WO2022077915A1 - 多联机及其控制方法、计算机存储介质 - Google Patents

多联机及其控制方法、计算机存储介质 Download PDF

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Publication number
WO2022077915A1
WO2022077915A1 PCT/CN2021/096571 CN2021096571W WO2022077915A1 WO 2022077915 A1 WO2022077915 A1 WO 2022077915A1 CN 2021096571 W CN2021096571 W CN 2021096571W WO 2022077915 A1 WO2022077915 A1 WO 2022077915A1
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Prior art keywords
humidity
temperature
indoor unit
indoor
demand
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PCT/CN2021/096571
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English (en)
French (fr)
Inventor
陶骙
黎顺全
Original Assignee
美的集团武汉制冷设备有限公司
广东美的制冷设备有限公司
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Application filed by 美的集团武汉制冷设备有限公司, 广东美的制冷设备有限公司 filed Critical 美的集团武汉制冷设备有限公司
Priority to EP21878969.1A priority Critical patent/EP4220028A4/en
Publication of WO2022077915A1 publication Critical patent/WO2022077915A1/zh
Priority to US18/132,670 priority patent/US20230250991A1/en

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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
    • F24F11/83—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers
    • F24F11/84—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers using valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B49/00—Arrangement or mounting of control or safety devices
    • F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
    • 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
    • F24F11/65—Electronic processing for selecting an operating mode
    • 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
    • F24F11/86—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling compressors within refrigeration or heat pump circuits
    • 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
    • F24F11/87—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling absorption or discharge of heat in outdoor units
    • F24F11/871—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling absorption or discharge of heat in outdoor units by controlling outdoor fans
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
    • F24F3/06—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the arrangements for the supply of heat-exchange fluid for the subsequent treatment of primary air in the room units
    • F24F3/065—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the arrangements for the supply of heat-exchange fluid for the subsequent treatment of primary air in the room units with a plurality of evaporators or condensers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B13/00—Compression machines, plants or systems, with reversible cycle
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B41/00—Fluid-circulation arrangements
    • F25B41/20—Disposition of valves, e.g. of on-off valves or flow control valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B41/00—Fluid-circulation arrangements
    • F25B41/40—Fluid line arrangements
    • F25B41/42—Arrangements for diverging or converging flows, e.g. branch lines or junctions
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2110/00—Control inputs relating to air properties
    • F24F2110/10—Temperature
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2110/00—Control inputs relating to air properties
    • F24F2110/10—Temperature
    • F24F2110/12—Temperature of the outside air
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2110/00—Control inputs relating to air properties
    • F24F2110/20—Humidity
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2313/00—Compression machines, plants or systems with reversible cycle not otherwise provided for
    • F25B2313/023—Compression machines, plants or systems with reversible cycle not otherwise provided for using multiple indoor units
    • F25B2313/0231—Compression machines, plants or systems with reversible cycle not otherwise provided for using multiple indoor units with simultaneous cooling and heating
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2313/00—Compression machines, plants or systems with reversible cycle not otherwise provided for
    • F25B2313/029—Control issues
    • F25B2313/0294—Control issues related to the outdoor fan, e.g. controlling speed
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2500/00—Problems to be solved
    • F25B2500/19—Calculation of parameters
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2600/00—Control issues
    • F25B2600/02—Compressor control
    • F25B2600/025—Compressor control by controlling speed
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2600/00—Control issues
    • F25B2600/11—Fan speed control
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2600/00—Control issues
    • F25B2600/25—Control of valves
    • F25B2600/2513—Expansion valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2700/00—Sensing or detecting of parameters; Sensors therefor
    • F25B2700/02—Humidity
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating

Definitions

  • the present application relates to the technical field of air conditioners, and in particular, to a multi-connector, a control method thereof, and a computer storage medium.
  • the outdoor units are usually regulated according to the total cooling demand of each indoor unit.
  • the cooling demand of a single indoor unit is too high, the total cooling demand will also be too high, and the compressor frequency will increase, so that the evaporating temperature of each indoor unit is lower, the dehumidification effect is enhanced, and the room where each indoor unit is located has a larger dehumidification capacity. Unable to meet the humidity needs of users in most rooms.
