CN102168877B - Load prediction based group control method and device for central air-conditioning system - Google Patents
Load prediction based group control method and device for central air-conditioning system Download PDFInfo
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Abstract
The invention discloses a load prediction based group control method and device for a central air-conditioning system. The method comprises the following steps of: S1, receiving commands of a time and adding and subtracting temperature matrix table and an adding and subtracting temperature correction table input by a user; S2, calculating a preset value of an optimal adding and subtracting temperature according to the current outdoor temperature acquired in real time, the time and adding and subtracting temperature matrix table and the adding and subtracting temperature correction table; and S3, determining whether the central air-conditioning system needs to increase or decrease the number of freezers and auxiliary machines through comparing the preset value of the optimal adding and subtracting temperature with the current temperature of a frozen backwater header pipe acquired in real time. The preset value of an adding temperature and/or the preset value of a subtracting temperature can be automatically adjusted and corrected through increasing the time and adding and subtracting temperature matrix table and the adding and subtracting temperature correction table; the problems of reducing the environmental comfortableness and wasting the energy consumption of the system due to the uncertainty of the outdoor temperature and the refrigeration capacity load needed by the system of the traditional central air-conditioning system are solved; and therefore, the purpose of economic and energy-saving operation is achieved.
Description
Technical field
The present invention relates to central air-conditioning group control system field, relate in particular to a kind of central air conditioner system group control method and device based on load prediction.
Background technology
At present, in order to realize building central air conditioner system machine room unmanned, reduce the input of cost of labor, the part central air conditioner system has adopted the team control technology, realize that in central air conditioner system, all devices moves automatically, wherein, the group control method of building central air conditioner system is generally according to freezing return main's the temperature value computing system refrigerator operation demand number of units of comparing with preset value, and it moves number of units add-subtract control method and is:
1, add the machine method: greater than after adding machine temperature preset value, the trigger timing begins to increase a cooling-water machine operation reach the delay time of setting when the timing time value after when freezing return main's temperature value;
2, subtract the machine method: less than after subtracting machine temperature preset value, the trigger timing begins to reduce a cooling-water machine operation reach the delay time of setting when the timing time value after when freezing return main's temperature value;
After definite system refrigerator operation demand number of units, the subsidiary engine equipment such as system's refrigerating water pump, coolant pump, cooling tower, valve will be according to the operation demand quantity of refrigerator operation demand number of units Auto-matching self, in central air conditioner system, all devices starts relevant equipment according to operation demand quantity, thereby whole system equipment is moved automatically.But, it is more single that the method is controlled parameter, can not change and automatically adjust parameter with outdoor temperature or system loading, in calculating refrigerator operation demand number of units process, when outdoor temperature uprises or system requirements cold load when increasing, system needs the operation quantity of response increase refrigerator fast, to guarantee environmental degree of comfort; When outdoor temperature step-down or system requirements cold load reduces, system needs response fast to reduce the operation quantity of refrigerator, reduce the surplus capacity of air conditioner refrigerating, reaching energy-conservation purpose, but find through investigation, because outdoor temperature changes and the reason such as system requirements cold load uncertainty, system fails in time response to adjust the operation quantity of refrigerator, like this, cause on the one hand the system environments comfort level to reduce, cause on the other hand the waste of air conditioning energy consumption serious.
At home, at present building property manager mostly can only be according to operating experience in the past, suitably adjust adding machine temperature preset value and delay time preset value, adopt the method for manual intervention, reduce the generation of this phenomenon as far as possible, but this way needs the manager that abundant field experience is arranged, not only increased gerentocratic burden, and caused higher management cost, in addition, this way implementation result is relatively poor, effectively energy efficient.
Abroad, usually adopt with refrigerator and carry out communication, obtain refrigerator operating load data; According to the variation of refrigerator operating load, adjust adding machine temperature preset value.But, large time delay due to central air conditioner system, refrigerator operating load data can not effectively reflect the actual demand of central air conditioner system cold load, therefore, the method can not change the adding machine problem that causes from solving in essence by outdoor temperature or system loading, in addition, usually to purchase the refrigerator communication module with the refrigerator communication, it is expensive, and the programming, debug all more complicated, be unfavorable for application.
