CN119022425B - Air conditioning system - Google Patents
Air conditioning systemInfo
- Publication number
- CN119022425B CN119022425B CN202411217857.9A CN202411217857A CN119022425B CN 119022425 B CN119022425 B CN 119022425B CN 202411217857 A CN202411217857 A CN 202411217857A CN 119022425 B CN119022425 B CN 119022425B
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- air conditioning
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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
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
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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
- F24F11/56—Remote control
- F24F11/58—Remote control using Internet communication
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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
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
- F24F11/74—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity
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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
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Signal Processing (AREA)
- Human Computer Interaction (AREA)
- Fluid Mechanics (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention discloses an air conditioning system which comprises a plurality of air conditioning devices in communication connection, a processing device which comprises a fusion load calculation module and a setting temperature correction module, wherein the fusion load calculation module is used for calculating fusion loads of the current use environment, the fusion loads are calculated based on power, use factors and demand factors of the plurality of air conditioning devices, the use factors are the ratio of the use time of the air conditioning devices in a setting period to the set period duration, the demand factors are the ratio of actual power consumption to rated power consumption of the air conditioning devices in the setting period, and the setting temperature correction module is used for dynamically adjusting the setting temperature of the current use environment according to the fusion loads so as to enable the setting temperature of the current use environment to be matched with the fusion loads. By integrating load calculation, the power, the use factor and the demand factor of all the equipment can be comprehensively integrated, the optimal set temperature of the current use environment can be determined, and the cooperative work and the minimum energy consumption among all the air conditioning equipment are ensured.
Description
Technical Field
The invention relates to the technical field of air conditioning, in particular to an air conditioning system.
Background
AQI (Air Quality Index), also known as an air quality index, is an index for evaluating and displaying the quality of indoor air, which is used to indicate the cleanliness of indoor air.
Part of air conditioning equipment in the prior art has an air quality monitoring function, and can display indoor AQI values in real time through a human-computer interaction interface, so that a user can know and improve indoor air quality, and a feedback loop for detection control is formed. According to indoor AQI numerical value, intelligent regulation air conditioning equipment's running state, including temperature, humidity, wind speed etc. to optimize indoor air quality and improve energy utilization efficiency, ensure that air conditioning equipment is realizing energy-conservation and intelligent control when providing comfortable indoor environment.
However, with the widespread use of smart home, as a whole, the load of a building is not only dependent on one air conditioning apparatus, and thus there are cases where a plurality of air conditioning apparatuses are used to maintain ideal indoor environmental conditions under the same environment, but only one air conditioning apparatus is operated in the energy saving mode. In this case, the energy consumption that may be generated may exceed the energy consumption of the air conditioning apparatus operating in the normal mode, and the effect of actually saving energy cannot be achieved.
The above information disclosed in this background section is only for enhancement of understanding of the background section of the application and therefore it may not form the prior art that is already known to those of ordinary skill in the art.
Disclosure of Invention
Aiming at the problem that in the same environment, the air conditioning equipment which is operated in an energy-saving mode by adopting redundant air conditioning equipment is possibly adopted to maintain ideal indoor environment conditions, but the energy consumption is increased, and the real energy-saving effect cannot be achieved, an air conditioning system is designed and provided.
The air conditioning system comprises a plurality of air conditioning devices which are connected in a communication way, wherein at least one air conditioning device can adjust the indoor environment temperature of the current use environment.
In one or more embodiments of the present application, the air conditioning system further includes a processing device including a fusion load calculation module and a set temperature correction module.
In one or more embodiments of the present application, the fusion load calculation module is configured to calculate a fusion load of a current use environment, where the fusion load is calculated based on power, a usage factor and a demand factor of a plurality of air conditioning devices, where the usage factor is a ratio of a usage time of the air conditioning devices in a set period to a set period duration, and the demand factor is a ratio of actual power consumption and rated power consumption of the air conditioning devices in the set period.
In one or more embodiments of the present application, the setting temperature correction module is configured to dynamically adjust the setting temperature of the current use environment according to the fusion load so as to match the setting temperature of the current use environment with the fusion load.
In one or more embodiments of the present application, the set temperature correction module includes a setting unit configured to set a boundary comfort temperature that can be maintained by a critical load as a set temperature of a current use environment when the fusion load exceeds the critical load, and a dynamic adjustment unit configured to calculate a dynamic set temperature according to the boundary comfort temperature that can be maintained by the critical load and the fusion load when the fusion load does not exceed the critical load, and set the dynamic set temperature as the set temperature of the current use environment.
In one or more embodiments of the present application, the setting unit is configured to perform, when the fusion load exceeds a critical load, a step of taking, as a setting temperature of a current use environment, a boundary comfort temperature that can be maintained by the critical load, when the fusion load is lower than a critical load lower limit threshold value, an upper boundary comfort temperature that can be maintained by the critical load, and, when the fusion load is higher than the critical load upper limit threshold value, a lower boundary comfort temperature that can be maintained by the critical load, as a setting temperature of the current use environment.