  • the main purpose of the present application is to provide a multi-connector, a control method thereof, and a computer storage medium, which aim to determine the humidity requirements of each indoor unit, and adjust the outdoor units according to the humidity requirements to meet the humidity requirements of most indoor rooms.
  • the multi-connection control method includes the following steps:
  • the proportion of humidity demand is determined according to the output nominal value of each indoor unit in the running state, and the humidity demand proportion includes the total output nominal value of the indoor unit with humidity demand and the total output nominal value of the indoor unit without humidity demand
  • the rotational speed of the outdoor fan is adjusted according to the outdoor ambient temperature and/or the compressor frequency is adjusted according to the set humidity corresponding to the indoor unit in the running state.
  • the step of obtaining the indoor units with humidity demand and the indoor units without humidity demand in the indoor unit in the running state includes:
  • the step of adjusting the frequency of the compressor according to the set humidity corresponding to the indoor unit in the running state includes:
  • the frequency of the compressor is adjusted according to the set temperature and set humidity of the indoor unit corresponding to the minimum temperature difference.
  • the step of adjusting the frequency of the compressor according to the set temperature corresponding to the indoor unit with the smallest temperature difference and the corresponding set humidity includes:
  • the compressor frequency is adjusted according to the actual suction saturation temperature of the compressor and the target suction saturation temperature.
  • the multi-connection control method further includes:
  • the opening degree of the electronic expansion valve of each indoor unit in the running state is adjusted according to the exhaust gas temperature of the compressor.
  • the step of adjusting the opening degree of the electronic expansion valve of each indoor unit in the running state according to the exhaust gas temperature of the compressor includes:
  • the opening degree of the electronic expansion valve of each indoor unit in the operating state is adjusted according to the degree of superheat of the exhaust gas.
  • the step of adjusting the rotational speed of the outdoor fan according to the outdoor ambient temperature includes:
  • the rotational speed of the outdoor fan is adjusted according to the target heat exchange temperature.
  • the step of adjusting the rotational speed of the outdoor fan according to the target heat exchange temperature includes:
  • the exhaust gas saturation temperature is the saturation temperature corresponding to the exhaust gas pressure of the compressor
  • the multi-connection control method further includes:
  • the opening degree of the electronic expansion valve of the indoor unit is adjusted according to the outlet temperature of the indoor heat exchanger of each indoor unit in the running state.
  • the multi-connection control method further includes:
  • the humidification device When the humidification device is running, if it is detected that the current indoor humidity corresponding to the indoor unit with humidity demand is greater than a second humidity, the humidification device is controlled to stop running, wherein the second humidity is greater than the first humidity.
  • the present application also provides a multi-connection
  • the multi-connection includes: a memory, a processor, and a multi-connection control program stored in the memory and running on the processor, so When the multi-connection control program is executed by the processor, the steps of the multi-connection control method described in any one of the above are realized.
  • the present application also provides a computer storage medium, the computer storage medium stores a multi-line control program, and when the multi-line control program is executed by a processor, any one of the above-mentioned control programs is realized.
  • the steps of the multi-connection control method described in the item are described in the item.
  • the indoor unit in the running state is obtained, and the indoor unit in the running state is obtained in the indoor unit with humidity demand and
  • determine the proportion of humidity demand according to the output nominal value of each indoor unit in the running state determines the proportion of humidity demand according to the output nominal value of each indoor unit in the running state, and the humidity demand proportion includes the total output nominal value of the indoor units with humidity demand and the humidity demand.
  • the ratio of the total output nominal value of the indoor unit and the indoor unit without humidity demand, or the ratio of the total output nominal value of the indoor unit with humidity demand to the total output nominal value of the indoor unit in the running state when the ratio is greater than the preset ratio, adjust the rotation speed of the outdoor fan according to the outdoor ambient temperature and/or adjust the compressor frequency according to the set humidity corresponding to the indoor unit in the running state.
  • the present application determines the humidity demand of each indoor unit in the running state, and adjusts the outdoor fan and compressor according to the size of the humidity demand, so as to adjust the dehumidification capability of each indoor unit, so that the indoor humidity can meet the humidity demand of most indoor rooms.
