CN106765911A - 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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- CN106765911A CN106765911A CN201611110683.1A CN201611110683A CN106765911A CN 106765911 A CN106765911 A CN 106765911A CN 201611110683 A CN201611110683 A CN 201611110683A CN 106765911 A CN106765911 A CN 106765911A
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- 238000004378 air conditioning Methods 0.000 title claims abstract description 47
- 238000000034 method Methods 0.000 title claims abstract description 41
- 238000011144 upstream manufacturing Methods 0.000 claims abstract description 19
- 238000005057 refrigeration Methods 0.000 claims description 84
- 238000001816 cooling Methods 0.000 claims description 20
- 230000005540 biological transmission Effects 0.000 claims description 15
- 230000036316 preload Effects 0.000 claims description 13
- 230000015572 biosynthetic process Effects 0.000 claims description 5
- 238000003786 synthesis reaction Methods 0.000 claims description 4
- 230000000694 effects Effects 0.000 description 9
- 238000005265 energy consumption Methods 0.000 description 7
- 240000002853 Nelumbo nucifera Species 0.000 description 3
- 235000006508 Nelumbo nucifera Nutrition 0.000 description 3
- 235000006510 Nelumbo pentapetala Nutrition 0.000 description 3
- 238000004134 energy conservation Methods 0.000 description 3
- 238000012163 sequencing technique Methods 0.000 description 3
- 241000208340 Araliaceae Species 0.000 description 2
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 2
- 235000003140 Panax quinquefolius Nutrition 0.000 description 2
- 230000001143 conditioned effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 235000008434 ginseng Nutrition 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 230000035772 mutation Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 210000000582 semen Anatomy 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—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 technology
In computer room in Large Central Air Conditioning System system cooling is carried out using cold.According to the size of cooling needs, generally have
Many identical cold or cold of different sizes are connected in parallel, and semen donors are adjusted by controlling the unlatching number of units of cold,
To meet system end refrigeration requirement.
The energy consumption of air-conditioning system accounts for half of whole building energy consumption or so, and cold is the energy consumption rich and influential family of whole computer room, accounts for
Whole energy consumption of machine room more than half, therefore the fractional energy savings of cold is the important indicator for influenceing building energy conservation.The center for using at present
Control system is all the group control system of centralization, the central controller decision-making cold in whole system, water pump, cooling tower, water valve
Deng opening and mutually regulation.Control of the centralized group control system to cold, generally refers to certain condition, judges system
System just increases a cold after reaching a certain condition, and judgement system is shut off a cold after reaching certain another condition.
The control of above-mentioned centralization is in advance by the configuration mode of cold write-in central controller, in different cold number of units
And, it is necessary to change control program of the central controller to cold when there is size cold, cause the controller of this centralization
Cannot be common in a variety of central air conditioner systems.And due to the hysteresis quality of comprehensive pipe network time so that centerized fusion
The end comfortableness of cold is poor.
The content of the invention
The embodiment of the present invention provides a kind of control method of central air-conditioning cold, device and controller, to improve cold
In end while cooling comfortableness, strengthen the versatility of controller control program.
In a first aspect, the embodiment of the invention provides a kind of control method of central air-conditioning cold, the method includes:
Integrated operation parameter is updated according to self-operating parameter and integrated operation parameter, working condition is set and store;
Downstream the first controller sends the integrated operation parameter after the renewal, to cause downstream controller according to
Integrated operation parameter is updated and sets and store working condition again after renewal, until integrated operation parameter after the renewal
Meet preset operating conditions, upstream controller sends operation information;
After the operation information preset duration is received, run according to the working state control cold of the storage.
Second aspect, the embodiment of the present invention additionally provides a kind of control device of central air-conditioning cold, and the device includes:
Integrated operation parameter update module, for updating integrated operation ginseng according to self-operating parameter and integrated operation parameter
Number, sets and stores working condition;
Integrated operation parameter sending module, the integrated operation ginseng after the renewal is sent for downstream the first controller
Number, to cause downstream controller to be updated again according to integrated operation parameter after the renewal and set and store work shape
State, until integrated operation parameter meets preset operating conditions after the renewal, upstream controller sends operation information;
Cold operation control module, for after the operation information preset duration is received, according to the work of the storage
Make state control refrigerator operation.