In sum, there is following shortcoming in existing technical scheme:
1. adopt the method for manual intervention:
1) depend on gerentocratic level and operation, implementation result is poor;
2) adopt the fixedly method of adding machine temperature, the situation of the adding machine that usually can cause lagging behind can not the self-adapting operation environmental evolution;
2. adopt the method with the refrigerator communication:
1) can not change the adding machine problem that causes from solving in essence by outdoor temperature or system loading;
2) the refrigerator communication module is expensive, uses complexity, is unfavorable for promoting.
Summary of the invention
The technical problem to be solved in the present invention is, cause easily because outdoor temperature and system requirements cold load is uncertain for prior art that environmental degree of comfort reduces, the defective of system energy consumption waste, provide a kind of effectively energy-conservation, cheaply based on central air conditioner system group control method and the device of load prediction.
The technical solution adopted for the present invention to solve the technical problems is: construct a kind of central air conditioner system group control method based on load prediction, said method comprising the steps of:
S1. receive user's Shu Rushijian ﹠amp; The order of adding machine temperature matrix table and adding machine temperature correction table, wherein, described Shi Jian ﹠amp; Adding machine temperature matrix table comprises time interval, reaches add machine temperature preset value and subtract machine temperature preset value corresponding with described time interval, and described adding machine temperature correction table comprises the outdoor temperature scope, reaches add machine temperature correction value and/or subtract machine temperature correction value corresponding with described outdoor temperature scope;
S2. according to the current outdoor temperature of controller Real-time Collection, described Shi Jian ﹠amp; Adding machine temperature matrix table and described adding machine temperature correction table are calculated best adding machine temperature preset value and/or subtract machine temperature preset value;
S3. by more best adding machine temperature preset value and/or subtract machine temperature preset value and current freezing return main's temperature of controller Real-time Collection, whether need to increase or reduce the quantity of refrigerator and subsidiary engine to judge central air conditioner system.
In the central air conditioner system group control method based on load prediction of the present invention, also comprised before step S2:
The described current outdoor temperature of Real-time Collection, described current freezing return main's temperature, and the current running status of refrigerator.
In the central air conditioner system group control method based on load prediction of the present invention, described step S2 further comprises:
Current running status and described Shi Jian ﹠amp according to described refrigerator; Adding machine temperature matrix table adds machine temperature preset value and subtracts machine temperature preset value and will automatically be adjusted into preset value in corresponding time interval.
In the central air conditioner system group control method based on load prediction of the present invention, described step S2 further comprises:
Controller adds machine temperature preset value and/or subtracts machine temperature preset value according to described current outdoor temperature and described adding machine temperature correction table automatic calibration, to calculate best adding machine temperature preset value and/or subtract machine temperature preset value.
In the central air conditioner system group control method based on load prediction of the present invention, described step S3 further comprises:
S31. judge described current freezing return main's temperature whether greater than the best add machine temperature preset value, if, execution in step S32, if not, execution in step S34;
S32. receive the order that the user arranges the first Preset Time, wherein, described the first Preset Time is for increasing the startup delay time of refrigerator and subsidiary engine quantity;
S33. judge whether described the first Preset Time arrives, if, start refrigerator and subsidiary engine, if not, step finishes;
S34. judge described current freezing return main's temperature whether less than the best subtract machine temperature preset value, if, execution in step S35, if not, step finishes;
S35. receive the order that the user arranges the second Preset Time, wherein, described the second Preset Time is for reducing the delay time of closing of refrigerator and subsidiary engine quantity;
S36. judge whether described the second Preset Time arrives, if, close refrigerator and subsidiary engine, if not, step finishes.
