The embodiment of the invention also provides a kind of controller, which includes central air-conditioning provided in an embodiment of the present invention
Identical function may be implemented in the control device of cold, module having the same, and this will not be repeated here.
Note that the above is only a better embodiment of the present invention and the applied technical principle.It will be appreciated by those skilled in the art that
The invention is not limited to the specific embodiments described herein, be able to carry out for a person skilled in the art it is various it is apparent variation,
It readjusts and substitutes without departing from protection scope of the present invention.Therefore, although being carried out by above embodiments to the present invention
It is described in further detail, but the present invention is not limited to the above embodiments only, without departing from the inventive concept, also
It may include more other equivalent embodiments, and the scope of the invention is determined by the scope of the appended claims.
Claims (19)
1. a kind of control method of central air-conditioning cold characterized by comprising
Integrated operation parameter is updated according to self-operating parameter and integrated operation parameter, is arranged and stores working condition；
Downstream the first controller sends the updated integrated operation parameter, so that downstream controller is according to the update
Integrated operation parameter is updated again and is arranged and stores working condition afterwards, until integrated operation parameter meets after the update
Preset operating conditions, upstream controller sends operation information；
After receiving the operation information preset duration, run according to the working state control cold of the storage；
Wherein, the self-operating parameter is the performance parameter that cold itself has, comprising: refrigerating capacity, power, rate of load condensate and volume
Cooling capacity is customized, the integrated operation parameter includes: prediction refrigeration requirement and general power；
When the self-operating parameter is refrigerating capacity, the integrated operation parameter is prediction refrigeration requirement；
Correspondingly, described update integrated operation parameter according to self-operating parameter and integrated operation parameter, it is arranged and stores work
State, comprising:
When the refrigerating capacity is greater than the prediction refrigeration requirement, original prediction refrigeration requirement is kept, is arranged and stores work shape
State is to close；
When the refrigerating capacity is not more than the prediction refrigeration requirement, the difference for predicting refrigeration requirement and refrigerating capacity is updated to pre-
Refrigeration requirement is surveyed, be arranged and stores working condition to open；
Wherein, predict that refrigeration requirement meets preset operating conditions after the update, comprising:
After the update predict refrigeration requirement between default convergency value and 0 interval range in；Default convergency value is that user is preparatory
The cooling capacity value set, for characterizing the minimum cooling capacity for meeting refrigeration effect.
2. the method according to claim 1, wherein it is described according to self-operating parameter and integrated operation parameter more
New integrated operation parameter, comprising:
Obtain itself current priority；
When itself is the first priority, the integrated operation parameter of input is received, according to self-operating parameter and the input
Integrated operation parameter updates integrated operation parameter；
When itself is other priority, the integrated operation parameter that the first controller of upstream is sent is received, is joined according to self-operating
Several and the input integrated operation parameter updates integrated operation parameter.
3. according to the method described in claim 2, it is characterized in that, when the self-operating parameter be own power, it is described comprehensive
Conjunction operating parameter is general power；
Correspondingly, described update integrated operation parameter according to self-operating parameter and the integrated operation parameter of the input, also wrap
It includes:
General power is updated according to own power and the general power of the input；
Correspondingly, the upstream controller sends operation information, further includes:
Updated general power and final prediction refrigeration requirement are sent to the first priority controller.
4. according to the method described in claim 3, it is characterized in that, sending updated total work to the first priority controller
After rate, before the working state control cold operation of the storage further include:
When itself is the first priority, efficiency is calculated according to the updated general power received and final prediction refrigeration requirement
Compare COP.
5. according to the method described in claim 4, it is characterized in that, when the self-operating parameter is rate of load condensate and specified refrigeration
Amount；The integrated operation parameter is prediction refrigeration requirement；
Correspondingly, described update integrated operation parameter according to self-operating parameter and the integrated operation parameter of the input, comprising:
Refrigerating capacity is calculated according to rate of load condensate and rated cooling capacity；
Prediction refrigeration requirement is updated according to the refrigerating capacity.
6. according to the method described in claim 5, it is characterized in that, calculating efficiency according to the updated general power received
After COP, before the working state control cold operation of the storage further include:
Rate of load condensate is lowered according to preset ratio, so that default according to the corresponding COP satisfaction being calculated of afterload rate is lowered
Energy consumption compares condition；
Correspondingly, the working state control cold according to the storage is run, comprising:
Meet the working state control cold operation of default energy consumption storage more corresponding than condition according to the COP being calculated.
7. according to the method described in claim 6, it is characterized in that, described according to lowering, afterload rate is corresponding to be calculated
COP meets default energy consumption and compares condition, comprising:
It lowers the corresponding COP being calculated of afterload rate and is less than the corresponding COP being calculated of downward preload rate；
Correspondingly, the working state control for meeting the storage more corresponding than condition of default energy consumption according to the COP being calculated
Cold operation, comprising:
According to the working state control cold operation for lowering the corresponding storage of preload rate.
8. the method according to the description of claim 7 is characterized in that the preset ratio is not more than 10%.
9. according to the method described in claim 8, it is characterized in that, the preset ratio is 5%.
