CN113654198A - Energy efficiency management and control system of central air conditioner - Google Patents
Energy efficiency management and control system of central air conditioner Download PDFInfo
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 90
- 238000004378 air conditioning Methods 0.000 claims abstract description 54
- 238000012937 correction Methods 0.000 claims abstract description 33
- 239000000498 cooling water Substances 0.000 claims abstract description 25
- 238000012545 processing Methods 0.000 claims description 59
- 238000012795 verification Methods 0.000 claims description 23
- 238000005265 energy consumption Methods 0.000 claims description 18
- 230000004927 fusion Effects 0.000 claims description 15
- 238000004364 calculation method Methods 0.000 claims description 13
- 230000010365 information processing Effects 0.000 claims description 13
- 238000001816 cooling Methods 0.000 claims description 9
- 238000007619 statistical method Methods 0.000 claims description 8
- 238000012544 monitoring process Methods 0.000 claims description 6
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- 238000007726 management method Methods 0.000 description 15
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- 239000000284 extract Substances 0.000 description 4
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- 230000004048 modification Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000008400 supply water Substances 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013523 data management Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
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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
- F24F11/50—Control or safety arrangements characterised by user interfaces or communication
- F24F11/52—Indication arrangements, e.g. displays
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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
- F24F11/50—Control or safety arrangements characterised by user interfaces or communication
- F24F11/56—Remote control
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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
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Abstract
The invention discloses an energy efficiency control system of a central air conditioner, belonging to the technical field of air conditioner control and comprising a central air conditioner energy efficiency control system; the central air-conditioning energy efficiency control system is provided with a central air-conditioning chilled water system energy-saving control system, a central air-conditioning cooling water system energy-saving control system and a central air-conditioning water chiller energy-saving control system, wherein the central air-conditioning chilled water system energy-saving control system achieves the purpose of energy saving based on a load prediction and fuzzy control technology, the central air-conditioning cooling water system energy-saving control system achieves the purpose of energy saving based on the fuzzy control technology, meanwhile, a fuzzy control rule is corrected in real time by combining control quantity correction, the central air-conditioning water chiller energy-saving control system achieves the purpose of energy saving based on the load prediction, multiple systems achieve the matching of energy output and requirements, and the energy-saving control effect is good.
Description
Technical Field
The invention belongs to the technical field of air conditioner control, and particularly relates to an energy efficiency control system of a central air conditioner.
Background
With the gradual improvement of living standard of people, the central air conditioner is widely applied to modern buildings, energy efficiency control becomes a hot problem of research of all industries of the whole society today with the increasing shortage of energy, and the energy consumption of the central air conditioning system occupies a large proportion in the building, so that the energy efficiency control problem of the central air conditioning system is more concerned.
The energy consumption management and control system of the existing central air conditioner is poor in energy-saving control effect, interfaces of most energy efficiency data management systems are messy, functions are few, and management of energy efficiency data is inconvenient for managers.
Disclosure of Invention
To solve the problems set forth in the background art described above. The invention provides an energy efficiency control system of a central air conditioner, which has the characteristics of realizing the matching of energy output and requirements, having good energy-saving control effect and being convenient for managers to manage energy efficiency data of the central air conditioner.
In order to achieve the purpose, the invention provides the following technical scheme: the energy efficiency control system of the central air conditioner comprises a central air conditioner energy efficiency control system, wherein the central air conditioner energy efficiency control system comprises a central air conditioner chilled water system energy-saving control system, a central air conditioner cooling water system energy-saving control system, a central air conditioner water chilling unit energy-saving control system and a central air conditioner energy efficiency management system, and output ports of the central air conditioner chilled water system energy-saving control system, the central air conditioner cooling water system energy-saving control system and the central air conditioner water chilling unit energy-saving control system are respectively connected with the central air conditioner energy efficiency management system.
Further, the energy-saving control system of the chilled water system of the central air conditioner comprises an information processing and load calculating module, wherein an input port of the information processing and load calculating module is respectively connected with a water supply temperature sensor, a water return temperature sensor, a water flow sensor and a water supply and return pressure difference sensor, an output port of the information processing and load calculating module is respectively connected with a first load forecasting module, a load database and a first fuzzy reasoning module, input ports of the first load forecasting module and the first fuzzy reasoning module are respectively connected with the load database, input ports of the first load forecasting module and the load database are connected with an environment temperature sensor, an input port of the first fuzzy reasoning module is connected with a first fuzzy control rule base, and output ports of the first load forecasting module and the first fuzzy reasoning module are connected with a fusion correction processing module, the input port of the fusion correction processing module is connected with a first protection limit library, and the output port of the fusion correction processing module is connected with a first actuator.