The present invention also constructs a kind of central air conditioner system group control device based on load prediction, and described device specifically comprises successively and to connect:
Be used for receiving user's Shu Rushijian ﹠amp; The receiver module of the order of adding machine temperature matrix table and adding machine temperature correction table, wherein, described Shi Jian ﹠amp; Adding machine temperature matrix table comprises time interval, reaches add machine temperature preset value and subtract machine temperature preset value corresponding with described time interval, and described adding machine temperature correction table comprises the outdoor temperature scope, reaches add machine temperature correction value and/or subtract machine temperature correction value corresponding with described outdoor temperature scope;
Be used for according to the current outdoor temperature of controller Real-time Collection, described Shi Jian ﹠amp; Adding machine temperature matrix table and described adding machine temperature correction table are calculated the best computing module that adds machine temperature preset value and/or subtract machine temperature preset value;
Be used for by more best adding machine temperature preset value and/or subtract machine temperature preset value and current freezing return main's temperature of controller Real-time Collection, whether need to increase or reduce the comparison module of the quantity of refrigerator and subsidiary engine to judge central air conditioner system.
In the central air conditioner system group control device based on load prediction of the present invention, described device also comprises:
Be connected and be used for the described current outdoor temperature of Real-time Collection, described current freezing return main's temperature, and the acquisition module of the current running status of refrigerator with described computing module.
In the central air conditioner system group control device based on load prediction of the present invention, described computing module also comprises successively and to connect:
Be used for current running status and described Shi Jian ﹠amp according to described refrigerator; Adding machine temperature matrix table adds machine temperature preset value and subtracts the adjustment unit that machine temperature preset value will be adjusted into the preset value in corresponding time interval automatically;
Be used for controller and add machine temperature preset value and/or subtract machine temperature preset value according to described current outdoor temperature and described adding machine temperature correction table automatic calibration, to calculate the best correcting unit that adds machine temperature preset value and/or subtract machine temperature preset value.
In the central air conditioner system group control device based on load prediction of the present invention, described comparison module comprises:
Be used for judging that described current freezing return main's temperature is whether greater than first judging unit that adds machine temperature preset value of the best;
Be connected with described the first judging unit and be used for described current freezing return main's temperature greater than the best add machine temperature preset value the time, receive the first setting unit that the user arranges the order of the first Preset Time, wherein, described the first Preset Time is for increasing the startup delay time of refrigerator and subsidiary engine quantity;
Be connected and be used for judging the second judging unit whether described the first Preset Time arrives with described the first setting unit;
Be connected and be used for starting the start unit of refrigerator and subsidiary engine when described the first Preset Time arrives with described the second judging unit;
Be connected and be used for being not more than in described current freezing return main's temperature best when adding machine temperature preset value with described the first judging unit, judge that described current freezing return main's temperature is whether less than the 3rd judging unit that subtracts machine temperature preset value of the best;
Be connected with described the 3rd judging unit and be used for described current freezing return main's temperature less than the best subtract machine temperature preset value the time, receive the second setting unit that the user arranges the order of the second Preset Time, wherein, described the second Preset Time is for reducing the delay time of closing of refrigerator and subsidiary engine quantity;
Be connected and be used for judging the 4th judging unit whether described the second Preset Time arrives with described the second setting unit;
Be connected with described the 4th judging unit and be used for closing the closing unit of refrigerator and subsidiary engine when described the second Preset Time arrives.
Implement technical scheme of the present invention, by increase Shi Jian ﹠amp on the central air conditioner system monitoring interface; Adding machine temperature matrix table and adding machine temperature correction table can be adjusted automatically and correction adds machine temperature preset value and/or subtracts machine temperature preset value, with the actual required refrigerator of judgement central air conditioner system and the quantity of subsidiary engine, solve current central air conditioner system and caused the problem of environmental degree of comfort reduction, system energy consumption waste due to outdoor temperature and the probabilistic reason of system requirements cold load, reached the purpose of economical and energy saving operation.
Description of drawings
The invention will be further described below in conjunction with drawings and Examples, in accompanying drawing:
Fig. 1 is the flow chart according to the central air conditioner system group control method based on load prediction of the present invention;
Fig. 2 is according to the flow chart based on step S3 in the central air conditioner system group control method of load prediction of the present invention;
Fig. 3 is the block schematic diagram according to the central air conditioner system group control device based on load prediction of the present invention.
