CN108488999A - A kind of public building air conditioner load optimal control method - Google Patents
A kind of public building air conditioner load optimal control method Download PDFInfo
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- CN108488999A CN108488999A CN201810183965.7A CN201810183965A CN108488999A CN 108488999 A CN108488999 A CN 108488999A CN 201810183965 A CN201810183965 A CN 201810183965A CN 108488999 A CN108488999 A CN 108488999A
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- public building
- conditioning
- air
- air conditioner
- cold
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—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
- F24F11/47—Responding to energy costs
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
Abstract
The present invention proposes a kind of public building air conditioner load optimal control method, stop controlling including the regulation and control of non-Investigation of Cold Storage Centralized Air Conditioning Systems, the regulation and control of cold storage central air-conditioning, distributing air-conditioning duty ratio wheel, under the premise of meeting comfort level requirement of the user to inner temperature of room, realize the load down target of public building central air conditioner system, meanwhile the refrigeration unit of public building air-conditioning system can also be made to be operated in comparatively ideal operating status.
Description
Technical field
The present invention relates to field of power more particularly to public building air conditioner load optimal control methods.
Background technology
In view of public building central air conditioner system generally uses screw or centrifugal refrigerating unit, usual separate unit system
The rated power of cold is more than 100kw and rated speed and is more than 3000r/min, cannot carry out it is instantaneous opening and turning off, because
This, public building central air conditioner system can not more preferably realize the periodical frequent start-stop control strategy of above-mentioned refrigeration unit.
Invention content
In order to solve the above technical problems, the present invention proposes a kind of public building air conditioner load optimal control method, including
Non- Investigation of Cold Storage Centralized Air Conditioning Systems regulation and control, the regulation and control of cold storage central air-conditioning, distributing air-conditioning duty ratio wheel stop controlling.
Preferably, the strategy of the non-Investigation of Cold Storage Centralized Air Conditioning Systems regulation and control is：
S1：Establish the room temperature time-varying variance of public building central air-conditioning start and stop state；
S2：Setting meets the room temperature constant interval of human comfort；
S3：The air conditioner refrigerating that calculating meets the constraint of room temperature constant interval upper and lower limit opened, between the stopping time；
S4：According to refrigeration start and stop duty ratio, public building wheel is selected to stop number of floor levels and take turns to stop the period；
S5：Stop number of floor levels according to wheel, load down is run in proportion to central air-conditioning.
Preferably, the time-varying variance is：Public building Central air-conditioning unit is always with constant system in controlling cycle
ColdOperation, andMeet following formula：
Wherein, n is the number of plies of public building；τonFor opening time, τoffTo shut down the time.
Preferably, the cold storage central air-conditioning is regulated to：In 8 hours nights off-peak electricity price period, central air conditioner system
The method of operation of refrigeration unit is constant；It is interior when other periods, base load unit and Ice Storage Tank provide jointly cool down within doors it is required
Refrigeration duty, and it is a definite value k that each moment Ice Storage Tank, which releases cold and the ratio perseverance of general refrigeration ability needed for public building,.
Preferably, the cold storage central air-conditioning regulating strategy formula is：
qi=qj,i+qx,i (9-14)
qx,i=(1-k) qi (9-15)
Wherein, i is regulation and control period (i=33,34 ..., 96)；qiFor the general refrigeration ability value needed for the i-th period public building,
Unit kW；qj,iFor the practical semen donors of the i-th period base load unit, unit kW；qx,iFor the practical cooling of the i-th period cold-storage groove
Amount, unit kW；LF is the remaining cold percentage of cold-storage groove after one day； Qx,tFor 8 hours low ebb electricity prices of this day night when
Total cold storage capacity of section double duty chiller unit, unit kWh.
Preferably, the air-conditioning power consumption that the distributing air-conditioning duty ratio wheel stops controlling is represented by：
Wherein, n is the distributing air conditioner load number that the public building participates in regulation and control；τonFor the air-conditioning wheel control opening time；
τoffFor air-conditioning wheel control dwell time.