In one or more embodiments of the present application, the dynamic adjustment unit is configured to calculate a dynamic set temperature from a critical load and a fusion load when the fusion load does not exceed the critical load, and to calculate an estimated set temperature change rate due to a load change based on a difference between an upper limit boundary comfort temperature and a lower limit boundary comfort temperature that can be maintained by the critical load and a difference between an upper limit threshold and a lower limit threshold of the critical load, calculate an offset of the fusion load with respect to the upper limit threshold of the critical load based on a difference between the fusion load and the upper limit threshold of the critical load, and calculate the dynamic set temperature based on a product of the set temperature change rate and the offset and a lower limit boundary comfort temperature that can be maintained under the current load condition, with the dynamic set temperature as a set temperature of the current use environment.
In one or more embodiments of the application, the fused load is the sum of the products of the power, usage factor and demand factor of the plurality of air conditioning devices.
In one or more embodiments of the application, at least one of the air conditioning devices may adjust the indoor air quality of the current use environment.
In one or more embodiments of the present application, the processing apparatus further includes:
And the starting confirmation module is configured to determine the starting and stopping of the plurality of air conditioning devices by adopting an optimization algorithm with the aim of enabling the total energy consumption of the air conditioning system to meet the preset energy consumption condition and the air quality index to meet the preset air quality condition.
In one or more embodiments of the application, at least one of the air conditioning devices may adjust the humidity of the current use environment.
In one or more embodiments of the present application, the processing apparatus further includes a humidity adjustment module configured to compare an indoor humidity of the current use environment with a set humidity of the current use environment and calculate a humidity deviation, and to turn on or off an air conditioning device that can adjust the humidity of the current use environment based on the humidity deviation, and to correct the set temperature of the current use environment to a humidity correction set temperature corresponding to the current operation mode during the humidity adjustment.
In one or more embodiments of the present application, the humidity adjustment module corrects the set temperature of the current use environment to a heating humidity correction set temperature corresponding to a heating mode or corrects the set temperature of the current use environment to a cooling humidity correction set temperature corresponding to a cooling mode during humidity adjustment.
In one or more embodiments of the present application, the supply air speed of at least one of the air conditioning apparatuses is adjustable.
In one or more embodiments of the present application, the processing apparatus further includes a supply air speed adjustment module configured to compare an indoor temperature of a current use environment with a set temperature of the current use environment and calculate a temperature deviation, and adjust a supply air speed of at least one air conditioning device to a supply air speed corresponding to the temperature deviation based on the temperature deviation.
In one or more embodiments of the present application, a plurality of air conditioning apparatuses are connected to a server through a gateway.
Compared with the prior art, the method has the advantages that the processing device can comprehensively integrate the power, the use factor and the demand factor of all the air conditioning equipment through the fusion load calculation, so that the optimal set temperature of the current use environment is determined, and the set temperature of the current use environment is matched with the fusion load. Because the set temperature of the current use environment is dynamically adjusted according to the load condition of the whole air conditioning system, the cooperative work among the air conditioning devices is ensured, and different air conditioning devices keep the minimum energy consumption while optimizing the comfort level.
Other features and advantages of the present invention will become apparent upon review of the detailed description of the invention in conjunction with the drawings.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions of the prior art, the drawings that are needed in the embodiments or the description of the prior art will be briefly described below, it will be obvious that the drawings in the following description are some embodiments of the present invention, and that other drawings can be obtained according to these drawings without inventive effort to a person skilled in the art.
Fig. 1 is a schematic structural diagram of an air conditioning system according to some embodiments of the present invention;
fig. 2 is a schematic structural diagram of an air conditioning system according to some embodiments of the present invention;
FIG. 3 is a schematic block diagram of a processing device in an air conditioning system according to some embodiments of the present invention;
FIG. 4 is a schematic block diagram of a processing device in an air conditioning system according to some embodiments of the present invention;
FIG. 5 is a flow chart of a processing device in an air conditioning system according to some embodiments of the present invention;
FIG. 6 is a flow chart of a processing device in an air conditioning system according to some embodiments of the present invention;
FIG. 7 is a flow chart of a processing device in an air conditioning system according to some embodiments of the present invention;
FIG. 8 is a schematic block diagram of a processing device in an air conditioning system according to some embodiments of the present invention;
FIG. 9 is a schematic block diagram of a processing device in an air conditioning system according to some embodiments of the present invention;
FIG. 10 is a schematic block diagram of a processing device in an air conditioning system according to some embodiments of the present invention;
FIG. 11 is a schematic block diagram illustrating a processing apparatus in an air conditioning system according to some embodiments of the present invention;
in the figure:
1. An air conditioning system; 10, an air conditioner, 11, an air purifier, 12, a gateway, 13, a server, 20, a processing device, 201, a fusion load calculation module, 202, a set temperature correction module, 202-1, a setting part, 202-2, a dynamic adjustment part, 203, a start confirmation module, 204, a humidity adjustment module, 205, an air supply speed adjustment module, 30 and a sensor module.