The specific embodiment
In order to make purpose of the present invention, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, is not intended to limit the present invention.
Central air conditioner system group control method based on load prediction provided by the invention is by increasing Shi Jian ﹠amp on the central air conditioner system monitoring interface; Adding machine temperature matrix table and adding machine temperature correction table calculate best adding machine temperature preset value and/or subtract machine temperature preset value, and current freezing return main's temperature of itself and controller Real-time Collection is compared, with the actual required refrigerator of judgement central air conditioner system and the quantity of subsidiary engine, see also Fig. 1, be the flow chart according to the central air conditioner system group control method based on load prediction of the present invention.The detailed process of said method as shown in Figure 1, concrete steps comprise:
At first, in step S0, Real-time Collection deserves the current running status of the outer temperature of cup, this current freezing return main's temperature and refrigerator, should be noted that step S0 and step S1 in the present invention can implement simultaneously, also can successively implement, in the present embodiment, step S0 implemented before step S1, and those skilled in the art should understand, and did not limit technical scheme of the present invention at this.
Subsequently, at next step S2, receive user's Shu Rushijian ﹠amp; The order of adding machine temperature matrix table and adding machine temperature correction table, wherein, this Shi Jian ﹠amp; Adding machine temperature matrix table comprises time interval, reaches add machine temperature preset value and subtract machine temperature preset value corresponding with this time interval, this adding machine temperature correction table comprises the outdoor temperature scope, reaches add machine temperature correction value and/or subtract machine temperature correction value corresponding with this outdoor temperature scope, should be noted that this Shi Jian ﹠amp; Adding machine temperature matrix table and this adding machine temperature correction table are respectively as shown in Table 1 and Table 2.
in the present embodiment, the Shi Jian ﹠amp shown in table 1, adding machine temperature matrix table comprises time interval, add machine temperature preset value, and subtract machine temperature preset value, with time interval (0.0, 24.00) be divided into 8 sections, wherein, time interval corresponding to 8 sections is respectively (0.0, T1), (T1, T2), (T2, T3), (T3, T4), (T4, T5), (T5, T6), (T7, T8), (T8, 24.00), the machine temperature preset value that adds corresponding to those time intervals is respectively T11, T21, T31, T41, T51, T61, T71, T81, the machine temperature preset value that subtracts corresponding to those time intervals is respectively T12, T22, T32, T42, T52, T62, T72, T82.
in the present invention, operating personnel arrange different adding machine temperature preset value and subtract machine temperature preset value according to the load condition of central air conditioner system, in other embodiment, with time interval (0.0, T1) be example, the span of the T11 that it is corresponding is 10 ℃～15 ℃, the scope of the value of the T12 that it is corresponding is 7 ℃～12 ℃, but must satisfy T12＜T11, generally, the experience of the general basis of operating personnel oneself preferably T11 is set to 13 ℃, T12 is set to 8 ℃, but, also can do corresponding adjustment to adding machine temperature preset value and subtracting machine temperature preset value according to actual conditions, for example, the central air conditioner system of factory's type, operating personnel can add machine temperature preset value and subtract machine temperature preset value according to factory's rule setting of working and resting, when the employee goes to work, can suitably turn adding machine temperature preset value down, can increase fast the quantity of refrigerator and subsidiary engine when the stream of people being increased cause indoor temperature to rise, to reach comfortable environment, when the employee comes off duty or relieves, can suitably tune up adding machine temperature preset value, can reduce fast the quantity of refrigerator and subsidiary engine when the stream of people being reduced cause indoor temperature to descend, to reach energy-conservation purpose.