10. a kind of control device of central air-conditioning cold characterized by comprising
Integrated operation parameter updating module, for updating integrated operation parameter according to self-operating parameter and integrated operation parameter,
It is arranged and stores working condition；
Integrated operation parameter sending module sends the updated integrated operation parameter for downstream the first controller, with
So that downstream controller is updated again according to integrated operation parameter after the update and is arranged and stores working condition, until
Integrated operation parameter meets preset operating conditions after the update, and upstream controller sends operation information；
Cold operation control module, for after receiving the operation information preset duration, according to the work shape of the storage
State control refrigerator operation；
Wherein, the self-operating parameter is the performance parameter that cold itself has, comprising: refrigerating capacity, power, rate of load condensate and volume
Cooling capacity is customized, the integrated operation parameter includes: prediction refrigeration requirement and general power；
When the self-operating parameter is refrigerating capacity, the integrated operation parameter is prediction refrigeration requirement；
Correspondingly, the integrated operation parameter updating module, is specifically used for:
When the refrigerating capacity is greater than the prediction refrigeration requirement, original prediction refrigeration requirement is kept, is arranged and stores work shape
State is to close；
When the refrigerating capacity is not more than the prediction refrigeration requirement, the difference for predicting refrigeration requirement and refrigerating capacity is updated to pre-
Refrigeration requirement is surveyed, be arranged and stores working condition to open；
Wherein, predict that refrigeration requirement meets preset operating conditions after the update, comprising:
After the update predict refrigeration requirement between default convergency value and 0 interval range in；Default convergency value is that user is preparatory
The cooling capacity value set, for characterizing the minimum cooling capacity for meeting refrigeration effect.
11. device according to claim 10, which is characterized in that the integrated operation parameter updating module, comprising:
Priority acquiring unit, for obtaining itself current priority；
First integrated operation parameter updates, for receiving the integrated operation parameter of input when itself is the first priority, according to
Self-operating parameter and the integrated operation parameter of the input update integrated operation parameter；
Second integrated operation parameter updates, for receiving the comprehensive of the first controller of upstream transmission when itself is other priority
Operating parameter is closed, integrated operation parameter is updated according to self-operating parameter and the integrated operation parameter of the input.
12. device according to claim 11, which is characterized in that when the self-operating parameter be own power, it is described
Integrated operation parameter is general power；
Correspondingly, the integrated operation parameter updating module, further includes:
General power updating unit, for updating general power according to own power and the general power of the input；
Correspondingly, the integrated operation parameter sending module, is also used to:
Updated general power and final prediction refrigeration requirement are sent to the first priority controller.
13. device according to claim 12, which is characterized in that further include:
Energy Efficiency Ratio COP computing module is used for after sending updated general power to the first priority controller, according to described
Before the working state control cold operation of storage, when itself is the first priority, according to the updated total work received
Rate and final prediction refrigeration requirement calculate Energy Efficiency Ratio COP.
14. device according to claim 13, which is characterized in that when the self-operating parameter includes: rate of load condensate and volume
Customize cooling capacity；The integrated operation parameter is prediction refrigeration requirement；
Correspondingly, the integrated operation parameter updating module, is specifically used for:
Refrigerating capacity is calculated according to rate of load condensate and rated cooling capacity；
Prediction refrigeration requirement is updated according to the refrigerating capacity.
15. device according to claim 14, which is characterized in that further include:
Rate of load condensate lowers module, for after calculating Energy Efficiency Ratio COP according to the updated general power that receives, according to described
Before the working state control cold operation of storage, rate of load condensate is lowered according to preset ratio, so that according to afterload is lowered
The corresponding COP being calculated of rate meets default energy consumption and compares condition；
Correspondingly, the cold operation control module, is specifically used for:
According to the working state control cold operation of the corresponding storage of downward preload rate.
16. device according to claim 15, which is characterized in that described according to lowering, afterload rate is corresponding to be calculated
COP meets default energy consumption and compares condition, comprising:
It lowers the corresponding COP being calculated of afterload rate and is less than the corresponding COP being calculated of downward preload rate；
Correspondingly, the working state control for meeting the storage more corresponding than condition of default energy consumption according to the COP being calculated
Cold operation, comprising:
According to the working state control cold operation for lowering the corresponding storage of preload rate.
17. device according to claim 16, which is characterized in that the preset ratio is not more than 10%.
18. device according to claim 17, which is characterized in that the preset ratio is 5%.
19. a kind of controller, which is characterized in that the control including the described in any item central air-conditioning cold of claim 10-18
Device.
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| CN109838876B (en) * | 2019-02-19 | 2022-03-08 | 陈娟 | Group control management system for central air-conditioning refrigerating machine room |
| CN112484246A (en) * | 2020-11-04 | 2021-03-12 | 珠海格力电器股份有限公司 | Auxiliary programming method, device and equipment for air conditioner controller |
| CN113091234B (en) * | 2021-04-08 | 2021-12-07 | 贵州汇通华城股份有限公司 | Method and system for selecting on-off state of refrigeration host |
| CN114440419B (en) * | 2021-12-31 | 2023-10-27 | 博锐尚格科技股份有限公司 | Control method, device, equipment and storage medium of cold station secondary pump system |
| CN114923266B (en) * | 2022-07-20 | 2022-09-30 | 蘑菇物联技术（深圳）有限公司 | Method, apparatus and medium for controlling chiller of central air conditioning system |
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