Detailed Description
The following description of the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
In the description of the present application, it should be understood that the orientations or positional relationships indicated by the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationships shown in the drawings, merely to facilitate description of the present application and simplify description, and do not indicate or imply that the device or element in question must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be construed as limiting the present application.
The terms "first", "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying that the number of technical features indicated is indicated. Thus, a feature defining "first", "second" may include one or more of such features explicitly or implicitly. In the description of the present application, unless otherwise indicated, "a plurality of" means two or more.
In the description of the present application, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, integrally connected, mechanically connected, electrically connected, directly connected, indirectly connected through an intermediate medium, or in communication with each other between two elements. The specific meaning of the above terms in the present application will be understood in specific cases by those of ordinary skill in the art.
In the present invention, unless explicitly specified and limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features in direct contact, as well as the first and second features not in direct contact but in contact with another feature therebetween. Moreover, a first feature being "above", "above" and "upper" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "under" and "under" the second feature includes the first feature being directly under and obliquely under the second feature, or simply indicating that the first feature is less level than the second feature.
The following disclosure provides many different embodiments, or examples, for implementing different features of the invention. In order to simplify the present disclosure, components and arrangements of specific examples are described below. They are, of course, merely examples and are not intended to limit the invention. Furthermore, the present invention may repeat reference numerals and/or letters in the various examples, which are for the purpose of brevity and clarity, and which do not themselves indicate the relationship between the various embodiments and/or arrangements discussed. In addition, the present invention provides examples of various specific processes and materials, but one of ordinary skill in the art will recognize the application of other processes and/or the use of other materials.
Aiming at the problem that in the same environment, the air conditioning equipment which is operated in an energy-saving mode by adopting redundant air conditioning equipment is possibly adopted to maintain ideal indoor environment conditions, but the energy consumption is increased, and the real energy-saving effect cannot be achieved, an air conditioning system is designed and provided.
As shown in fig. 1, the air conditioning system 1 includes a plurality of air conditioning apparatuses connected in communication.
In one or more embodiments of the present application, at least one air conditioning device may adjust the indoor ambient temperature of the current use environment, and the air conditioning device may be the air conditioner 10 for adjusting the indoor ambient temperature of the current use environment.
The air conditioner 10 performs a refrigerating cycle of the air conditioner 10 by using a compressor, a condenser, a throttling element, and an evaporator. The refrigeration cycle includes a series of processes involving compression, condensation, expansion, and evaporation, and refrigerating or heating an indoor space.
The low-temperature low-pressure refrigerant enters the compressor, the compressor compresses the refrigerant gas into a high-temperature high-pressure state, and the compressed refrigerant gas is discharged. The discharged refrigerant gas flows into the condenser. The condenser condenses the compressed refrigerant into a liquid phase, and heat is released to the surrounding environment through the condensation process.
The throttling element (for example, an electronic expansion valve) expands the liquid-phase refrigerant in a high-temperature and high-pressure state formed by condensation in the condenser into a low-pressure liquid-phase refrigerant. The evaporator evaporates the refrigerant expanded in the electronic expansion valve and returns the refrigerant gas in a low-temperature and low-pressure state to the compressor. The evaporator may achieve a cooling effect by exchanging heat with a material to be cooled using latent heat of evaporation of a refrigerant. Throughout the cycle, the air conditioner 10 may adjust the temperature of the indoor space.
The outdoor unit of the air conditioner 10 refers to a portion of a refrigeration cycle including a compressor and an outdoor heat exchanger, the indoor unit of the air conditioner 10 includes an indoor heat exchanger, and an electronic expansion valve may be provided in the indoor unit or the outdoor unit.
The indoor heat exchanger and the outdoor heat exchanger function as a condenser or an evaporator. When the indoor heat exchanger is used as a condenser, the air conditioner 10 is used as a heater of a heating mode, and when the indoor heat exchanger is used as an evaporator, the air conditioner 10 is used as a cooler of a cooling mode.
In one or more embodiments of the application, the air conditioning device may be a fresh air device. The fresh air device comprises a filter and a fan, and is used for removing particulate matters and harmful gases in the air, and simultaneously introducing fresh air to keep indoor air fresh.
In one or more embodiments of the present application, the fresh air device may be a stand-alone device or may be integrated into the air conditioner 10 as a functional module of the air conditioner 10.
In one or more embodiments of the present application, the air conditioning apparatus may be an air cleaner 11.
The air cleaner 11 is a device for improving the quality of indoor air, and makes the air more fresh and healthier by removing particulate matter, gaseous pollutants and harmful substances in the air, and removing bad smell and killing bacteria, etc.