  • FIG. 1 is a schematic diagram of a terminal structure of a hardware operating environment involved in a solution according to an embodiment of the present application
  • FIG. 2 is a schematic flowchart of an embodiment of a multi-connection control method of the present application
  • FIG. 3 is a schematic flowchart of another embodiment of the multi-connection control method of the present application.
  • FIG. 4 is a schematic flowchart of still another embodiment of the multi-connection control method of the present application.
  • FIG. 5 is a schematic flowchart of another embodiment of the multi-connection control method of the present application.
  • FIG. 6 is a schematic diagram of the overall connection relationship of the multi-connection of the application.
  • Fig. 9 is the control logic schematic diagram of the outdoor fan of the application.
  • FIG. 10 is a schematic diagram of the control logic of the electronic expansion valve of the present application.
  • FIG. 11 is another schematic diagram of the overall control logic of the application.
  • the embodiment of the present application provides a solution.
  • the outdoor fan and the compressor are adjusted according to the size of the humidity requirement, so as to adjust the dehumidification capability of each indoor unit, so that the indoor humidity can meet the indoor humidity requirements. Humidity requirements for most rooms.
  • FIG. 1 is a schematic structural diagram of a terminal of a hardware operating environment involved in the solution of the embodiment of the present application.
  • the terminal in the embodiment of the present application is a multi-line air conditioner.
  • the terminal may include: a processor 1001 , such as a CPU, a communication bus 1002 , a user interface 1003 , and a memory 1004 .
  • the communication bus 1002 is used to realize the connection and communication between these components.
  • the user interface 1003 may include a display screen (Display), an input unit such as a keyboard (Keyboard), and the optional user interface 1003 may also include a standard wired interface and a wireless interface.
  • the memory 1004 may be high-speed RAM memory, or may be non-volatile memory, such as disk memory.
  • the memory 1004 may also be a storage device independent of the aforementioned processor 1001 .
  • terminal structure shown in FIG. 1 does not constitute a limitation on the terminal, and may include more or less components than the one shown, or combine some components, or arrange different components.
  • the memory 1004 as a computer storage medium may include a user interface module and a multi-connected control program.
  • the user interface 1003 is mainly used to connect to the client (client) and perform data communication with the client; and the processor 1001 can be used to call the multi-connection control program stored in the memory 1004, and Do the following:
  • the proportion of humidity demand is determined according to the output nominal value of each indoor unit in the running state, and the humidity demand proportion includes the total output nominal value of the indoor unit with humidity demand and the total output nominal value of the indoor unit without humidity demand
  • the rotational speed of the outdoor fan is adjusted according to the outdoor ambient temperature and/or the compressor frequency is adjusted according to the set humidity corresponding to the indoor unit in the running state.
  • processor 1001 can call the multi-connection control program stored in the memory 1004, and also perform the following operations:
  • processor 1001 can call the multi-connection control program stored in the memory 1004, and also perform the following operations:
  • the frequency of the compressor is adjusted according to the set temperature and set humidity of the indoor unit corresponding to the minimum temperature difference.
  • processor 1001 can call the multi-connection control program stored in the memory 1004, and also perform the following operations:
  • the compressor frequency is adjusted according to the actual suction saturation temperature of the compressor and the target suction saturation temperature.
  • processor 1001 can call the multi-connection control program stored in the memory 1004, and also perform the following operations:
  • the opening degree of the electronic expansion valve of each indoor unit in the running state is adjusted according to the exhaust gas temperature of the compressor.
  • processor 1001 can call the multi-connection control program stored in the memory 1004, and also perform the following operations:
  • the opening degree of the electronic expansion valve of each indoor unit in the operating state is adjusted according to the degree of superheat of the exhaust gas.
  • processor 1001 can call the multi-connection control program stored in the memory 1004, and also perform the following operations:
  • the rotational speed of the outdoor fan is adjusted according to the target heat exchange temperature.