Table 1
in the present embodiment, adding machine temperature correction table shown in table 2 comprises the outdoor temperature scope, and adding machine temperature correction value, in the present embodiment, with time interval (0.0, T1) be example, suppose that the outdoor temperature scope is respectively (Temp1, Temp2), (Temp2, Temp3), at (Temp1, Temp2) in scope, its corresponding adding machine temperature correction value is TA, at (Temp2, Temp3) in scope, its corresponding adding machine temperature correction value is TB, when outdoor temperature is Temp2, its corresponding adding machine temperature correction value is 0, wherein, Temp1, Temp2, the span of Temp3 is 8 ℃～24 ℃, but must satisfy Temp1＜Temp2＜Temp3, the span of TA is-4 ℃～0 ℃, the span of TB is 0 ℃～4 ℃, generally, the experience of the general basis of operating personnel oneself preferably Temp1 is set to 25 ℃, Temp2 is set to 30 ℃, Temp3 is set to 35 ℃, TA is set to-2 ℃, TB is set to 2 ℃, but, also can do corresponding adjustment to adding machine temperature preset value and subtracting machine temperature preset value according to actual conditions, when outdoor temperature raises, suitably reduce adding machine temperature preset value, when outdoor temperature reduces, suitably increase adding machine temperature preset value.
Table 2
Subsequently, at next step S2, according to current outdoor temperature, this Shi Jian ﹠amp of controller Real-time Collection; Adding machine temperature matrix table and this adding machine temperature correction table are calculated best adding machine temperature preset value and/or subtract machine temperature preset value, and how the below specifically introduces according to current outdoor temperature, this Shi Jian ﹠amp according to different outdoor temperature scopes; Adding machine temperature matrix table and this adding machine temperature correction table are calculated best adding machine temperature preset value, and wherein, OutdoorTemp is current outdoor temperature:
1, when OutdoorTemp≤Temp1,
Add machine temperature=T11+TA, subtract machine temperature=T12+TA;
2, when Temp1＜OutdoorTemp＜Temp2,
Add machine temperature=T11+ (Temp2-OutdoorTemp) * TA/ (Temp2-Temp1),
Subtract machine temperature=T12+ (Temp2-OutdoorTemp) * TA/ (Temp2-Temp1);
3, when OutdoorTemp=Temp2,
Add the machine temperature and subtract the machine temperature and do not proofread and correct;
4, when Temp2＜OutdoorTemp＜Temp3,
Add machine temperature=T11-(OutdoorTemp-Temp2) * TB/ (Temp3-Temp2),
Subtract machine temperature=T12-(OutdoorTemp-Temp2) * TB/ (Temp3-Temp2);
5, when OutdoorTemp 〉=Temp3,
Add machine temperature=T11-TB, subtract machine temperature=T12-TB.
Preferably, according to current running status and the described Shi Jian ﹠amp of this refrigerator; Adding machine temperature matrix table adds machine temperature preset value and subtracts machine temperature preset value and will automatically be adjusted into preset value in corresponding time interval.
Preferably, according to deserve the outer temperature of cup and this adding machine temperature correction table will, the controller automatic calibration adds machine temperature preset value and/or subtracts machine temperature preset value, to calculate best adding machine temperature preset value and/or subtract machine temperature preset value.
Should be noted that, compared with prior art, the invention solves current central air conditioner system and cause the problem of environmental degree of comfort reduction, system energy consumption waste due to outdoor temperature and the probabilistic reason of system requirements cold load, the method does not rely on gerentocratic practical operation level, implementation result is good, can suitably adjust and correction adds machine temperature preset value and/or subtracts machine temperature preset value according to system operational parameters, reach the purpose of economical and energy saving operation.
At last, in step S3, by more best adding machine temperature preset value and/or subtract machine temperature preset value and current freezing return main's temperature of controller Real-time Collection, whether need to increase or reduce the quantity of refrigerator and subsidiary engine to judge central air conditioner system.See also Fig. 2, be the flow chart according to the central air conditioner system group control method step S3 based on load prediction of the present invention.Detailed process as shown in Figure 2, step S3 further comprises:
At first, at step S31, judge this current freezing return main's temperature whether greater than the best add machine temperature preset value, if, execution in step S32, if not, execution in step S34.