The third aspect, the embodiment of the present invention additionally provides a kind of controller, and the controller is provided including the embodiment of the present invention
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
Line parameter updates integrated operation parameter, sets and store working condition;It is comprehensive after downstream the first controller transmission renewal
Operational factor is closed, to cause downstream controller to be updated again according to integrated operation parameter after the renewal and set and store
Working condition, until integrated operation parameter meets preset operating conditions after the renewal, upstream controller sends operation information;
After the operation information preset duration is received, run according to the working state control cold of the storage.Realize center
The uneoupled control of each cold in air-conditioning system, has reached the purpose of cold control program generalization exploitation, while ensure that end
The timely and effective property and the comfortableness in end room of cooling.
Brief description of the drawings
Technical scheme in order to illustrate more clearly the embodiments of the present invention, below will be to that will make needed for embodiment description
Accompanying drawing does one and simply introduces, it should be apparent that, drawings in the following description are some embodiments of the present invention, for this
For the those of ordinary skill of field, on the premise of not paying creative work, can also obtain other according to these accompanying drawings
Accompanying drawing.
Fig. 1 is a kind of control method flow chart of central air-conditioning cold that the embodiment of the present invention one is provided;
Fig. 2 be the embodiment of the present invention one provide central air-conditioning cold control method in integrated operation parameter transmission stream
Journey schematic diagram;
Fig. 3 is a kind of control method flow chart of central air-conditioning cold that the embodiment of the present invention two is provided;
Fig. 4 is a kind of control method flow chart of central air-conditioning cold that the embodiment of the present invention three is provided;
Fig. 5 is a kind of structural representation of the control device of central air-conditioning cold that the embodiment of the present invention four is provided.
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 limitation of the invention.It also should be noted that, in order to just
Part rather than entire infrastructure related to the present invention is illustrate only in description, accompanying drawing.
Embodiment one
Fig. 1 is a kind of control method flow chart of central air-conditioning cold that the embodiment of the present invention one is provided, and the present embodiment can
For the control of central air-conditioning cold running status, the method can be performed by the control device of central air-conditioning cold, the device
Can be realized by the mode of software and/or hardware, the device can be integrated in any offer, and 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, including:
S110, integrated operation parameter is updated according to self-operating parameter and integrated operation parameter, set and store work shape
State.
In the present embodiment, the control method of central air-conditioning cold is realized based on formation internet between many cold
's.At least one cold is included in central air conditioner system, wherein, the quantity to cold does not do specific restriction, and every cold is big
It is small can be with identical, it is also possible to it is different.Every cold has the operational factor of itself, and self-operating parameter includes:Refrigerating capacity, work(
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 an amount that change is constantly updated with cold self-operating parameter.Optionally, it is described from
Body operational factor includes:Refrigerating capacity, the integrated operation parameter includes:Prediction refrigeration requirement;Accordingly, it is described according to itself fortune
Line parameter and integrated operation parameter update integrated operation parameter, set and store working condition, including:It is more than in the refrigerating capacity
During the prediction refrigeration requirement, original prediction refrigeration requirement is kept, set and store working condition to close;In the refrigerating capacity
No more than the prediction refrigeration requirement when, will predict that the difference of refrigeration requirement and refrigerating capacity is updated to predict refrigeration requirement, set
And working condition is stored to open.Exemplary, the refrigerating capacity of cold A is 1000-2000kW, the i.e. maximum cooling capacity of cold A
It is 2000kW, minimum refrigerating capacity is 1000kW.When the prediction refrigeration requirement for being transferred to cold A is 3500kW, sets and store
The working condition of cold A is freezed to open with maximum refrigerating capacity 2000kW, while prediction refrigeration requirement is updated to
1500kW, and the prediction refrigeration requirement after renewal is passed into next cold.When the prediction refrigeration requirement for being transferred to cold A is
During 800kW, because the minimum refrigerating capacity of cold A is 1000kW, it is impossible to meet prediction refrigeration requirement, set and store cold A's
Working condition is closing, to realize the purpose of saving energy consumption.And original prediction refrigeration requirement is passed into next cold.
S120, downstream the first controller send the integrated operation parameter after the renewal, to cause downstream controller root
Updated again according to integrated operation parameter after the renewal and set and store working condition, until comprehensively being transported after the renewal
Line parameter meets preset operating conditions, and upstream controller sends operation information.
In the present embodiment, the controller of downstream first can be a priority level lower than itself cold cold it is corresponding
Controller.Exemplary, integrated operation parameter transmission in the control method of the central air-conditioning cold that Fig. 2 is provided for the present embodiment
Schematic flow sheet.As shown in Fig. 2 having N platform cold, cold A, cold B, cold C, cold D, cold in central air conditioner system
E ... cold N, a cold module is formed, cold total quantity is N, and N is any positive integer, and N can be 1, can be 2, can
Being 7,8,9.Calculating integrated operation parameter is sent and updated since cold A.Operational factors and input of the cold A according to itself
Integrated operation parameter, calculate whether itself opens, set and store the working condition of itself, and update integrated operation parameter.