The following advantageous effect of public building air conditioner load optimal control method proposed by the present invention：Meeting user to room
Under the premise of the comfort level of interior temperature requires, the load down target of public building central air conditioner system is realized, meanwhile, also can
The refrigeration unit of public building air-conditioning system is set to be operated in comparatively ideal operating status.
Description of the drawings
To describe the technical solutions in the embodiments of the present invention more clearly, required in being described below to embodiment
The attached drawing used is briefly described.
Fig. 1 is that the non-cold storage central air-conditioning floor gap wheel of the present invention stops control strategy；
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation describes.
The present invention proposes a kind of public building air conditioner load optimal control method, including non-cold storage central air-conditioning system
System regulation and control, the regulation and control of cold storage central air-conditioning, distributing air-conditioning duty ratio wheel stop controlling.
Specifically it is divided into three parts：
Public building central air-conditioning regulating strategy is based on following three hypothesis：1) ignore each floor gap air of public building
Flow the influence to room temperature；2) under the premise of end-equipment working condition is identical, public building Central Air-condition Refrigerator
The refrigerating capacity of group is in each floor mean allocation；3) under identical room temperature primary condition, each floor of public building is obtained in arbitrary period
The variable quantity of room temperature is equal when obtaining equal air conditioner refrigerating amount.
As the strategy of Fig. 1, the non-Investigation of Cold Storage Centralized Air Conditioning Systems regulation and control are：
S1：Establish the room temperature time-varying variance of public building central air-conditioning start and stop state；
S2：Setting meets the room temperature constant interval of human comfort；
S3：The air conditioner refrigerating that calculating meets the constraint of room temperature constant interval upper and lower limit opened, between the stopping time；
S4：According to refrigeration start and stop duty ratio, public building wheel is selected to stop number of floor levels and take turns to stop the period；
S5：Stop number of floor levels according to wheel, load down is run in proportion to central air-conditioning.
Its concrete mode is：Public building Central air-conditioning unit is always with constant refrigerating capacity in controlling cycleFortune
Row, andMeet following formula：
Wherein, n is the number of plies of public building.In the control strategy of this section, the air-conditioning system end of each floor of public building
End equipment by the opening time is τ on and shut down the time be τ off in the way of carry out wheel stop.When n is even number, (n=10 is taken to be
Example), in a controlling cycle τ c, the combination open and-shut mode of the end-equipment of each layer refrigeration system of different periods public building
The duration of difference, each period is 2 τ on/n, when entering subsequent period, always closes one layer of refrigeration system end-equipment
To stop to this layer of cooling, and the refrigeration system end-equipment of one layer of unlatching accordingly, to ensure that each period opens and closes
The number of floor levels of refrigeration system end-equipment is n/2, meanwhile, it ensure that public building central air-conditioning in a controlling cycle τ c
Unit is always to meet the constant refrigerating capacity of formula (9-13)Operation, and each floor air themperature is put between Tmin and Tmax
Dynamic variation.The case where n is odd number be similar when with n being even number, the difference is that each period continues in a controlling cycle
Time is 2 τ on/ (n+1), and the number of floor levels that each period opens refrigeration system end-equipment is (n+1)/2.
The Effec-tive Function range of every centrifugal refigerating compressor centrifuges between the 40%-100% of its refrigerating capacity
Formula refrigeration machine is easier that " surge " phenomenon occurs when less than 40% load operation；And every screw type refrigerating compressor exists
Efficiency can drastically decline when being run below 50% load.Therefore, the central air-conditioning regulating strategy proposed using this section, every
In one controlling cycle, each public building all need to according to every refrigeration machine 40% or more load operation principle, to distribute the public affairs
The refrigerating capacity that each refrigeration machine of building is undertaken altogether.
The refrigeration unit of public building Investigation of Cold Storage Centralized Air Conditioning Systems includes double duty chiller unit and base load unit.It is logical
Often, public building Investigation of Cold Storage Centralized Air Conditioning Systems uses the following method of operation when summer does not regulate and control：Night 0：00-8：00 low ebb
Rate period, double duty chiller unit are freezed with rated load operation, and by cold obtained all with ice (or other phase transformations
Material) form be stored in cold-storage groove, the required refrigeration duty that cools down within doors is provided by base load unit；It is first in other periods
The required refrigeration duty that cools down within doors first is provided by base load unit, the loaded portion that cannot be satisfied releases cold offer by cold-storage groove again.