Subsequently, at next step S32, receive the order that the user arranges the first Preset Time, wherein, this first Preset Time should be noted that for increasing the startup delay time of refrigerator and subsidiary engine quantity this first Preset Time can arrange voluntarily according to operating personnel's demand, those skilled in the art should understand, and does not repeat them here.
Subsequently, at next step S33, judge whether this first Preset Time arrives, if, start refrigerator and subsidiary engine, if not, step finishes.
Subsequently, at next step S34, judge this current freezing return main's temperature whether less than the best subtract machine temperature preset value, if, execution in step S35, if not, step finishes.
Subsequently, at next step S35, receive the order that the user arranges the second Preset Time, wherein, this second Preset Time should be noted that for reducing the delay time of closing of refrigerator and subsidiary engine quantity this second Preset Time can arrange voluntarily according to operating personnel's demand, those skilled in the art should understand, and does not repeat them here.
Subsequently, at next step S36, judge whether this second Preset Time arrives, if, close refrigerator and subsidiary engine, if not, step finishes.
Should be noted that in other embodiment, can first determining step S34, then determining step S31, those skilled in the art should understand, and repeats no more here.
See also Fig. 3, be the block schematic diagram according to the central air conditioner system group control device based on load prediction of the present invention.as shown in Figure 3, this device comprises receiver module 1, acquisition module 2, respectively with receiver module 1, the computing module 3 that acquisition module 2 connects, and the comparison module 4 that is connected with computing module 3, wherein, computing module 3 comprises the adjustment unit 31 that connects successively, and correcting unit 32, comparison module 4 comprises: the first judging unit 41 that connects successively, the first setting unit 42, the second judging unit 43, start unit 44, the 3rd judging unit 45 that is connected with the first judging unit 41, reach the second setting unit 46 that is connected successively with the 3rd judging unit 45, the 4th judging unit 47, closing unit 48, the below illustrates the effect of various piece:
Receiver module 1 is used for receiving user's Shu Rushijian ﹠amp; The order of adding machine temperature matrix table and adding machine temperature correction table, wherein, this Shi Jian ﹠amp; Adding machine temperature matrix table comprises time interval, reaches add machine temperature preset value and subtract machine temperature preset value corresponding with this time interval, this adding machine temperature correction table comprises the outdoor temperature scope, reaches add machine temperature correction value and/or subtract machine temperature correction value corresponding with this outdoor temperature scope, and above-mentioned Fig. 1, table 1 and table 2 have specifically described Shi Jian ﹠amp; Adding machine temperature matrix table and adding machine temperature correction table, those skilled in the art should understand, and repeats no more here.
acquisition module 2, be used for Real-time Collection and deserve the outer temperature of cup, the current running status of this current freezing return main's temperature and refrigerator, in the present embodiment, but the controller Real-time Collection deserves the outer temperature of cup, the current running status of this current freezing return main's temperature and refrigerator, because before gathering, operating personnel need outdoor mounted temperature sensor or transmitter and on freezing return main also mounting temperature sensor or transmitter, also refrigerator and chilled water pump need be installed, the on off control switch of the subsidiary engine such as cooling water pump and cooling tower, wherein, the equipment of above-mentioned installation all is connected with controller, those skilled in the art should understand, here repeat no more.
Comparison module 4 is used for by more best adding machine temperature preset value and/or subtract machine temperature preset value and current freezing return main's temperature of controller Real-time Collection, whether needs to increase or reduce the quantity of refrigerator and subsidiary engine to judge central air conditioner system.
Adjustment unit 31 is used for current running status and this Shi Jian ﹠amp according to this refrigerator; Adding machine temperature matrix table adds machine temperature preset value and subtracts machine temperature preset value and will automatically be adjusted into preset value in corresponding time interval.
Correcting unit 32 is used for controller and adds machine temperature preset value and/or subtract machine temperature preset value according to deserving the outer temperature of cup and this adding machine temperature correction table automatic calibration, to calculate best adding machine temperature preset value and/or subtract machine temperature preset value.
The first judging unit 41 is used for judging that whether this current freezing return main's temperature adds machine temperature preset value greater than the best.