  • processor 1001 can call the multi-connection control program stored in the memory 1004, and also perform the following operations:
  • the exhaust gas saturation temperature is the saturation temperature corresponding to the exhaust gas pressure of the compressor
  • processor 1001 can call the multi-connection control program stored in the memory 1004, and also perform the following operations:
  • the opening degree of the electronic expansion valve of the indoor unit is adjusted according to the outlet temperature of the indoor heat exchanger of each indoor unit in the running state.
  • processor 1001 can call the multi-connection control program stored in the memory 1004, and also perform the following operations:
  • the humidification device When the humidification device is running, if it is detected that the current indoor humidity corresponding to the indoor unit with humidity demand is greater than a second humidity, the humidification device is controlled to stop running, wherein the second humidity is greater than the first humidity.
  • the multi-connection control method includes the following steps:
  • Step S10 acquiring the indoor unit in the running state during the multi-line cooling
  • Step S20 from the indoor units in the running state, obtain the indoor units with humidity requirements and the indoor units without humidity requirements;
  • the embodiment terminal is a multi-line air conditioner as shown in FIG. 6 .
  • different indoor units have different function spaces.
  • the corresponding indoor unit starts and cools in the function space.
  • the multi-connected mechanism is cooling, regularly obtain the indoor units in the running state, and regularly detect whether each indoor unit in the running state has humidity requirements, so as to determine the indoor units that have humidity requirements and the indoor units that do not have humidity requirements.
  • the indoor unit in the running state meets the preset humidity demand condition, if the humidity demand condition is met, it is judged that the indoor unit has humidity demand, and if the humidity demand condition is not met, it is judged that the indoor unit does not There is a humidity requirement.
  • the humidity demand condition may include that the indoor unit receives a user-triggered humidity demand instruction, the current indoor humidity of the indoor unit is lower than the humidity threshold, and the difference between the current indoor temperature of the indoor unit and the set temperature is less than
  • the preset difference value and the cooling duration required for the current indoor temperature of the indoor unit to reach the set temperature are less than at least one of the preset durations, where the preset duration is the cooling duration acceptable to the user, that is, the user wishes to have the best cooling time.
  • the current indoor ambient temperature will reach the set temperature within a long time.
  • the indoor environment is comfortable relative to the user, the adjustment of indoor environment parameters without the user cannot play a role. Therefore, as shown in FIG. 11, in the indoor unit in the running state, When obtaining indoor units with humidity demand and indoor units without humidity demand, you can also first detect the status of the action space corresponding to each indoor unit in the running state. If the indoor unit is in the running state and the status of the corresponding action space is occupied If the indoor unit is in the running state, but the state of the corresponding action space is unmanned, it is not necessary to consider the humidity demand of the indoor unit.
  • the indoor units whose space status is occupied obtain the indoor units with humidity demand and the indoor units without humidity demand, and determine the humidity according to the output nominal value of each indoor unit in the running state and the working space status is occupied.
  • the humidity demand is ignored. It should be noted that comfort is subjective, and it is more realistic to judge the humidity demand only for the indoor unit of the person.
  • the cooling of the indoor unit of the unmanned person has no requirement on the cooling time, and the temperature and humidity control can be finally realized. Then this type of indoor unit is a vassal, and can be adjusted according to the control logic of the indoor unit.
  • Step S30 Determine the proportion of humidity demand according to the output nominal value of each indoor unit in the running state, where the humidity demand proportion includes the total output nominal value of the indoor units with humidity demand and the total output of the indoor units without humidity demand.
  • the ratio of the output nominal value or, the ratio of the total output nominal value of the indoor unit with humidity demand to the total output nominal value of the indoor unit with humidity demand and the indoor unit without humidity demand;
  • the output nominal value of each indoor unit in the running state can be obtained to determine the total output nominal value of the indoor units with humidity demand, Determine the proportion of humidity demand according to the total output nominal value of indoor units with humidity demand.
  • the ratio of humidity demand may include the ratio of the total output nominal value of the indoor units with humidity demand to the total output nominal value of the indoor units without humidity demand, or calculate the indoor unit with humidity demand. and the total output nominal value of indoor units without humidity demand, the proportion of humidity demand includes the total output nominal value of indoor units with humidity demand and the total output of indoor units with humidity demand and indoor units without humidity demand Ratio of nominal values.