Using the above working method, there are the colds that night off-peak electricity price period Double-working-condition unit stores in cold-storage groove
The waste of the energy can not be caused the problem of all or almost all releasing other periods.In consideration of it, using perseverance herein
Burden control method regulates and controls the cold storage central air-conditioning of public building.Specifically control strategy is：8 hours nights low ebb
In rate period, the method for operation of central air conditioner system refrigeration unit is constant；It is interior when other periods, base load unit and Ice Storage Tank
It is common that the required refrigeration duty that cools down within doors is provided, and each moment Ice Storage Tank releases cold and general refrigeration ability needed for public building
Ratio perseverance is a definite value k.It, can be by selecting suitable k values to be stored to realize in cold-storage groove daily using the regulation and control scheme
Cold all or almost all discharge, while effectively reduce public building air conditioner load the peak of power consumption period total use
Electricity.The cold storage central air-conditioning regulating strategy of the public building meets following formula：
qi=qj,i+qx,i (9-14)
qx,i=(1-k) qi (9-15)
Wherein, i is that regulation and control period (i=33,34 ..., 96) (were divided into 96 periods by one day herein, are one per 15min
A period, and assume that all power and variables and refrigerating capacity variate-value that are discussed in text within a period are constant)；When qi is i-th
General refrigeration ability value needed for section public building, unit kW；Qj, i are the practical semen donors of the i-th period base load unit, unit kW；qx,
I is the practical semen donors of the i-th period cold-storage groove, unit kW；LF is the remaining cold percentage of cold-storage groove after one day；Qx,
T is total cold storage capacity of this day 8 hours night off-peak electricity price period double duty chiller unit, unit kWh.
Distributing air-conditioning duty ratio wheel stops control strategy
Given room temperature control interval [Tmin,Tmax]：
Control strategy is stopped using the public building distributing air-conditioning grouping wheel based on Duty ratio control, in the regulation and control period
The extensive distributing air-conditioning power consumption of public building is represented by：
Wherein, n is the distributing air conditioner load number that the public building participates in regulation and control；τonFor the air-conditioning wheel control opening time；
τoffFor air-conditioning wheel control dwell time.
A variety of modifications of embodiment will be apparent to those skilled in the art, institute herein
The General Principle of definition can be realized in other embodiments without departing from the spirit or scope of the present invention.Cause
This, the present invention is not intended to be limited to the embodiments shown herein, and is to fit to and principles disclosed herein and new
The consistent widest range of clever feature.
Claims (6)
1. a kind of public building air conditioner load optimal control method, which is characterized in that including non-Investigation of Cold Storage Centralized Air Conditioning Systems tune
Control, the regulation and control of cold storage central air-conditioning, distributing air-conditioning duty ratio wheel stop controlling.
2. public building air conditioner load optimal control method according to claim 1 and strategy, which is characterized in that described non-
Investigation of Cold Storage Centralized Air Conditioning Systems regulation and control strategy be：
S1：Establish the room temperature time-varying variance of public building central air-conditioning start and stop state；
S2：Setting meets the room temperature constant interval of human comfort；
S3：The air conditioner refrigerating that calculating meets the constraint of room temperature constant interval upper and lower limit opened, between the stopping time；
S4：According to refrigeration start and stop duty ratio, public building wheel is selected to stop number of floor levels and take turns to stop the period；
S5：Stop number of floor levels according to wheel, load down is run in proportion to central air-conditioning.
3. public building air conditioner load optimal control method according to claim 2 and strategy, which is characterized in that when described
Become equation into：Public building Central air-conditioning unit is always with constant refrigerating capacity in controlling cycleOperation, andUnder satisfaction
Formula：
Wherein, n is the number of plies of public building；τonFor opening time, τoffTo shut down the time.
4. public building air conditioner load optimal control method according to claim 1 and strategy, which is characterized in that the storage
Cold type central air-conditioning is regulated to：In 8 hours nights off-peak electricity price period, the method for operation of central air conditioner system refrigeration unit is not
Become；Interior when other periods, base load unit and Ice Storage Tank provide cool down within doors required refrigeration duty, and each moment ice-reserving jointly
It is a definite value k that slot, which releases cold and the ratio perseverance of general refrigeration ability needed for public building,.