A filter system may be provided in the air cleaner 11 for removing particulate matter from the air. The filtration system may be HEPA (HIGH EFFICIENCY Particulate AIR FILTER, high-efficiency Particulate air filter), activated carbon filter, or the like.
An ultraviolet lamp may be provided in the air cleaner 11 for sterilizing bacteria, viruses and other microorganisms in the air.
An ionizer may also be provided in the air cleaner 11 to charge the particulate matter in the air for easy capture by the filter.
In one or more embodiments of the present application, the air conditioning apparatus may be a total heat exchanger.
The total heat exchanger can transfer heat between the air inlet and the air outlet, so that energy recovery is realized, the temperature of fresh air entering a building is regulated in advance, the energy required for heating or air conditioning is reduced, the energy consumption is reduced, and the energy expenditure is saved. The total heat exchanger can also be conditioned where appropriate to help maintain the comfort and quality of the indoor air.
In one or more embodiments of the present application, the air conditioning apparatus may be a dehumidifier.
In one or more embodiments of the present application, the air conditioning apparatus may be a humidifier.
In one or more embodiments of the present application, the air conditioning apparatus may be an air circulation fan.
The air circulation fan is used to promote air flow and to help evenly distribute contaminants and temperature in the air.
The air conditioning devices are connected into a network based on a wireless communication protocol or a wired communication protocol, so that data exchange and control are realized.
In one or more embodiments of the application, a plurality of air conditioning devices are connected to a router or gateway 12, the router or gateway 12 being connected to a server 13. The air conditioning equipment accesses the server 13 through the router or gateway 12 to realize data transmission and control.
The connection mode can be local area network, signal line (including Ethernet cable, coaxial cable, optical fiber, power line, serial port line), wireless signal, LTE, 5G, etc.
In the air conditioning system, a plurality of air conditioning devices can all operate independently, and the air conditioning devices can be controlled manually by a user as well as by a gateway transmitting a control command. In order to optimize the energy consumption, a power saving mode is integrated in at least part of the air conditioning apparatus. However, the comfort level of the indoor environment is comprehensively determined and dynamically changed by various factors, and the use habits and preferences of different users are different, so that the problem that part of air conditioning equipment is operated in an energy-saving mode easily occurs, but in order to compensate the energy-saving effect, other air conditioning equipment is operated in a redundant mode, so that the total energy consumption of the air conditioning system is higher. In particular, if the functions of some air conditioning apparatuses are overlapped, for example, the air cleaner and the fresh air system can improve the air quality, and if the global optimization algorithm is lack as one system, the situation of 'looking at each other' is easy to occur only according to the setting of one or more air conditioning apparatuses, for example, the air conditioner operates in an energy saving mode, and if the indoor environment temperature is slightly raised at this time or the user is in a sunlight irradiation position, the user feels uncomfortable. The user can easily use the air circulation fan for compensation, and at this time, the air circulation fan is easy to be excessively operated, resulting in increased energy consumption.
As shown in fig. 2, to optimize global policies, in one or more embodiments of the present application, a processing device 20 is provided.
From a hardware perspective, the processing device 20 includes components such as a processor, a volatile memory, a nonvolatile memory, a display device, an operating device, a communication interface, and a driving device, and is connected to each other via a bus. The processor may be a special purpose processor, a central processing unit (C PU), or the like. The processor may access the memory unit to execute instructions or applications stored in the memory unit to implement the relevant functions. The display device is a display device for displaying various information, the operation device is an operation device for receiving various operations, and the drive device is a hardware terminal that interacts with the storage medium. In one or more embodiments of the present application, the storage medium includes a medium such as a CD-ROM, a floppy disk, a magneto-optical disk, a ROM, a flash memory, etc. in which information is recorded optically, electrically, or magnetically.
In one or more embodiments of the application, the processing device 20 is a system-on-board based on an MCU.
In one or more embodiments of the application, the processing device 20 is a controller of the air conditioning apparatus itself.
In one or more embodiments of the present application, the processing device 20 is a host computer.
In one or more embodiments of the application, the processing device 20 is a cloud platform.
In one or more embodiments of the application, the processing device 20 is a smart mobile terminal, such as a mobile handset or the like.
As shown in fig. 3, in one or more embodiments of the present application, the processing device 20 includes a fusion load calculation module 201 and a set temperature correction module 202.
In one or more embodiments of the present application, the fusion load calculation module 201 is configured to calculate a fusion load of a current usage environment, the fusion load being calculated based on power, usage factors, and demand factors of a plurality of air conditioning devices.
The power of the air conditioning device is the rated power of the device.
In one or more embodiments of the present application, the usage factor is a ratio of a usage time of the air conditioning device in a set period to a set period duration.
In one or more embodiments of the application, the set period may be 24 hours. The usage factor is the proportion of the total time of the air conditioning equipment in the actual operation of the air conditioning equipment in one day. The usage factor reflects the frequency of use of the device. For example, if one air conditioning apparatus is operated for 12 hours in a lump in 24 hours, the usage factor is 0.5.