The integrated operation parameter after renewal is sent to cold B simultaneously, cold B is transmitted more according to itself operational factor and cold A
Integrated operation parameter after new, calculates whether itself opens, and sets and store the working condition of itself, and updates comprehensive fortune again
Line parameter.The integrated operation parameter that will be updated again is sent to cold C, according to above-mentioned rule so circulating transfer.Every cold
After updating integrated operation parameter, judge whether the integrated operation parameter after updating meets preset operating conditions, until after updating
Untill integrated operation parameter meets preset operating conditions, and upstream the controller of cold sends operation information.Wherein, bar is preset
Part is to predict refrigeration requirement in default convergency value and 0 interval range after updating.Default convergency value presets for user
A good cold value, the minimum cold of refrigeration is met for characterizing.Default convergency value is smaller, cold in central air conditioner system
Cooling effect it is better.Refrigeration requirement is predicted after renewal closer to O, when each cold is run by the state of storage, closer to first
Begin prediction refrigeration requirement value, and refrigeration performance is better, and end room cooling more can be close to actual demand, and the comfort level in room is got over
It is high.
S130, after the operation information preset duration is received, according to the storage working state control cold transport
OK.
In the present embodiment, pipe network has time-lag effect, exemplary, in certain hot summer, on certain office block
Noon, 8 demand refrigerating capacitys were 7000KW, but often due to the time-lag effect of pipe network, can be only achieved demand system thirty in the morning eight
Cold so that user's comfortableness is poor.In order to reach more preferable comfortableness, predict refrigeration requirement with end load to be regulated and controled.
If pipe network lag time is t=20min, the same day 10:00 load prediction refrigeration requirement value is 7000kW, then each cold
Will be 9:When 40 by the prediction refrigeration requirement for receiving be 7000kW when, each cold according to storage working state control cold
Operation so that the 7000kW refrigerating capacitys of forecast demand are reached after pipe network system operation 20min.
The control method of the central air-conditioning cold that the present embodiment is provided, joins by according to self-operating parameter and integrated operation
Number updates integrated operation parameter, sets and store working condition;Downstream the first controller sends the comprehensive fortune after the renewal
Line parameter, to cause downstream controller to be updated again according to integrated operation parameter after the renewal and set and store work
State, until integrated operation parameter meets preset operating conditions after the renewal, upstream controller sends operation information;Connecing
After receiving the operation information preset duration, run according to the working state control cold of the storage.Realize central air-conditioning
The uneoupled control of each cold in system, has reached the purpose of cold control program generalization exploitation, while ensure that end cooling
Timely and effective property and end room comfortableness.
Embodiment two
Fig. 3 is the control method flow chart of the central air-conditioning cold that the embodiment of the present invention two is provided, and the present embodiment is above-mentioned
On the basis of embodiment, entered according to the step for self-operating parameter and integrated operation parameter renewal integrated operation parameter to described
Optimization is gone:Obtain the current priority of itself;When from as 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 from as other priority,
The integrated operation parameter that the controller of upstream first sends is received, according to self-operating parameter and the integrated operation parameter of the input
Update integrated operation parameter.
Referring to Fig. 3, the control method of the central air-conditioning cold, including:
S310, the current priority of itself of acquisition.
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 transmission by every sequencing of the priority of 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 was calculated
Criterion:A. the cold that open preferentially is remained 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. performance cold high is preferentially opened, and the low cold of performance is excellent
First close;D. accumulated running time most short cold is preferentially opened, and cold run time cold most long is preferentially closed.Each cold
The sequencing of the criterion that priority is calculated is a>b>c>d.Specifically, the priority of cold is represented with Arabic numerals, numeral
It is smaller, represent that the priority of cold is higher.Exemplary, 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 can realize realizing identical refrigeration by minimum energy consumption.
S330, from as the first priority when, receive input integrated operation parameter, 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, and program includes at least two-part computing
Component, one of them is the first priority budget component, and another is then other priority arithmetic components, is getting priority
Afterwards, computing is carried out into corresponding component according to the priority selection for obtaining.
After outside delivers prediction refrigeration requirement value, every cold receives prediction refrigeration requirement in central air conditioner system.