The first setting unit 42, be used for this current freezing return main's temperature greater than the best add machine temperature preset value the time, receive the order that the user arranges the first Preset Time, wherein, this first Preset Time is for increasing the startup delay time of refrigerator and subsidiary engine quantity, should be noted that, this first Preset Time can arrange voluntarily according to operating personnel's demand, and those skilled in the art should understand, and does not repeat them here.
The second judging unit 43 is used for judging whether this first Preset Time arrives.
Start unit 44 is used for starting refrigerator and subsidiary engine when this first Preset Time arrives.
The 3rd judging unit 45 is used for being not more than in this current freezing return main's temperature best when adding machine temperature preset value, judges that whether this current freezing return main's temperature subtracts machine temperature preset value less than the best.
The second setting unit 46, be used for this current freezing return main's temperature less than the best subtract machine temperature preset value the time, receive the order that the user arranges the second Preset Time, wherein, this second Preset Time should be noted that for reducing the delay time of closing of refrigerator and subsidiary engine quantity this second Preset Time can arrange voluntarily according to operating personnel's demand, those skilled in the art should understand, and does not repeat them here.
The 4th judging unit 47 is used for judging whether this second Preset Time arrives.
Closing unit 48 is used for closing refrigerator and subsidiary engine when this second Preset Time arrives.
The above is only the preferred embodiments of the present invention, is not limited to the present invention, and for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., within all should being included in claim scope of the present invention.
Claims (4)
1. the central air conditioner system group control method based on load prediction, is characterized in that, said method comprising the steps of:
S0. the current outdoor temperature of Real-time Collection, current freezing return main's temperature, and the current running status of refrigerator;
S1. receive user's Shu Rushijian ﹠amp; The order of adding machine temperature matrix table and adding machine temperature correction table, wherein, described Shi Jian ﹠amp; Adding machine temperature matrix table comprises time interval, reaches add machine temperature preset value and subtract machine temperature preset value corresponding with described time interval, and described adding machine temperature correction table comprises the outdoor temperature scope, reaches add machine temperature correction value and/or subtract machine temperature correction value corresponding with described outdoor temperature scope;
S2. according to the current outdoor temperature of controller Real-time Collection, described Shi Jian ﹠amp; Adding machine temperature matrix table, and described adding machine temperature correction table calculate best adding machine temperature preset value and/or subtract machine temperature preset value;
S3. by more best adding machine temperature preset value and/or subtract machine temperature preset value and current freezing return main's temperature of controller Real-time Collection, whether need to increase or reduce the quantity of refrigerator and subsidiary engine to judge central air conditioner system;
Described step S2 further comprises:
Current running status and described Shi Jian ﹠amp according to described refrigerator; Adding machine temperature matrix table adds machine temperature preset value and subtracts machine temperature preset value and will automatically be adjusted into preset value in corresponding time interval;
Controller adds machine temperature preset value and/or subtracts machine temperature preset value according to described current outdoor temperature and described adding machine temperature correction table automatic calibration, to calculate best adding machine temperature preset value and/or subtract machine temperature preset value.
2. the central air conditioner system group control method based on load prediction according to claim 1, is characterized in that, described step S3 further comprises:
S31. judge described current freezing return main's temperature whether greater than the best add machine temperature preset value, if, execution in step S32, if not, execution in step S34;
S32. receive the order that the user arranges the first Preset Time, wherein, described the first Preset Time is for increasing the startup delay time of refrigerator and subsidiary engine quantity;
S33. judge whether described the first Preset Time arrives, if, start refrigerator and subsidiary engine, if not, step finishes;
S34. judge described current freezing return main's temperature whether less than the best subtract machine temperature preset value, if, execution in step S35, if not, step finishes;
S35. receive the order that the user arranges the second Preset Time, wherein, described the second Preset Time is for reducing the delay time of closing of refrigerator and subsidiary engine quantity;
S36. judge whether described the second Preset Time arrives, if, close refrigerator and subsidiary engine, if not, step finishes.