5. public building air conditioner load optimal control method according to claim 3 and strategy, which is characterized in that the storage
Cold type central air-conditioning regulating strategy formula is：
qi=qj,i+qx,i (9-14)
qx,i=(1-k) qi (9-15)
Wherein, i is regulation and control period (i=33,34 ..., 96)；qiFor the general refrigeration ability value needed for the i-th period public building, unit kW；
qj,iFor the practical semen donors of the i-th period base load unit, unit kW；qx,iFor the practical semen donors of the i-th period cold-storage groove, unit
kW；LF is the remaining cold percentage of cold-storage groove after one day；Qx,tFor this day 8 hours night off-peak electricity price period Double-working-condition
Total cold storage capacity of refrigeration unit, unit kWh.
6. public building air conditioner load optimal control method according to claim 1 and strategy, which is characterized in that described point
The air-conditioning power consumption that formula air-conditioning duty ratio wheel stops controlling is dissipated to be represented by：
Wherein, n is the distributing air conditioner load number that the public building participates in regulation and control；τonFor the air-conditioning wheel control opening time；τoffFor sky
Adjust wheel control dwell time.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109899930A (en) * | 2019-01-29 | 2019-06-18 | 国家电网有限公司 | Extensive public building central air-conditioning participates in the combinatorial regulation method of peak load regulation network |
| CN114165896A (en) * | 2021-11-23 | 2022-03-11 | 无锡多纬智控科技有限公司 | Central air-conditioning system electric power dynamic load peak regulation method |
| CN114690819A (en) * | 2021-12-01 | 2022-07-01 | 国网北京市电力公司 | Control strategy determination method and device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103162364A (en) * | 2013-03-29 | 2013-06-19 | 深圳市中鼎空调净化有限公司 | Water storage and ice storage tandem type central air conditioning system and operating method thereof |
| CN104110782A (en) * | 2013-11-30 | 2014-10-22 | 深圳市作夏科技有限公司 | Water-cooling-storage energy-saving central air-conditioning management system |
| CN104636987A (en) * | 2015-02-06 | 2015-05-20 | 东南大学 | Dispatching method for power network load with extensive participation of air conditioner loads of institutional buildings |
| US20170299205A1 (en) * | 2016-04-18 | 2017-10-19 | Bertrand Michaud | Air Distribution System |
| US20180010818A1 (en) * | 2016-07-07 | 2018-01-11 | Enerallies, Inc. | Forecast-based automatic scheduling of a distributed network of thermostats with learned adjustment |
-
2018
- 2018-03-06 CN CN201810183965.7A patent/CN108488999A/en not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103162364A (en) * | 2013-03-29 | 2013-06-19 | 深圳市中鼎空调净化有限公司 | Water storage and ice storage tandem type central air conditioning system and operating method thereof |
| CN104110782A (en) * | 2013-11-30 | 2014-10-22 | 深圳市作夏科技有限公司 | Water-cooling-storage energy-saving central air-conditioning management system |
| CN104636987A (en) * | 2015-02-06 | 2015-05-20 | 东南大学 | Dispatching method for power network load with extensive participation of air conditioner loads of institutional buildings |
| US20170299205A1 (en) * | 2016-04-18 | 2017-10-19 | Bertrand Michaud | Air Distribution System |
| US20180010818A1 (en) * | 2016-07-07 | 2018-01-11 | Enerallies, Inc. | Forecast-based automatic scheduling of a distributed network of thermostats with learned adjustment |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109899930A (en) * | 2019-01-29 | 2019-06-18 | 国家电网有限公司 | Extensive public building central air-conditioning participates in the combinatorial regulation method of peak load regulation network |
| CN114165896A (en) * | 2021-11-23 | 2022-03-11 | 无锡多纬智控科技有限公司 | Central air-conditioning system electric power dynamic load peak regulation method |
| CN114690819A (en) * | 2021-12-01 | 2022-07-01 | 国网北京市电力公司 | Control strategy determination method and device |
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Application publication date: 20180904 |