In one or more embodiments of the present application, the demand factor is a ratio of actual power consumption and rated power consumption of the air conditioning apparatus in a set period.
The demand factor represents a ratio between actual power consumption and rated power consumption of the air conditioning apparatus during use.
In one or more embodiments of the application, the set temperature correction module 202 is configured to dynamically adjust the set temperature of the current use environment according to the fusion load so that the set temperature of the current use environment matches the fusion load.
Through the fusion load calculation, the processing apparatus 20 may comprehensively integrate the power, the usage factor, and the demand factor of all the air conditioning devices, thereby determining the optimal set temperature of the current usage environment so as to match the set temperature of the current usage environment with the fusion load. Since the set temperature of the current use environment is dynamically adjusted according to the load condition of the whole air conditioning system 1, the cooperative work among the air conditioning devices is ensured, and different air conditioning devices keep the minimum energy consumption while optimizing the comfort level.
As shown in fig. 4, in one or more embodiments of the present application, the set temperature correction module 202 includes a setting portion 202-1 and a dynamic adjustment portion 202-2.
In one or more embodiments of the present application, the setting portion 202-1 is configured to set a boundary comfort temperature that can be maintained by the critical load as a setting temperature of the current use environment when the fusion load exceeds the critical load.
In one or more embodiments of the present application, the dynamic adjustment part 202-2 is configured to calculate a dynamic set temperature from the critical load and the fusion load according to the boundary comfort temperature that can be maintained by the critical load when the fusion load does not exceed the critical load, and take the dynamic set temperature as the set temperature of the current use environment.
In one or more embodiments of the application, the critical load is tested under experimental conditions. When the critical load is tested, a reference load condition can be selected, the load is gradually increased in a simulation mode until the air-conditioning equipment cannot keep the set temperature in the reference load condition, the load is gradually reduced until the air-conditioning equipment cannot keep the set temperature in the reference load condition, the corresponding load is recorded as the critical load, and the critical load is stored for calling at any time.
In one or more embodiments of the present application, the critical load may be continuously updated based on machine learning in an actual application scenario.
In one or more embodiments of the application, the boundary comfort temperature that the critical load can maintain is tested under experimental conditions. Under critical load (the critical load can be realized by simulating internal heat load under the set outdoor temperature), the set temperature of the air conditioning equipment is gradually increased or decreased until the air conditioning equipment cannot maintain, the corresponding set temperature is recorded as the boundary comfort temperature which can be maintained by the critical load, and the boundary comfort temperature which can be maintained by the critical load is stored for calling at any time.
In one or more embodiments of the present application, in an actual application scenario, the boundary comfort temperature that the critical load can maintain may be continuously updated based on machine learning.
In one or more embodiments of the present application, the setting is configured to perform the following steps when the fusion load exceeds the critical load, taking the boundary comfort temperature that the critical load can maintain as the set temperature of the current use environment.
And when the fusion load is lower than the lower limit threshold of the critical load, taking the upper limit boundary comfortable temperature which can be maintained by the critical load as the set temperature of the current use environment.
Illustratively, in the cooling mode, the steps shown in FIG. 5 are performed:
And step S101, judging whether the fusion load is lower than a critical load lower limit threshold value.
And step S102, if the fusion load is lower than the critical load lower limit threshold, taking the highest temperature which can be maintained by the critical load as the set temperature of the current use environment.
In the heating mode, if the fusion load is below the critical load lower threshold, the upper boundary comfort temperature that the critical load can maintain is the lowest temperature.
And when the fusion load is higher than the upper limit threshold of the critical load, taking the comfortable temperature of the lower limit boundary which can be maintained by the critical load as the set temperature of the current use environment.
Illustratively, in the cooling mode, the steps shown in FIG. 6 are performed:
And S201, judging whether the fusion load is higher than a critical load upper limit threshold value.
Step S202, if the fusion load is higher than the critical upper limit threshold, taking the lowest temperature which can be maintained by the critical load as the set temperature of the current use environment.
In the heating mode, if the fusion load is higher than the upper critical load threshold, the lower boundary comfort temperature that the critical load can maintain is the highest temperature.
When the fusion load is lower than the critical load lower limit threshold, the energy consumption of the air conditioning system 1 is reduced, and when the fusion load is higher than the critical load upper limit threshold, the cold (heat) load requirement is ensured to be met.
As shown in fig. 7, in one or more embodiments of the present application, the dynamic adjustment unit 202-2 is configured to perform the following steps when the fusion load does not exceed the critical load, calculate a dynamic set temperature according to the boundary comfort temperature, the critical load, and the fusion load that can be maintained by the critical load, and take the dynamic set temperature as the set temperature of the current use environment.