Further, the energy-saving control system of the central air-conditioning cooling water system comprises a data processing and COPs ' calculating module, wherein an input port of the data processing and COPs ' calculating module is respectively connected with a water inlet temperature sensor, a water outlet temperature sensor, a wet bulb temperature sensor, a water chilling unit power sensor, a cooling water pump power sensor, a cooling fan power sensor and a chilled water system parameter input module, an output port of the data processing and COPs ' calculating module is respectively connected with a database and a second fuzzy reasoning module, an input port of the second fuzzy reasoning module is connected with the database, an output port of the second fuzzy reasoning module is respectively connected with a second numerical verification module and a control quantity correcting module, an input port of the second numerical verification module is connected with a second protection limit value base, and an output port of the second numerical verification module is connected with a second actuator, an output port of the control quantity correction module is connected with a rule correction module, an output port of the rule correction module is connected with a second fuzzy control rule base, and an output port of the second fuzzy control rule base is connected with a second fuzzy inference module.
Further, the energy-saving control system of the central air-conditioning water chilling unit comprises a load calculation module, an input port of the load calculation module is connected with a current load sensor, an output port of the load calculation module is respectively connected with a historical load database and a third load prediction module, an input port of the third load prediction module is connected with the historical load database, an output port of the third load prediction module is connected with a third numerical verification module, an input port of the third numerical verification module is connected with a third protection limit value base, and an output port of the third numerical verification module is connected with a third actuator.
Further, the energy efficiency management system of the central air conditioner comprises a data processing module, wherein an input port of the data processing module is connected with a data acquisition module, an input port of the data acquisition module is respectively connected with a load database, an input port of the data acquisition module is connected with the database and a historical load database, an input port and an output port of the data processing module are respectively connected with a subentry metering module, a standard energy consumption setting module, an energy efficiency subentry chart generating module and a statistical analysis module, an output port of the subentry metering module is connected with an energy efficiency data display module, an output port of the data processing module is connected with the energy efficiency data display module, an input port of the energy efficiency data display module is connected with a remote real-time monitoring module, an output port of the data processing module is respectively connected with an energy consumption early warning module and an energy efficiency subentry storage module, and the output port of the energy efficiency subentry storage module is respectively connected with the energy efficiency subentry chart generation module and the statistical analysis module.
Compared with the prior art, the invention has the beneficial effects that:
1. the central air-conditioning energy efficiency control system is provided with a central air-conditioning chilled water system energy-saving control system, a central air-conditioning cooling water system energy-saving control system and a central air-conditioning water chiller energy-saving control system, wherein the central air-conditioning chilled water system energy-saving control system achieves the purpose of energy saving based on a load prediction and fuzzy control technology, the central air-conditioning cooling water system energy-saving control system achieves the purpose of energy saving based on the fuzzy control technology, meanwhile, a fuzzy control rule is corrected in real time by combining control quantity correction, the central air-conditioning water chiller energy-saving control system achieves the purpose of energy saving based on the load prediction, multiple systems achieve the matching of energy output and requirements, and the energy-saving control effect is good.
2. The central air-conditioning energy efficiency management and control system is also provided with a central air-conditioning energy efficiency management system, the central air-conditioning energy efficiency management system has the functions of subentry metering, subentry display, subentry chart display, energy consumption early warning, periodic statistical analysis and remote monitoring, and not only can be convenient for managers to manage energy efficiency data of the central air-conditioning, but also can be convenient for managers to find out timely processing when the energy efficiency of the central air-conditioning fails, and meanwhile, the managers can remotely monitor the energy consumption operation of the central air-conditioning anytime and anywhere, so that the practicability and the market competitiveness of the system are improved.