According to the own priority for obtaining, the integrated operation parameter of input is received by the cold of the first priority, that is, receive outside
The prediction refrigeration requirement of transmission.The cold of the first priority is cold according to the prediction of the operational factor of itself and the outside transmission for receiving
Amount demand, judges the working condition of itself, that is, open or close.Exemplary, when the maximum system of the cold of the first priority
When cold is more than the prediction refrigeration requirement that the outside for receiving is transmitted, the cold of the first priority is set and stored for closed mode,
And keep original prediction refrigeration requirement to pass to the cold of the second priority;Connect when the refrigerating capacity of the cold of the first priority is less than
During the prediction refrigeration requirement of the outside transmission of receipts, the cold of the first priority is set and stored for opening, and will predict cold
The difference of the refrigerating capacity of the cold of amount demand and the first priority is as new prediction refrigeration requirement and the prediction after renewal is cold
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 being worth the cold unlatching for the first priority, other cold need the remaining refrigerating capacity for meeting.
S330, from as other priority when, receive the controller of upstream first send integrated operation parameter, according to from
Body operational factor 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 sends is received
Operational factor, and operational factor and the integrated operation parameter of reception according to itself, judge the working condition of itself, that is, open also
It is to close.Working condition is set and stored, and updates integrated operation parameter.Exemplary, the cold of third priority receives the
The integrated operation parameter of the cold transmission of two priority, the integrated operation parameter can include remaining refrigerating capacity.When the 3rd excellent
When the refrigerating capacity of the cold of first level is more than remaining refrigerating capacity, the working condition for setting and storing the cold of third priority is closed,
And remaining refrigerating capacity is kept into the constant cold for passing to the 4th priority;When the refrigerating capacity of the cold of third priority is not more than
During remaining refrigerating capacity, the working condition for setting and storing the cold of third priority is opened, and remaining refrigerating capacity is excellent with the 3rd
The difference of the refrigerating capacity of the cold of first level passes to the cold of the 4th priority as integrated operation parameter.Next cold is according to biography
It is progressive come integrated operation parameter carry out correlation computations, after the completion of result of calculation is equally passed into again next cold.
S340, downstream the first controller send the integrated operation parameter after the renewal, to cause downstream controller root
Updated again according to integrated operation parameter after the renewal and set and store working condition, until comprehensively being transported after the renewal
Line parameter meets preset operating conditions, and upstream controller sends operation information.
S350, after the operation information preset duration is received, according to the storage working state control cold transport
OK.
The control method of the central air-conditioning cold that the present embodiment is provided, by the difference according to own priority, according to certainly
Body operational factor 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
Operational factor also includes:General power;Accordingly, it is described to be updated according to self-operating parameter and the integrated operation parameter of the input
Integrated operation parameter, also includes:General power is updated according to own power and the general power of the input;Accordingly, it is described upward
Trip controller sends operation information, also includes:The general power after updating is sent 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 set and is stored as open state
When, cold produces the electrical power value of the refrigerating capacity needs consumption of setting, it is understood that be, the such electrical power energy of cold consumption
Enough produce default refrigeration.In central air conditioner system, the integrated operation parameter of the cold transmission of each priority, including it is real-time
The prediction refrigeration requirement (remaining refrigerating capacity) and general power of renewal.Wherein, the cold in each priority transmits integrated operation parameter
During, general power is an amount for real-time update as remaining refrigerating capacity.Exemplary, in central air conditioner system,
Including four cold, respectively cold A, cold B, cold C and cold D, and the sequencing of cold priority are followed successively by:Cold
A>Cold B>Cold C>Cold D.Wherein, to open, the working condition of cold B is closing to the working condition of cold A and cold C,
Then pass to itself work(that the general power in the integrated operation parameter of cold D produces setting refrigerating capacity to need for cold A and cold B
The sum of rate.Integrated operation parameter meets pre-conditioned after renewal, and the general power after updating is sent to the first priority controller,
So that obtaining user can check corresponding general power.
Optionally, after the general power after updating is sent to the first priority controller, according to the work of the storage
Also include before state control refrigerator operation:When from as the first priority, according to the general power after the renewal for receiving and
Final prediction refrigeration requirement calculates Energy Efficiency Ratio COP.Wherein, Energy Efficiency Ratio COP is the prediction refrigeration requirement value and satisfaction of outside transmission
The ratio of the general power after the difference of final prediction refrigeration requirement during default convergency value and renewal.Energy Efficiency Ratio COP values are bigger, produce
The electrical power of raw preset cooling capacity consumption is fewer, and energy saving is higher.