Step S301, calculating an estimated set temperature change rate caused by load change based on the difference between the upper limit boundary comfort temperature and the lower limit boundary comfort temperature which can be maintained by the critical load and the difference between the critical load upper limit threshold and the critical load lower limit threshold.
And S302, calculating the offset of the fusion load relative to the critical load upper limit threshold value based on the difference value of the fusion load and the critical load upper limit threshold value.
Step S303, calculating a dynamic set temperature based on the product of the set temperature change rate and the offset and the lower limit boundary comfort temperature which can be maintained under the current load condition.
By the method, in the dynamic load change process, the dynamic set temperature always provides enough refrigerating capacity when the load is high, the energy consumption is reduced in the low load process, meanwhile, the upper limit boundary comfortable temperature and the lower limit boundary comfortable temperature ensure that the dynamic set temperature change accords with expectations, the dynamic set temperature cannot be greatly fluctuated due to load fluctuation, the dynamic set temperature always and smoothly transits in different load regions, and the stability of an air conditioning system is improved.
In one or more embodiments of the application, the fused load is the sum of the products of the power, usage factor and demand factor of the plurality of air conditioning devices.
In one or more embodiments of the application:
The critical load upper threshold is denoted as Q max;
The critical load lower threshold is denoted as Q min;
the fusion load is denoted as Q f;
The upper boundary comfort temperature that the critical load can maintain is denoted as T ev,out,max;
The lower boundary comfort temperature that the critical load can maintain is denoted as T ev,out,min;
The set temperature of the current use environment is denoted as T ev,out.
Then there are:
Qf=∑(ω×ν×λ)
where ω is the power, v is the usage factor, and λ is the demand factor.
A temperature change rate is set for estimation caused by load change, and Q f-Qmax is the offset of the fusion load relative to the critical load upper limit threshold; The temperature is set dynamically.
In one or more embodiments of the present application, at least one air conditioning device may adjust the indoor air quality of the current use environment based on the air conditioner 10. The air conditioning device that can adjust the indoor air quality of the current use environment may be an air cleaner, an air conditioner having a fresh air module, a fresh air device, or the like.
In one or more embodiments of the application, the air conditioning device is communicatively coupled to the sensor module 30.
The sensor module 30 may detect contaminant concentrations, such as PM2.5, PM10, O 3、CO、SO2, and NO 2, in real time to calculate an Air Quality Index (AQI).
In one or more embodiments of the present application, the processing apparatus 20 further includes a start-up confirmation module 203, where the start-up confirmation module 203 is configured to determine start-up and shut-down of the plurality of air conditioning devices using an optimization algorithm with the objective of making the total energy consumption of the air conditioning system 1 meet a preset energy consumption condition and the air quality index meet a preset air quality condition.
In one or more embodiments of the present application, the start-up confirmation module 203 is configured with an optimization algorithm, where x i represents the start-stop state of each air-conditioning device, and illustratively, when x i =1, represents that the ith air-conditioning device is in an operating state, and when x i =0, represents that the air-conditioning device is in an off state.
With energy consumption minimization as the objective function of the optimization algorithm, the objective function can be expressed as:
Where P i denotes the power consumption of the i-th air conditioning apparatus.
Constraints of the objective function include one or more of the following:
1. air Quality Index (AQI) conditions:
the air quality index meets the preset air quality condition, namely
AQIcurrent≤AQItarget
The AQI current is a real-time air quality index, the AQI target is a target air quality index, and the calculation of the air quality index can adopt an algorithm disclosed in the prior art.
2. Contaminant concentration conditions:
if the concentration of any one pollutant exceeds the set concentration, at least one air conditioning device capable of adjusting the indoor air quality of the current use environment is in an operation state, namely:
Wherein C j is the concentration of the jth contaminant detected by the sensor module 30, C j,target is the set concentration of the jth contaminant;
if the concentration of all the pollutants does not exceed the set concentration, the air conditioning device which can adjust the indoor air quality of the current use environment can be completely turned off, i.e
3. Presetting schedule conditions:
if the current time is within the preset schedule, the air conditioning equipment capable of adjusting the indoor air quality of the current use environment can be completely turned off, namely
4. Switching the master-slave relation:
when the air conditioning equipment with the indoor air quality capable of adjusting the current use environment is provided with a plurality of pieces of air conditioning equipment with the indoor air quality capable of adjusting the current use environment, a master-slave relationship can be arranged in the plurality of pieces of air conditioning equipment with the indoor air quality capable of adjusting the current use environment, and if a host fails, the slave becomes the host so as to maintain the continuous normal operation of the air conditioning system 1.
And solving the optimal solution of the objective function under the constraint condition by using a linear programming algorithm to obtain the optimal state distribution with the minimum air conditioning energy consumption, and realizing the efficient operation of the air conditioning system 1 by precisely controlling a plurality of air conditioning devices capable of adjusting the indoor air quality of the current use environment.