Drawings
FIG. 1 is a system block diagram of a central air-conditioning energy efficiency management and control system according to the present invention;
FIG. 2 is a system block diagram of the energy-saving control system of the chilled water system of the central air conditioner;
FIG. 3 is a schematic diagram of an energy-saving control system of a chilled water system of a central air conditioner according to the present invention;
FIG. 4 is a system block diagram of the energy-saving control system of the central air-conditioning cooling water system according to the present invention;
FIG. 5 is a schematic diagram of an energy-saving control system of a central air-conditioning cooling water system according to the present invention;
FIG. 6 is a system block diagram of the energy-saving control system of the central air-conditioning water chilling unit;
FIG. 7 is a system block diagram of a central air-conditioning energy efficiency management system according to the present invention;
in the figure: 1. a central air-conditioning energy efficiency control system;
11. the energy-saving control system of the chilled water system of the central air conditioner; 110. a water supply temperature sensor; 111. a first load prediction module; 112. a backwater temperature sensor; 113. a load database; 114. the information processing and load calculating module; 115. a water flow sensor; 116. a first fuzzy inference module; 117. a water supply and return differential pressure sensor; 118. a first fuzzy control rule base; 119. a first actuator; 120. a fusion correction processing module; 121. an ambient temperature sensor; 122. a first protection limit library;
13. a central air-conditioning cooling water system energy-saving control system; 130. an inlet water temperature sensor; 131. an effluent temperature sensor; 132. a database; 133. a wet bulb temperature sensor; 134. a data processing and COPs' calculating module; 135. a water chilling unit power sensor; 136. a second fuzzy inference module; 137. a second fuzzy control rule base; 138. a cooling water pump power sensor; 139. a cooling fan power sensor; 140. a rule modification module; 141. a control amount correction module; 142. a second actuator; 143. a second numerical verification module; 144. a second protection limit library; 145. a chilled water system parameter input module;
15. the energy-saving control system of the central air-conditioning water chilling unit; 150. a current load sensor; 151. a load calculation module; 152. a historical load database; 153. a third protection limit library; 154. a third actuator; 155. a third value verification module; 156. a third load prediction module;
16. a central air-conditioning energy efficiency management system; 160. a data acquisition module; 161. an energy efficiency itemized chart generating module; 162. a statistical analysis module; 163. an energy efficiency subentry storage module; 164. a data processing module; 165. a subentry metering module; 166. an energy efficiency data display module; 167. an energy consumption early warning module; 168. a standard energy consumption setting module; 169. and a remote real-time monitoring module.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-7, the present invention provides the following technical solutions: the energy efficiency control system of the central air conditioner comprises a central air conditioner energy efficiency control system 1, wherein the central air conditioner energy efficiency control system 1 comprises a central air conditioner chilled water system energy-saving control system 11, a central air conditioner cooling water system energy-saving control system 13, a central air conditioner water chilling unit energy-saving control system 15 and a central air conditioner energy efficiency management system 16, and output ports of the central air conditioner chilled water system energy-saving control system 11, the central air conditioner cooling water system energy-saving control system 13 and the central air conditioner water chilling unit energy-saving control system 15 are respectively connected with the central air conditioner energy efficiency management system 16.
Specifically, the energy-saving control system 11 of the chilled water system of the central air conditioner comprises an information processing and load calculating module 114, an input port of the information processing and load calculating module 114 is respectively connected with a water supply temperature sensor 110, a return water temperature sensor 112, a water flow sensor 115 and a water supply and return water differential pressure sensor 117, an output port of the information processing and load calculating module 114 is respectively connected with a first load predicting module 111, a load database 113 and a first fuzzy reasoning module 116, input ports of the first load predicting module 111 and the first fuzzy reasoning module 116 are respectively connected with the load database 113, input ports of the first load predicting module 111 and the load database 113 are connected with an ambient temperature sensor 121, an input port of the first fuzzy reasoning module 116 is connected with a first fuzzy control rule base 118, output ports of the first load predicting module 111 and the first fuzzy reasoning module 116 are connected with a fusion correction processing module 120, the input port of the fusion correction processing module 120 is connected to a first protection limit library 122, and the output port of the fusion correction processing module 120 is connected to a first actuator 119.