  • the ratio of humidity demand is used to characterize the degree of humidity demand of all indoor users.
  • Step S40 when the ratio is greater than a preset ratio, adjust the rotational speed of the outdoor fan according to the outdoor ambient temperature and/or adjust the compressor frequency according to the set humidity corresponding to the indoor unit in the running state.
  • the outdoor unit when the proportion of humidity demand is greater than the preset proportion, it indicates that all indoor users have a greater demand for humidity. Therefore, the outdoor unit can be controlled to perform comfortable cooling, and the adjustment according to the outdoor ambient temperature can be performed. The speed of the outdoor fan and/or the frequency of the compressor is adjusted according to the set humidity corresponding to the indoor unit in the running state, reducing dehumidification while cooling, and trying to meet the indoor user's demand for humidity. When the ratio of humidity demand is less than or equal to the preset ratio, it indicates that all indoor users have little demand for humidity. Therefore, the outdoor unit can be controlled to perform conventional cooling, and the outdoor fan and/or compressor frequency can be controlled according to the conventional cooling control logic.
  • the preset ratio can be 50%.
  • the outdoor fans, compressors, electronic expansion valves and various indoor units in the running state are controlled to enter or maintain comfortable cooling.
  • the ratio is less than or equal to 50%, control the multi-connected outdoor fans, compressors, electronic expansion valves and various indoor units in operation to enter or maintain conventional refrigeration.
  • the heat dissipation efficiency of the outdoor heat exchanger is adjusted by adjusting the rotational speed of the outdoor fan, so that the temperature reached by the refrigerant after condensing in the outdoor heat exchanger is higher than that of the outdoor heat exchanger.
  • the outdoor ambient temperature that is, the outlet refrigerant temperature of the outdoor heat exchanger is higher than the outdoor ambient temperature. In this way, the indoor coil temperature will also increase accordingly, reducing the dehumidification capacity of each indoor unit to meet the humidity requirements of indoor users.
  • the indoor relative humidity can basically reach the indoor set humidity, so as to satisfy the indoor humidity requirements.
  • the user's humidity needs.
  • the multi-connection further includes a humidification module, which is used to provide humidification capability to each indoor unit respectively.
  • a humidification module which is used to provide humidification capability to each indoor unit respectively.
  • the ratio of humidity demand is greater than the preset ratio, it can also control each indoor unit to Humidify.
  • the ratio of humidity demand is greater than the preset ratio, the current indoor temperature of each indoor unit can also be detected, and if the difference between the current indoor temperature and the set temperature is less than the preset value, the indoor unit is controlled to humidify. For example, when the difference between the current indoor temperature and the set temperature is less than 2, and the current indoor humidity is less than 50%, the indoor unit is controlled to humidify, and when the current indoor humidity is detected to be greater than 65%, the indoor unit is controlled to stop humidifying.
  • the humidification module when the air conditioner is normally refrigerated and the cooling capacity is relatively strong, the humidification module does not operate, so as to prevent the water vapor generated by the humidification module from rapidly condensing into water droplets, resulting in a humid indoor environment.
  • the ratio when the ratio is less than the preset ratio, it indicates that all indoor users have a greater demand for humidity. Since the outdoor units are controlled according to conventional cooling logic at this time, even the indoor units that have humidity requirements, It needs to be controlled according to the conventional cooling logic, so as to avoid that the electronic expansion valve of the indoor unit with humidity demand is too small and the flow rate is too small, resulting in a high exhaust temperature of the outdoor unit, which affects the effect of cooling the room, that is, all indoor units in the running state. All units must be controlled according to the conventional refrigeration logic, and the opening degree of the corresponding electronic expansion valve of the indoor unit is adjusted according to the outlet temperature of the indoor heat exchanger of the indoor unit.
  • the humidity demand of the indoor unit with humidity demand may not be satisfied.
  • the current indoor humidity corresponding to the indoor unit with humidity demand can be obtained, If the current indoor humidity corresponding to the indoor unit with humidity demand is lower than the first humidity, it indicates that the humidity demand of the indoor unit cannot be satisfied, so the operation of the humidification device corresponding to the indoor unit with humidity demand can be controlled.