By starting the confirmation module 203, which devices are started according to the air quality decision and the energy consumption decision can be avoided, and the simultaneous operation of a plurality of devices with similar functions (such as an air purifier and a fresh air system) is avoided, so that the redundant operation problem caused by the overlapping of the functions of the devices is reduced. Meanwhile, the energy efficiency and the comfort requirements of a plurality of air conditioning devices can be balanced in real time in response to the change of indoor and outdoor air quality, so that the problem of 'bringing about the same' is reduced.
In one or more embodiments of the application, the processing device 20 further includes a humidity conditioning module 204.
The humidity adjustment module 204 is configured to compare the indoor humidity of the current use environment with the set humidity of the current use environment and calculate a humidity deviation, and to turn on or off an air conditioning device that can adjust the humidity of the current use environment based on the humidity deviation. The air conditioning device that can adjust the humidity of the current use environment may be an air conditioner, a humidifier, a dehumidifier, or the like.
The indoor humidity of the current use environment is denoted as H i, the target humidity is denoted as H s, and the humidity deviation is denoted as Δh, then there are:
ΔH=Hs-Hi
in one or more embodiments of the present application, when ΔH > ΔH set1, an air conditioning device that can adjust the humidity of the current use environment is activated, and when ΔH < ΔH set2, an air conditioning device that can adjust the humidity of the current use environment is turned off.
In one or more embodiments of the present application, the humidity adjustment module 204 is further configured to modify the set temperature of the current use environment to a humidity modification set temperature corresponding to the current operation mode during adjustment of humidity.
In one or more embodiments of the present application, the humidity adjustment module 204 is further configured to correct the set temperature of the current usage environment to a heating humidity correction set temperature corresponding to the heating mode during adjustment of humidity.
In one or more embodiments of the present application, the heating humidity correction set temperature corresponding to the heating mode is 30 ℃.
In one or more embodiments of the present application, the humidity adjustment module 204 is further configured to correct the set temperature of the current use environment to a cooling humidity correction set temperature corresponding to the cooling mode during adjustment of humidity.
In one or more embodiments of the present application, the cooling humidity correction set temperature corresponding to the cooling mode is 26 ℃.
In one or more embodiments of the application, the processing module further includes a supply air speed adjustment module 205. The air-sending wind speed adjusting module 205 is configured to compare the indoor temperature of the current use environment with the set temperature of the current use environment and calculate a temperature deviation, and adjust the air-sending wind speed of at least one air-conditioning apparatus to the air-sending wind speed corresponding to the temperature deviation based on the temperature deviation.
In one or more embodiments of the present application, when the calculated temperature deviation is higher than the first temperature difference threshold value, a high wind mode of the air flow is set, and the calculated temperature deviation corresponds to the high gear wind speed.
In one or more embodiments of the application, when the calculated temperature deviation is above the second temperature difference threshold but below the first temperature difference threshold, a stroke mode of air flow is set, and the calculated temperature deviation corresponds to a mid-gear wind speed.
In one or more embodiments of the present application, when the calculated temperature deviation is higher than the third temperature difference threshold value but lower than the second temperature difference threshold value, a low wind mode of the air flow is set, and the calculated temperature deviation corresponds to a low gear wind speed.
In one or more embodiments of the present application, a re-evaluation cycle is started after a high wind mode set to an air flow rate, and at the end of the re-evaluation cycle, a temperature deviation is calculated and a wind speed of the supplied air corresponding to the temperature deviation is confirmed.
In one or more embodiments of the present application, the fusion load calculation module 201, the set temperature correction module 202, the start confirmation module 203, the humidity adjustment module 204, and the supply air speed adjustment module 205 may start one or more of them under preset conditions.
In the description of the above embodiments, particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or examples.
The foregoing is merely illustrative of the present invention, and the present invention is not limited thereto, and any changes or substitutions easily contemplated by those skilled in the art within the scope of the present invention should be included in the scope of the present invention. Therefore, the protection scope of the invention is subject to the protection scope of the claims.
Claims (10)
1. An air conditioning system comprising:
A plurality of air conditioning devices in communication connection, wherein at least one of the air conditioning devices is capable of adjusting an indoor ambient temperature of a current use environment;
Characterized by further comprising:
A processing apparatus, comprising:
A fused load calculation module configured to calculate a fused load of a current use environment, the fused load being calculated based on power, a usage factor and a demand factor of a plurality of air conditioning apparatuses, wherein the usage factor is a ratio of a usage time of the air conditioning apparatus in a set period to a set period duration, the demand factor is a ratio of actual power consumption and rated power consumption of the air conditioning apparatus in the set period, and
And the set temperature correction module is configured to dynamically adjust the set temperature of the current use environment according to the fusion load so as to enable the set temperature of the current use environment to be matched with the fusion load.