When the environment temperature and the load at the tail end of the air conditioner are changed, the temperature, the flow and the pressure difference of the supply water and the return water of each path of chilled water are also changed, the temperature, the flow and the pressure difference of the supply water and the return water of each path of chilled water are detected by the water supply temperature sensor 110, the return water temperature sensor 112, the water flow sensor 115 and the water supply and return water pressure difference sensor 117 and fed back to the information processing and load calculating module 114, the information processing and load calculating module 114 processes and calculates the fed back parameters and feeds back the calculated load to the load database 113 and the first load predicting module 111 respectively, the environment temperature sensor 121 feeds back the detected environment temperature parameters to the load database 113 and the first load predicting module 111 respectively, the first load predicting module 111 corrects partial factors according to the strong correlation between the daily load and the daily average air temperature of the air conditioner and refers to the hourly load coefficient in the load database 113, estimating future hourly load and daily total load of the air conditioning system, feeding the estimated data back to a fusion correction processing module 120, feeding the processed information back to a first fuzzy reasoning module 116 by an information processing and load calculating module 114, calculating the fed-back real-time data and historical operation data of the system in a load database 113 by the first fuzzy reasoning module 116 according to control rules in a first fuzzy control rule base 118, estimating the refrigerating capacity required by the air conditioning load at the tail end of the air conditioner and the optimal values of temperature, flow and pressure difference of supply and return water of each path of chilled water, feeding the estimated results back to the fusion correction processing module 120, estimating the future hourly load and daily total load of the air conditioning system by a fusion correction processing module 120 by the first load predicting module 111 and estimating the refrigerating capacity required by the air conditioning load at the tail end of the air conditioner by the first fuzzy reasoning module 116, and supplying and returning water temperature, return water temperature of each path of chilled water, And performing fusion correction on the optimal values of the flow and the pressure difference to obtain a final result, extracting protection limit data in a first protection limit database 122 for comparison, if the optimal values of the flow and the pressure difference are within the protection limit, sending an instruction to a first actuator 119 by a fusion correction processing module 120, adjusting the output frequency of each frequency converter by the first actuator 119, controlling the rotating speed of the chilled water pump, and changing the flow to enable the temperature, the flow and the pressure difference of the supply and return water of the chilled water system to operate at optimal values.
Specifically, the energy-saving control system 13 of the central air-conditioning cooling water system comprises a data processing and COPs ' calculating module 134, an input port of the data processing and COPs ' calculating module 134 is respectively connected with a water inlet temperature sensor 130, a water outlet temperature sensor 131, a wet bulb temperature sensor 133, a water chilling unit power sensor 135, a cooling water pump power sensor 138, a cooling fan power sensor 139 and a chilled water system parameter input module 145, an output port of the data processing and COPs ' calculating module 134 is respectively connected with a database 132 and a second fuzzy inference module 136, an input port of the second fuzzy inference module 136 is connected with the database 132, an output port of the second fuzzy inference module 136 is respectively connected with a second numerical value verification module 143 and a control quantity correction module 141, an input port of the second numerical value verification module 143 is connected with a second protection limit value database 144, an output port of the second numerical value verification module 143 is connected with a second actuator 142, an output port of the control quantity correction module 141 is connected with the rule correction module 140, an output port of the rule correction module 140 is connected with the second fuzzy control rule base 137, and an output port of the second fuzzy control rule base 137 is connected with the second fuzzy inference module 136.
When the environmental temperature and the load at the tail end of the air conditioner change, the load rate of the central air conditioner main unit changes along with the change of the load rate, the optimal heat conversion temperature of the main unit condenser also changes along with the change of the load rate, the detected inlet water temperature, outlet water temperature, wet bulb temperature, cold water unit power sensor 135, cooling water pump power sensor 138 and cooling fan power sensor 139 feed back the detected inlet water temperature, outlet water temperature, wet bulb temperature, cold water unit power, cooling water pump power and cooling fan power parameters to the data processing and COPs 'calculation module 134, the chilled water system parameter input module 145 feeds back the chilled water system related parameters to the data processing and COPs' calculation module 134, the data processing and COPs 'calculation module 134 processes the fed-back parameters and calculates COPs', and feeds back the parameters and the calculated results to the database 132 and the second fuzzy inference module 136 respectively, the second fuzzy inference module 136 calculates the fed back real-time data and the historical operation data of the system in the database 132 according to the control rules in the second fuzzy control rule base 137, estimates the optimal heat conversion temperature of the host condenser and the optimal outlet and inlet temperatures of the cooling water, and feeds back the estimated results to the second numerical verification module 143 and the control quantity correction module 141 respectively, the second numerical verification module 143 extracts the protection limit data in the second protection limit base 144 for comparison, if the protection limit data are within the protection limit value, the second numerical verification module 143 sends an instruction to the second actuator 142, the second actuator 142 adjusts the output frequency of the cooling water pump and the cooling tower fan frequency converter, controls the cooling water pump and the cooling tower fan rotating speed, dynamically adjusts the flow rate of the cooling water and the air volume of the cooling tower fan, and makes the inlet and outlet temperatures of the cooling water approximate to the optimal values given by the fuzzy controller, meanwhile, the control quantity correction module 141 corrects the control quantity, and feeds back the correction result to the rule correction module 140, and the rule correction module 140 corrects the control rule in the second fuzzy control rule base 137.