  • the humidification device is running, if it is detected that the current indoor humidity corresponding to the indoor unit with humidity demand is greater than the second humidity, it indicates that the humidity demand of the indoor unit is satisfied, so it can be detected that the humidification device stops humidification, wherein the second humidity is greater than the second humidity.
  • a humidity for example, the first humidity may be 50% and the second humidity may be 65%.
  • the difference between the current indoor temperature corresponding to the indoor unit with humidity demand and the corresponding set temperature may be further detected.
  • the step of controlling the operation of the humidification device corresponding to the indoor unit with humidity demand is performed.
  • the outdoor fan and the compressor are adjusted according to the size of the humidity demand, so as to adjust the dehumidification capability of each indoor unit, so that the indoor humidity can meet the indoor humidity requirements. Humidity requirements for most rooms.
  • the step of adjusting the frequency of the compressor according to the set humidity corresponding to the indoor unit in the running state includes:
  • Step S41 obtaining the temperature difference between the current indoor temperature corresponding to each indoor unit in the running state and the corresponding set temperature
  • the compressor when the compressor is controlled to perform comfort cooling, the current indoor temperature in the action space corresponding to each indoor unit in the running state and the set temperature of each indoor unit in the running state are acquired , the set temperature can be set by the user according to the cooling demand. For each indoor unit, the temperature difference between the corresponding current indoor temperature and the corresponding set temperature is calculated, and the temperature difference is used to represent the cooling demand of the indoor user corresponding to the indoor unit.
  • Step S42 adjust the frequency of the compressor according to the set temperature and set humidity of the indoor unit corresponding to the minimum temperature difference.
  • the indoor unit with the smallest temperature difference is determined, and the compressor frequency is adjusted according to the set temperature and set humidity corresponding to the indoor unit corresponding to the minimum temperature difference , that is, the frequency of the compressor is adjusted according to the indoor environment parameter with the minimum cooling demand, so that the compressor can provide the minimum cooling capacity, and avoid the initial quantity of each indoor unit being larger when the cooling capacity is higher.
  • the target dew point temperature is obtained according to the set temperature and set humidity of the air conditioner, and then the target dew point temperature is obtained according to the set temperature and set humidity of the air conditioner.
  • the target suction saturation temperature is the refrigerant saturation temperature that the suction port of the compressor needs to reach
  • the actual saturation temperature of the compressor suction port is the value corresponding to the suction pressure of the suction port.
  • the actual saturation temperature, while the set temperature and set humidity are the target values preset in the indoor unit, which can be set and adjusted by the user.
  • the target dew point temperature when the target dew point temperature is obtained according to the set temperature and the set humidity, it can be determined according to the calculation formula corresponding to the dew point temperature.
  • the calculation formula of the dew point formula is as follows:
  • Td is the dew point temperature
  • T is the temperature
  • H1 is the humidity.
  • Td is the dew point temperature
  • T is the temperature
  • H1 is the humidity.
  • Td is the target dew point temperature
  • H1 relative humidity
  • the value range is [20%, 90%]
  • T T1+273.15
  • the value range of T1 is [16,30]°C
  • C8 -5800.2206
  • c9 1.3914993
  • c10 -0.04860239
  • c11 0.41764768*10-4
  • c12 -0.14452093*10-7
  • c13 6.5459673
  • the Td value range is [6,22]°C.
  • the compressor is adjusted according to the actual suction saturation temperature.
  • the target suction saturation temperature and the actual suction saturation temperature Te are compared. The difference is used to adjust the compressor frequency.
  • the indoor unit is provided with a set humidity
  • the set humidity is relative humidity
  • the relative humidity represents the ratio of the absolute humidity of the moist air to the maximum absolute humidity that can be reached at the same temperature. The more water vapor it can hold, the greater the maximum absolute humidity that the humid air can reach. Therefore, when the indoor temperature is higher, the indoor relative humidity is smaller, and when the indoor temperature is lower, the indoor relative humidity is higher.
  • the frequency of the compressor can be further adjusted according to the target dew point temperature, so that the current The indoor humidity is close to the set humidity.