2. An air conditioning system according to claim 1, wherein:
the set temperature correction module includes:
A setting part configured to set a boundary comfort temperature which can be maintained by the critical load as a setting temperature of a current use environment when the fusion load exceeds the critical load, and
And a dynamic adjustment unit configured to calculate a dynamic setting temperature from the critical load and the fusion load, and to use the dynamic setting temperature as a setting temperature of a current use environment, when the fusion load does not exceed the critical load.
3. An air conditioning system according to claim 2, wherein:
The setting part is configured to execute the following steps when the fusion load exceeds a critical load, wherein the boundary comfort temperature which can be maintained by the critical load is taken as the setting temperature of the current use environment:
when the fusion load is lower than the lower limit threshold value of the critical load, the upper limit boundary comfortable temperature which can be maintained by the critical load is taken as the set temperature of the current use environment, and
And when the fusion load is higher than the upper limit threshold of the critical load, taking the lower limit boundary comfortable temperature which can be maintained by the critical load as the set temperature of the current use environment.
4. An air conditioning system according to claim 3, characterized in that:
The dynamic adjustment part is configured to execute the following steps when the fusion load does not exceed the critical load, calculate a dynamic set temperature according to the boundary comfort temperature which can be maintained by the critical load, the critical load and the fusion load, and take the dynamic set temperature as the set temperature of the current use environment:
calculating an estimated set temperature change rate due to load change based on a difference between an upper boundary comfort temperature and a lower boundary comfort temperature that can be maintained by the critical load and a difference between an upper critical load threshold and a lower critical load threshold;
Calculating the offset of the fusion load relative to the critical load upper limit threshold value based on the difference value between the fusion load and the critical load upper limit threshold value;
the dynamic set temperature is calculated based on the product of the set temperature change rate and the offset, and the lower boundary comfort temperature that can be maintained under the current load condition.
5. An air conditioning system according to any of claims 1 to 4, characterized in that:
the fusion load is the sum of products of power, usage factors and demand factors of a plurality of air conditioning equipment.
6. An air conditioning system according to any of claims 1 to 4, characterized in that:
wherein at least one air conditioning device is capable of adjusting the indoor air quality of the current use environment;
The processing device further includes:
And the starting confirmation module is configured to determine the starting and stopping of the plurality of air conditioning devices by adopting an optimization algorithm with the aim of enabling the total energy consumption of the air conditioning system to meet the preset energy consumption condition and the air quality index to meet the preset air quality condition.
7. An air conditioning system according to any of claims 1 to 4, characterized in that:
wherein at least one air conditioning device is capable of adjusting the humidity of the current use environment;
The processing device further includes:
And a humidity adjustment module configured to compare the indoor humidity of the current use environment with the set humidity of the current use environment and calculate a humidity deviation, and to start or shut off an air conditioning device that can adjust the humidity of the current use environment based on the humidity deviation, and to correct the set temperature of the current use environment to a humidity correction set temperature corresponding to the current operation mode during the humidity adjustment.
8. An air conditioning system according to claim 7, wherein:
In the process of humidity adjustment, the humidity adjustment module corrects the set temperature of the current use environment to be the heating humidity correction set temperature corresponding to the heating mode, or corrects the set temperature of the current use environment to be the refrigerating humidity correction set temperature corresponding to the refrigerating mode.
9. An air conditioning system according to any of claims 1 to 4, characterized in that:
wherein the air supply speed of at least one air conditioning device is adjustable;
The processing device further includes:
and an air supply air speed adjusting module configured to compare an indoor temperature of a current use environment with a set temperature of the current use environment and calculate a temperature deviation, and adjust an air supply air speed of at least one air conditioning device to an air supply air speed corresponding to the temperature deviation based on the temperature deviation.
10. An air conditioning system according to any of claims 1 to 4, characterized in that:
the plurality of air conditioning devices are connected with the server through the gateway.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104126098A (en) * | 2012-03-30 | 2014-10-29 | 三菱重工业株式会社 | Heat source system, device for controlling same, and method for controlling same |
| CN109842117A (en) * | 2019-02-25 | 2019-06-04 | 国网江苏省电力有限公司无锡供电分公司 | Air conditioner load cutting method based on temperature regulating measure and state-of-charge parameter model |
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| JP5473619B2 (en) * | 2010-01-12 | 2014-04-16 | 三菱電機株式会社 | Air conditioner control device |
| CN113623821B (en) * | 2020-05-09 | 2022-12-06 | 上海华为技术有限公司 | Method for adjusting temperature of air conditioner and temperature adjusting device |
| CN113240550B (en) * | 2021-04-26 | 2024-03-29 | 广东美的暖通设备有限公司 | Space recommending method, device and system based on air conditioning system and storage medium |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104126098A (en) * | 2012-03-30 | 2014-10-29 | 三菱重工业株式会社 | Heat source system, device for controlling same, and method for controlling same |
| CN109842117A (en) * | 2019-02-25 | 2019-06-04 | 国网江苏省电力有限公司无锡供电分公司 | Air conditioner load cutting method based on temperature regulating measure and state-of-charge parameter model |
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