Specifically, the energy-saving control system 15 of the central air-conditioning water chilling unit includes a load calculation module 151, an input port of the load calculation module 151 is connected with a current load sensor 150, an output port of the load calculation module 151 is respectively connected with a historical load database 152 and a third load prediction module 156, an input port of the third load prediction module 156 is connected with the historical load database 152, an output port of the third load prediction module 156 is connected with a third numerical verification module 155, an input port of the third numerical verification module 155 is connected with a third protection limit value base 153, and an output port of the third numerical verification module 155 is connected with a third actuator 154.
Specifically, the central air-conditioning energy efficiency management system 16 includes a data processing module 164, an input port of the data processing module 164 is connected with a data acquisition module 160, an input port of the data acquisition module 160 is respectively connected with the load database 113, the input port is connected with the database 132 and the historical load database 152, an input port and an output port of the data processing module 164 are respectively connected with a subentry metering module 165, a standard energy consumption setting module 168, an energy efficiency subentry chart generation module 161 and a statistical analysis module 162, an output port of the subentry metering module 165 is connected with an energy efficiency data display module 166, an output port of the data processing module 164 is connected with the energy efficiency data display module 166, an input port of the energy efficiency data display module 166 is connected with a remote real-time monitoring module 169, an output port of the data processing module 164 is respectively connected with an energy consumption early warning module 167 and an energy efficiency subentry storage module 163, the output port of the energy efficiency item storage module 163 is connected to the energy efficiency item chart generation module 161 and the statistical analysis module 162, respectively.
The data acquisition module 160 respectively acquires real-time data of the load database 113, the database 132 and the historical load database 152, and feeds the acquired data back to the data processing module 164, the data processing module 164 feeds the fed-back data back to the itemizing metering module 165, the itemizing metering module 165 performs itemizing metering on the data, and feeds the itemized metered data back to the energy efficiency data display module 166 and the data processing module 164, respectively, the energy efficiency data display module 166 displays the itemized metered data, the data processing module 164 extracts standard energy consumption set in the standard energy consumption setting module 168 to compare with corresponding item metered data, if the metered data is within the standard energy consumption, the data processing module 164 does not act, if the metered data exceeds the standard energy consumption, the data processing module 164 sends an instruction to the energy consumption early warning module 167, the energy consumption early warning module 167 alerts managers, so that the manager can perform subsequent processing, meanwhile, the data processing module 164 feeds back the itemized data to the energy efficiency itemization storage module 163, the energy efficiency itemization storage module 163 stores the itemized data, the data processing module 164 sends an instruction to the energy efficiency itemization chart generation module 161 in real time, the energy efficiency itemization chart generation module 161 extracts the data in the energy efficiency itemization storage module 163 to perform itemization chart generation and feeds back the generated itemization chart to the data processing module 164, the data processing module 164 feeds back the generated itemization chart to the energy efficiency data display module 166, the energy efficiency data display module 166 displays the generated itemization chart for the manager to view, the data processing module 164 sends an instruction to the itemization storage module 163 periodically, the energy efficiency itemization storage module 163 extracts the data in the energy efficiency itemization storage module 163 to perform equal proportion and ring proportion on the total energy efficiency of each device and system according to the year, month and day, and automatically generates a diagnosis report, the energy efficiency subentry storage module 163 feeds back the comparison result and the automatic diagnosis report to the data processing module 164, the data processing module 164 feeds back the comparison result and the automatic diagnosis report to the energy efficiency data display module 166, the energy efficiency data display module 166 displays the comparison result and the automatic diagnosis report so that the manager can perform subsequent processing, and the manager can log in the remote real-time monitoring module 169 through a mobile phone to check the content of the energy efficiency data display module 166.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. The utility model provides a central air conditioning's efficiency management and control system, includes central air conditioning efficiency management and control system (1), its characterized in that: the energy-saving control system for the central air-conditioning water chiller comprises a central air-conditioning chilled water system energy-saving control system (11), a central air-conditioning chilled water system energy-saving control system (13), a central air-conditioning water chiller energy-saving control system (15) and a central air-conditioning energy-efficiency management system (16), wherein output ports of the central air-conditioning chilled water system energy-saving control system (11), the central air-conditioning chilled water system energy-saving control system (13) and the central air-conditioning water chiller energy-saving control system (15) are respectively connected with the central air-conditioning energy-efficiency management system (16).