The control method of the central air-conditioning cold that the present embodiment is provided, by sending renewal to the first priority controller
After general power afterwards, step is increased before being run according to the working state control cold of the storage:Excellent certainly as first
During first level, Energy Efficiency Ratio COP is calculated according to the general power after the renewal for receiving and final prediction refrigeration requirement, can be by COP
Value weighs the height of the cold-supplying energy-saving performance of central air-conditioning cold.
Embodiment three
Fig. 4 is the control method flow chart of the central air-conditioning cold that the embodiment of the present invention three is provided, and the present embodiment is above-mentioned
On the basis of embodiment, after the general power after according to the renewal for receiving calculates Energy Efficiency Ratio COP, 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 default ratio, after causing according to downward
The COP that rate of load condensate correspondence is calculated meets default observable index condition.And by the working state control according to the storage
Cold is run, and is specifically optimized for:Working state control cold according to the downward preload rate correspondence storage is run.
Referring to Fig. 4, the control method of the central air-conditioning cold, including:
S410, the current priority of itself of acquisition.
S420, when from as 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, sets and store work
Make state.
S430, from as other priority when, receive the controller of upstream first send prediction refrigeration requirement and total work
Rate, prediction refrigeration requirement and general power according to own power, peak load rate, rated cooling capacity and the input update prediction
Refrigeration requirement and general power, set and store working condition.
S440, downstream the first controller send the prediction refrigeration requirement and general power after the renewal, to cause downstream
Controller is updated and sets and store working condition again according to prediction refrigeration requirement after the renewal, until the renewal
Prediction refrigeration requirement meets preset operating conditions afterwards, and the general power after updating and final prediction are sent to the first priority controller
Refrigeration requirement.
S450, when from as the first priority, according to the general power after the renewal for receiving and final prediction cold need
Seek calculating Energy Efficiency Ratio COP.
S460, rate of load condensate is lowered according to default ratio, with the COP for causing to be calculated according to the afterload rate correspondence of downward
Meet default observable index 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 same cold, rated cooling capacity is fixed value, then rate of load condensate is bigger, and the refrigerating capacity that cold is produced is more, refrigeration
Better.Rate of load condensate in every self-operating parameter of 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 born
The corresponding energy consumption of lotus rate is minimum.By the method according to above-mentioned calculating COP, condition of the cycle calculations in the demand for meeting refrigerating capacity
Under, the corresponding Energy Efficiency Ratio COP of each rate of load condensate, until COP meets default observable index condition.The default observable index condition can be with
Concrete condition setting according to cold unit.Exemplary, the optimal energy-conservation effect of the cold unit can be determined according to test of many times
Really corresponding COP scopes, can be using COP scopes as default observable index condition, to realize the effect of optimal energy-conservation.
Exemplary, when predicting that refrigeration requirement meets pre-conditioned after renewal, each is completed under current loads rate
Cold transmission is calculated, and after having calculated total Energy Efficiency Ratio COP, the rate of load condensate of all cold lowers rate of load condensate according to default ratio,
And calculated with the renewal that the rate of load condensate after downward re-starts general power and prediction refrigeration requirement, wherein, the preset ratio is not
More than 10%.Preferably, the preset ratio is 5%.Above-mentioned adjustment ratio is chosen, can be in rational calculated load and calculating
In time, the variable quantity of rate of load condensate is reduced as far as possible, it is to avoid the mutation of COP values.Predict that refrigeration requirement meets after renewal pre-
If during service condition, rate of load condensate will be lowered according to default 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 observable index condition.
S470, the working state control for meeting default observable index condition correspondence storage according to the COP that is calculated are cold
Machine runs.
Corresponding rate of load condensate when meeting default observable index condition according to COP, according to the working condition that each controller is stored
Corresponding cold is controlled to work respectively, to allow that whole cold unit runs under optimal energy-saving effect.
The control method of the central air-conditioning cold that the present embodiment is provided, rate of load condensate is lowered by according to default ratio, with
So that meeting default observable index condition according to the corresponding COP being calculated of afterload rate is lowered;Accordingly, calculated according to described
The COP for arriving meets the working state control cold operation of default observable index condition correspondence storage.Ensureing the comfortable of end room
While property, to allow whole cold unit to be run under optimal energy-saving effect, central air-conditioning cold is substantially increased
Energy-saving effect.