  • the target suction saturation temperature can be obtained according to the target dew point temperature, and then the compressor frequency can be adjusted according to the difference between the actual suction saturation temperature of the compressor and the target suction saturation temperature, so that the indoor cooling can be improved by adjusting the compressor frequency. At the same time, adjust the indoor relative humidity.
  • a temperature correction value is obtained according to the current indoor humidity and the set humidity, and the temperature correction value is added to the target dew point temperature to obtain the target intake air saturation temperature.
  • the temperature correction is determined according to the difference between the current indoor humidity and the set humidity, when the humidity difference is different, the corresponding temperature correction value is also different, so that the compressor frequency and the indoor coil temperature are also different, so as to adjust the indoor temperature. Relative humidity.
  • the temperature correction value may include a first correction value and a second correction value.
  • the sum of the first correction value and the second correction value is equal to the temperature correction value.
  • the first correction value is calculated according to the difference between the set humidity and the current indoor humidity.
  • the second correction value is determined according to the empirical value. For example, the target dew point temperature Te, the target expression is as follows:
  • T e, target T d,s +f(T,H)-b
  • T d, s is the target dew point temperature
  • f(T, H) is the first correction value
  • -b is the second correction value.
  • the second correction value is a fixed preset value
  • the second correction value is generally set to 4°C
  • the range is generally a range of 0-10°C.
  • a correction value can be determined according to the duration that the difference is smaller than the minimum value of the preset humidity range. The first correction value is positively correlated with the duration.
  • the temperature correction value obtained last time can be used as the temperature correction value for this correction, and the temperature correction value is obtained regularly to correct the target suction saturation temperature regularly, for example, every 3 minutes Perform a correction process.
  • the first correction value f(T, H) is determined according to the humidity.
  • the first correction value is 0;
  • the first correction value is determined according to the duration that the difference value is less than the minimum value of the preset humidity range, and the difference between the first correction value and the difference value is less than the preset humidity range.
  • the duration of the minimum value is positively correlated; when the difference between the set humidity and the current indoor humidity is within the preset humidity range, the first correction value obtained last time is used as the first correction value this time.
  • the maximum value of the first correction does not exceed 8 °C.
  • the difference X when the compressor frequency is adjusted according to the difference X between the actual suction saturation temperature and the target suction saturation temperature, the difference X can be compared with a preset difference interval, for example, the difference interval can be [- 1,1]. If the difference X is within the difference range, the compressor frequency is not adjusted. If the difference value X is less than the minimum value of the difference value interval, reduce the compressor frequency, wherein the frequency adjustment value when the compressor frequency is reduced is positively correlated with the difference between the minimum value of the difference value interval and the difference value X, and the compressor frequency decreases The frequency adjustment action period at time is negatively correlated with the difference between the minimum value of the difference interval and the difference value X.
  • the compressor frequency increases the compressor frequency, wherein the frequency adjustment value when the compressor frequency increases is positively correlated with the difference between the difference X and the minimum value of the difference interval, and the compressor frequency increases
  • the frequency adjustment action period at time is negatively correlated with the difference between the difference X and the minimum value of the difference interval.
  • the target dew point temperature is obtained according to the set temperature and the set humidity of the indoor unit corresponding to the minimum temperature difference
  • the target suction saturation temperature is obtained according to the target dew point temperature
  • the actual suction saturation temperature of the compressor is obtained according to the and the target suction saturation temperature to adjust the compressor frequency to adjust the indoor humidity while the air conditioner is cooling, and adjust the compressor frequency through the actual suction saturation temperature on the low pressure side of the system, which can not only reduce the calculation when adjusting the compressor frequency
  • it can better meet the user's needs for temperature and humidity, and the system stability is better.
  • the step of adjusting the rotational speed of the outdoor fan according to the outdoor ambient temperature includes:
  • Step S43 obtaining a target heat exchange temperature according to an outdoor ambient temperature, where the target heat exchange temperature is greater than the outdoor ambient temperature;
  • the air conditioner when there is a demand for cooling indoors, the air conditioner turns on the cooling function.