3. the central air conditioner system group control device based on load prediction, is characterized in that, described device specifically comprises successively and to connect:
Be used for receiving user's Shu Rushijian ﹠amp; The receiver module of the order of adding machine temperature matrix table and adding machine temperature correction table, wherein, described Shi Jian ﹠amp; Adding machine temperature matrix table comprises time interval, reaches add machine temperature preset value and subtract machine temperature preset value corresponding with described time interval, and described adding machine temperature correction table comprises the outdoor temperature scope, reaches add machine temperature correction value and/or subtract machine temperature correction value corresponding with described outdoor temperature scope;
Be used for according to the current outdoor temperature of controller Real-time Collection, described Shi Jian ﹠amp; Adding machine temperature matrix table and described adding machine temperature correction table are calculated the best computing module that adds machine temperature preset value and/or subtract machine temperature preset value;
Be used for by more best adding machine temperature preset value and/or subtract machine temperature preset value and current freezing return main's temperature of controller Real-time Collection, whether need to increase or reduce the comparison module of the quantity of refrigerator and subsidiary engine to judge central air conditioner system;
Described device also comprises:
Be connected and be used for the described current outdoor temperature of Real-time Collection, described current freezing return main's temperature, and the acquisition module of the current running status of refrigerator with described computing module;
Described computing module also comprises connection successively:
Be used for current running status and described Shi Jian ﹠amp according to described refrigerator; Adding machine temperature matrix table adds machine temperature preset value and subtracts the adjustment unit that machine temperature preset value will be adjusted into the preset value in corresponding time interval automatically;
Be used for controller and add machine temperature preset value and/or subtract machine temperature preset value according to described current outdoor temperature and described adding machine temperature correction table automatic calibration, to calculate the best correcting unit that adds machine temperature preset value and/or subtract machine temperature preset value.
4. the central air conditioner system group control device based on load prediction according to claim 3, is characterized in that, described comparison module comprises:
Be used for judging that described current freezing return main's temperature is whether greater than first judging unit that adds machine temperature preset value of the best;
Be connected with described the first judging unit and be used for described current freezing return main's temperature greater than the best add machine temperature preset value the time, receive the first setting unit that the user arranges the order of the first Preset Time, wherein, described the first Preset Time is for increasing the startup delay time of refrigerator and subsidiary engine quantity;
Be connected and be used for judging the second judging unit whether described the first Preset Time arrives with described the first setting unit;
Be connected and be used for starting the start unit of refrigerator and subsidiary engine when described the first Preset Time arrives with described the second judging unit;
Be connected and be used for being not more than in described current freezing return main's temperature best when adding machine temperature preset value with described the first judging unit, judge that described current freezing return main's temperature is whether less than the 3rd judging unit that subtracts machine temperature preset value of the best;
Be connected with described the 3rd judging unit and be used for described current freezing return main's temperature less than the best subtract machine temperature preset value the time, receive the second setting unit that the user arranges the order of the second Preset Time, wherein, described the second Preset Time is for reducing the delay time of closing of refrigerator and subsidiary engine quantity;
Be connected and be used for judging the 4th judging unit whether described the second Preset Time arrives with described the second setting unit;
Be connected with described the 4th judging unit and be used for closing the closing unit of refrigerator and subsidiary engine when described the second Preset Time arrives.
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| CN102679496B (en) * | 2012-05-14 | 2016-07-06 | 赖正伦 | A kind of load follow-up control method for central air-conditioning |
| CN105363298B (en) * | 2014-08-15 | 2017-11-03 | 台达电子工业股份有限公司 | Have the air regenerating device and its detection method of the dirty detection function of filter screen |
| US20160061472A1 (en) * | 2014-09-02 | 2016-03-03 | Samsung Electronics Co., Ltd. | Method and device for controlling room temperature and humidity |
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| CN112379648B (en) * | 2020-11-17 | 2022-06-03 | 青岛北冰洋冷暖能源科技有限公司 | Control method for judging whether unit is increased or decreased in cold station control system |
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