In a preferred embodiment of the present embodiment, the COP being calculated according to downward afterload rate correspondence
Meet default observable index condition, be specifically optimized for:The corresponding COP being calculated of afterload rate is lowered less than downward preload rate pair
The COP that should be calculated;Accordingly, it is described to meet default observable index condition correspondence storage according to the COP being calculated
Working state control cold is run, and is specifically optimized for:Working state control cold according to the correspondence storage of preload rate is lowered is transported
OK.Because the variation tendency of the performance curve according to cold, the rate of load condensate of cold from maximum change to minimum when, the COP of cold
Value is first increases and then decreases, i.e., when downward trend occur in total COP values, it is believed that the optimal performance of cold has been found
Point, being not required to lower rate of load condensate again carries out follow-up COP calculating, and now transmission is calculated and terminated.According to the downward preload rate pair
The working state control cold operation that should be stored.
The preferred embodiment that the present embodiment is provided, rate of load condensate is lowered by according to default ratio, makes downward afterload
The COP that rate correspondence is calculated is less than the COP that downward preload rate correspondence is calculated;Accordingly, born according to before the downward
The working state control cold operation of lotus rate correspondence storage.While the comfortableness in end room is ensured, further increase
The energy-saving effect of central air-conditioning cold, the fractional energy savings of cold can improve 10%, and especially in transition season, fractional energy savings can be improved
25%..
Example IV
Fig. 5 is a kind of structural representation of the control device of central air-conditioning cold provided in an embodiment of the present invention, the device
Including:Integrated operation parameter update 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 update module 510, for updating comprehensive according to self-operating parameter and integrated operation parameter
Operational factor is closed, working condition is set and store;
The integrated operation parameter sending module 520, the synthesis after the renewal is sent for downstream the first controller
Operational factor, to cause downstream controller to be updated again according to integrated operation parameter after the renewal and set and store work
Make state, until integrated operation parameter meets preset operating conditions after the renewal, upstream controller sends operation information;
The cold operation control module 530, for after the operation information preset duration is received, being deposited according to described
The working state control cold operation of storage.
Optionally, the self-operating parameter includes:Refrigerating capacity, the integrated operation parameter includes:Prediction refrigeration requirement;
Accordingly, the integrated operation parameter update module 510, specifically for:
When the refrigerating capacity is more than the prediction refrigeration requirement, original prediction refrigeration requirement is kept, set and store work
Make state to close;
When the refrigerating capacity is not more than the prediction refrigeration requirement, will predict that refrigeration requirement updates with the difference of refrigerating capacity
It is prediction refrigeration requirement, sets and store working condition to open.
Optionally, predict that refrigeration requirement meets preset operating conditions after the renewal, including:
Predict refrigeration requirement in default convergency value and 0 interval range after the renewal.
Optionally, the integrated operation parameter update module 510, including:
Priority acquiring unit, for obtaining the current priority of itself;
First integrated operation parameter updates, for when from as the first priority, receiving the integrated operation parameter of input,
Integrated operation parameter is updated according to self-operating parameter and the integrated operation parameter of the input;
Second integrated operation parameter updates, and is sent for when from as other priority, receiving the controller of upstream first
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, and the integrated operation parameter also includes:General power;
Accordingly, the integrated operation parameter update module 510, also includes:
General power updating block, for updating general power according to own power and the general power of the input;
Accordingly, the integrated operation parameter sending module 520, is additionally operable to:
The general power after updating and final prediction refrigeration requirement are sent to the first priority controller.
Optionally, also include:
Energy Efficiency Ratio COP computing modules, for the first priority controller send update after general power after, according to
Before the working state control cold operation of the storage, when from as the first priority, after the renewal for receiving
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;
Accordingly, the integrated operation parameter update module 510, specifically 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, also include:
Rate of load condensate lowers module, after calculating Energy Efficiency Ratio COP for the general power after according to the renewal for receiving, according to
Before the working state control cold operation of the storage, rate of load condensate is lowered according to default ratio, after causing according to downward
The COP that rate of load condensate correspondence is calculated meets default observable index condition;
Accordingly, the cold operation control module 530, specifically for:
Working state control cold according to the downward preload rate correspondence storage is run.
Optionally, the COP being calculated according to downward afterload rate correspondence meets default observable index condition, including:
Lower the COP COPs that is calculated corresponding less than downward preload rate that afterload rate correspondence is calculated;
Accordingly, the working condition that default observable index condition correspondence storage is met according to the COP being calculated
Control refrigerator operation, including:
Working state control cold according to the correspondence storage of preload rate is lowered is run.