2. The energy efficiency control system of the central air conditioner according to claim 1, characterized in that: the energy-saving control system (11) of the chilled water system of the central air conditioner comprises an information processing and load calculating module (114), wherein an input port of the information processing and load calculating module (114) is respectively connected with a water supply temperature sensor (110), a return water temperature sensor (112), a water flow sensor (115) and a return water supply and return pressure difference sensor (117), an output port of the information processing and load calculating module (114) is respectively connected with a first load forecasting module (111), a load database (113) and a first fuzzy reasoning module (116), input ports of the first load forecasting module (111) and the first fuzzy reasoning module (116) are respectively connected with the load database (113), input ports of the first load forecasting module (111) and the load database (113) are connected with an environment temperature sensor (121), and an input port of the first fuzzy reasoning module (116) is connected with a first fuzzy control rule base (118), the output ports of the first load prediction module (111) and the first fuzzy inference module (116) are connected with a fusion correction processing module (120), the input port of the fusion correction processing module (120) is connected with a first protection limit database (122), and the output port of the fusion correction processing module (120) is connected with a first actuator (119).
3. The energy efficiency control system of the central air conditioner according to claim 2, characterized in that: the energy-saving control system (13) of the central air-conditioning cooling water system comprises a data processing and COPs ' calculating module (134), wherein an input port of the data processing and COPs ' calculating module (134) is respectively connected with a water inlet temperature sensor (130), a water outlet temperature sensor (131), a wet bulb temperature sensor (133), a water chilling unit power sensor (135), a cooling water pump power sensor (138), a cooling fan power sensor (139) and a chilled water system parameter input module (145), an output port of the data processing and COPs ' calculating module (134) is respectively connected with a database (132) and a second fuzzy reasoning module (136), an input port of the second fuzzy reasoning module (136) is connected with the database (132), an output port of the second fuzzy reasoning module (136) is respectively connected with a second numerical verification module (143) and a control quantity correcting module (141), an input port of the second numerical verification module (143) is connected with a second protection limit library (144), an output port of the second numerical verification module (143) is connected with a second actuator (142), an output port of the controlled variable correction module (141) is connected with a rule correction module (140), an output port of the rule correction module (140) is connected with a second fuzzy control rule library (137), and an output port of the second fuzzy control rule library (137) is connected with a second fuzzy inference module (136).
4. The energy efficiency control system of the central air conditioner according to claim 3, characterized in that: the energy-saving control system (15) of the central air-conditioning water chilling unit comprises a load calculation module (151), an input port of the load calculation module (151) is connected with a current load sensor (150), an output port of the load calculation module (151) is respectively connected with a historical load database (152) and a third load prediction module (156), an input port of the third load prediction module (156) is connected with the historical load database (152), an output port of the third load prediction module (156) is connected with a third numerical verification module (155), an input port of the third numerical verification module (155) is connected with a third protection limit value library (153), and an output port of the third numerical verification module (155) is connected with a third actuator (154).
5. The energy efficiency control system of the central air conditioner according to claim 4, characterized in that: the central air-conditioning energy efficiency management system (16) comprises a data processing module (164), an input port of the data processing module (164) is connected with a data acquisition module (160), an input port of the data acquisition module (160) is respectively connected with a load database (113), a database (132) and a historical load database (152), an input port and an output port of the data processing module (164) are respectively connected with a subentry metering module (165), a standard energy consumption setting module (168), an energy efficiency subentry chart generating module (161) and a statistical analysis module (162), an output port of the subentry metering module (165) is connected with an energy efficiency data display module (166), an output port of the data processing module (164) is connected with the energy efficiency data display module (166), an input port of the energy efficiency data display module (166) is connected with a remote real-time monitoring module (169), the output port of the data processing module (164) is respectively connected with an energy consumption early warning module (167) and an energy efficiency item storage module (163), and the output port of the energy efficiency item storage module (163) is respectively connected with an energy efficiency item chart generation module (161) and a statistical analysis module (162).
Priority Applications (1)
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| CN115682572A (en) * | 2022-11-07 | 2023-02-03 | 珠海格力电器股份有限公司 | Chilled water unit load determining and loading and unloading control method, device and equipment |
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| CN115682572A (en) * | 2022-11-07 | 2023-02-03 | 珠海格力电器股份有限公司 | Chilled water unit load determining and loading and unloading control method, device and equipment |
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