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
Line parameter updates integrated operation parameter, sets and store working condition;It is comprehensive after downstream the first controller transmission renewal
Operational factor is closed, to cause downstream controller to be updated again according to integrated operation parameter after the renewal and set and store
Working condition, until integrated operation parameter meets preset operating conditions after the renewal, upstream controller sends operation information;
After the operation information preset duration is received, run according to the working state control cold of the storage.Realize center
The uneoupled control of each cold in air-conditioning system, has reached the purpose of cold control program generalization exploitation, while ensure that end
The timely and effective property and the comfortableness in end room of cooling.
The control device of the central air-conditioning cold that the embodiment of the present invention is provided can perform any embodiment of the present invention and be carried
The control method of the central air-conditioning cold of confession, possesses the corresponding functional module of execution method and beneficial effect.
The embodiment of the present invention additionally provides a kind of controller, and the controller includes central air-conditioning provided in an embodiment of the present invention
The control device of cold, with identical module, it is possible to achieve identical function, will not be described here.
Note, above are only presently preferred embodiments of the present invention and institute's application technology principle.It will be appreciated by those skilled in the art that
The invention is not restricted to specific embodiment described here, can carry out for a person skilled in the art various obvious changes,
Readjust and substitute without departing from protection scope of the present invention.Therefore, although the present invention is carried out by above example
It is described in further detail, but the present invention is not limited only to above example, without departing from the inventive concept, also
More other Equivalent embodiments can be included, and the scope of the present invention is determined by scope of the appended claims.
Claims (23)
1. a kind of control method of central air-conditioning cold, it is characterised in that including:
Integrated operation parameter is updated according to self-operating parameter and integrated operation parameter, working condition is set and store;
Downstream the first controller sends the integrated operation parameter after the renewal, to cause downstream controller according to the renewal
Integrated operation parameter is updated and sets and store working condition again afterwards, until integrated operation parameter meets after the renewal
Preset operating conditions, upstream controller transmission operation information;
After the operation information preset duration is received, run according to the working state control cold of the storage.
2. method according to claim 1, it is characterised in that the self-operating parameter includes:Refrigerating capacity, the synthesis
Operational factor includes:Prediction refrigeration requirement;
Accordingly, it is described that integrated operation parameter is updated according to self-operating parameter and integrated operation parameter, set and store work
State, including:
When the refrigerating capacity is more than the prediction refrigeration requirement, original prediction refrigeration requirement is kept, set and store work shape
State is closing;
When the refrigerating capacity is not more than the prediction refrigeration requirement, prediction refrigeration requirement is updated to the difference of refrigerating capacity pre-
Refrigeration requirement is surveyed, working condition is set and store to open.
3. method according to claim 1 and 2, it is characterised in that predict that refrigeration requirement meets default fortune after the renewal
Row condition, including:
Predict refrigeration requirement in default convergency value and 0 interval range after the renewal.
4. method according to claim 1, it is characterised in that it is described according to self-operating parameter and integrated operation parameter more
New integrated operation parameter, including:
Obtain the current priority of itself;
When from as 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 from as other priority, the integrated operation parameter that the controller of upstream first sends is received, joined according to self-operating
Number and the integrated operation parameter of the input update integrated operation parameter.
5. method according to claim 4, it is characterised in that the self-operating parameter includes own power, described comprehensive
Closing operational factor also includes:General power;
Accordingly, it is described that integrated operation parameter is updated according to self-operating parameter and the integrated operation parameter of the input, also wrap
Include:
General power is updated according to own power and the general power of the input;
Accordingly, the upstream controller sends operation information, also includes:
The general power after updating and final prediction refrigeration requirement are sent to the first priority controller.
6. method according to claim 5, it is characterised in that the total work after updating is being sent to the first priority controller
After rate, also include before being run according to the working state control cold of the storage:
When from as the first priority, efficiency is calculated according to the general power after the renewal for receiving and final prediction refrigeration requirement
Compare COP.
7. method according to claim 6, it is characterised in that the self-operating parameter includes:Rate of load condensate and specified system
Cold;
Accordingly, it is described that integrated operation parameter is updated according to self-operating parameter and the integrated operation parameter of the input, including:
Refrigerating capacity is calculated according to rate of load condensate and rated cooling capacity;
Prediction refrigeration requirement is updated according to the refrigerating capacity.
8. method according to claim 7, it is characterised in that the general power after according to the renewal for receiving calculates efficiency
After than COP, also include before being run according to the working state control cold of the storage:
Rate of load condensate is lowered according to default ratio, it is default according to the corresponding COP satisfactions being calculated of afterload rate are lowered to cause
Observable index condition.
Accordingly, the working state control cold according to the storage is run, including:
The working state control cold for meeting default observable index condition correspondence storage according to the COP being calculated is run.
9. method according to claim 8, it is characterised in that described according to lowering what afterload rate correspondence was calculated
COP meets default observable index condition, including:
Lower the COP COPs that is calculated corresponding less than downward preload rate that afterload rate correspondence is calculated;
Accordingly, the working state control that default observable index condition correspondence storage is met according to the COP being calculated
Cold is run, including:
Working state control cold according to the correspondence storage of preload rate is lowered is run.
10. method according to claim 9, it is characterised in that the preset ratio is not more than 10%.
11. methods according to claim 10, it is characterised in that the preset ratio is 5%.
A kind of 12. control devices of central air-conditioning cold, it is characterised in that including:
Integrated operation parameter update module, for updating integrated operation parameter according to self-operating parameter and integrated operation parameter,
Set and store working condition;
Integrated operation parameter sending module, the integrated operation parameter after the renewal is sent for downstream the first controller, with
So that downstream controller is updated and sets and store working condition again according to integrated operation parameter after the renewal, until
Integrated operation parameter meets preset operating conditions after the renewal, and upstream controller sends operation information;
Cold operation control module, for after the operation information preset duration is received, according to the work shape of the storage
State control refrigerator operation.
13. devices according to claim 12, it is characterised in that the self-operating parameter includes:Refrigerating capacity, it is described comprehensive
Closing operational factor includes:Prediction refrigeration requirement;
Accordingly, the integrated operation parameter update module, specifically for:
When the refrigerating capacity is more than the prediction refrigeration requirement, original prediction refrigeration requirement is kept, set and store work shape
State is closing;
When the refrigerating capacity is not more than the prediction refrigeration requirement, prediction refrigeration requirement is updated to the difference of refrigerating capacity pre-
Refrigeration requirement is surveyed, working condition is set and store to open.
14. device according to claim 12 or 13, it is characterised in that predict that refrigeration requirement meets after the renewal default
Service condition, including:
Predict refrigeration requirement in default convergency value and 0 interval range after the renewal.
15. devices according to claim 12, it is characterised in that the integrated operation parameter update module, including:
Priority acquiring unit, for obtaining the current priority of itself;
First integrated operation parameter updates, for when from as the first priority, receiving the integrated operation parameter of input, according to
Self-operating parameter and the integrated operation parameter of the input update integrated operation parameter;
Second integrated operation parameter updates, for when from as other priority, receiving the comprehensive of the controller of upstream first transmission
Operational factor is closed, integrated operation parameter is updated according to self-operating parameter and the integrated operation parameter of the input.
16. devices according to claim 15, it is characterised in that the self-operating parameter includes own power, described
Integrated operation parameter also includes:General power;
Accordingly, the integrated operation parameter update module, also includes:
General power updating block, for updating general power according to own power and the general power of the input;
Accordingly, the integrated operation parameter sending module, is additionally operable to:
The general power after updating and final prediction refrigeration requirement are sent to the first priority controller.
17. devices according to claim 16, it is characterised in that also include:
Energy Efficiency Ratio COP computing modules, for after the general power after updating is sent to the first priority controller, according to described
Before the working state control cold operation of storage, when from as the first priority, according to the total work after the renewal for receiving
Rate and final prediction refrigeration requirement calculate Energy Efficiency Ratio COP.
18. devices according to claim 17, it is characterised in that the self-operating parameter includes:Rate of load condensate and specified
Refrigerating capacity;
Accordingly, the integrated operation parameter update module, specifically 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.
19. devices according to claim 18, it is characterised in that also include:
Rate of load condensate lowers module, after calculating Energy Efficiency Ratio COP for the general power after according to the renewal for receiving, according to described
Before the working state control cold operation of storage, rate of load condensate is lowered according to default ratio, to cause according to downward afterload
The COP that rate correspondence is calculated meets default observable index condition;
Accordingly, the cold operation control module, specifically for:
Working state control cold according to the downward preload rate correspondence storage is run.
20. devices according to claim 19, it is characterised in that described to correspond to what is be calculated according to downward afterload rate
COP meets default observable index condition, including:
Lower the COP COPs that is calculated corresponding less than downward preload rate that afterload rate correspondence is calculated;
Accordingly, the working state control that default observable index condition correspondence storage is met according to the COP being calculated
Cold is run, including:
Working state control cold according to the correspondence storage of preload rate is lowered is run.
21. devices according to claim 20, it is characterised in that the preset ratio is not more than 10%.
22. devices according to claim 21, it is characterised in that the preset ratio is 5%.
A kind of 23. controllers, it is characterised in that the control device of the central air-conditioning cold including claim 12-22.
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