  • the heat exchanger of the outdoor unit releases heat, and the high-temperature and high-pressure gaseous refrigerant in the outdoor heat exchanger condenses into a medium-temperature and high-pressure liquid state.
  • the refrigerant flows to the indoor heat exchanger to absorb heat.
  • the heat dissipation efficiency of the outdoor heat exchanger is related to the outdoor fan. The higher the rotation speed of the outdoor fan, the higher the heat dissipation efficiency of the outdoor heat exchanger.
  • the heat dissipation efficiency of the outdoor heat exchanger is also related to the outdoor ambient temperature.
  • the speed of the outdoor fan is controlled to achieve the outdoor ambient temperature after the refrigerant is condensed to achieve a better heat dissipation effect.
  • the outdoor ambient temperature is obtained, and the target heat exchange temperature of the outdoor heat exchanger is obtained according to the outdoor ambient temperature.
  • the outdoor ambient temperature can be added to the preset temperature empirical value to obtain the target heat exchange temperature greater than the outdoor ambient temperature.
  • the preset temperature empirical value should not be too large.
  • Step S44 adjusting the rotation speed of the outdoor fan according to the target heat exchange temperature.
  • the heat exchange efficiency of the outdoor heat exchanger is adjusted through the change of the rotation speed of the outdoor fan, so that the outlet refrigerant of the cold outdoor heat exchanger is adjusted.
  • the temperature is close to the target heat exchange temperature. In an ideal state, the outlet refrigerant temperature is equal to the target heat exchange temperature. In this way, the temperature of the refrigerant after heat exchange will be slightly higher than the outdoor ambient temperature reached after the refrigerant heat exchange in the conventional method.
  • the temperature of each indoor coil will also be slightly higher than that of the conventional method. After the temperature of each indoor coil is increased, the dehumidification capacity of each indoor unit will decrease, thereby reducing the refrigeration of each indoor unit. dehumidification capacity.
  • the exhaust gas saturation temperature of the compressor is obtained, and the exhaust gas saturation temperature is compared with the target heat exchange temperature, and when the exhaust gas saturation temperature is less than the target heat exchange temperature , reduce the speed of the outdoor fan to reduce the heat dissipation effect of the outdoor heat exchanger and increase the exhaust saturation temperature. If the exhaust saturation temperature is greater than the target heat exchange temperature, increase the speed of the outdoor fan to improve the heat exchange of the outdoor heat exchanger. Heat effect, increase the exhaust gas saturation temperature to maintain the exhaust gas saturation at the target heat exchange temperature, and the outlet refrigerant temperature of the outdoor heat exchanger is equal to the target heat exchange temperature.
  • the target heat exchange temperature Tfan T4+ ⁇ and the value range ⁇ [35, 55]°C, where the value range of ⁇ is [2, 12]°C, according to the exhaust saturation temperature Tc and
  • the difference Y of the target heat exchange temperature Tfan adjusts the speed of the outdoor fan, as follows:
  • Tfan T4+ ⁇
  • the value range of Tfan is ⁇ [35, 55]°C
  • the value range of m is [55, 65]°C.
  • the speed change of the fan can be accurate to 1 revolution;
  • the exhaust saturation temperature of the compressor refers to the saturation temperature corresponding to the exhaust pressure of the compressor.
  • the pressure and the corresponding saturation temperature can be obtained through relevant software or formulas, and the pressure and temperature conversion can be realized, as shown in the following formula:
  • the current indoor humidity when the air conditioner is cooling, the current indoor humidity is obtained. If the current indoor humidity is less than the humidity threshold, it indicates that the current humidity is too low. Therefore, the operation of the humidifying device of the air conditioner can be controlled, and the current indoor humidity is greater than or equal to the humidity. When the threshold value is reached, the humidification device is controlled to stop running.
  • the heat exchange temperature of the outdoor heat exchanger is made higher than the outdoor ambient temperature.
  • the heat exchange temperature is higher, and each indoor evaporation temperature It will also increase accordingly, thereby reducing the dehumidification capacity of each indoor unit when cooling.
  • the method further includes:
  • Step S50 when the ratio is greater than the preset ratio, adjust the opening degree of the electronic expansion valve of each indoor unit in the running state according to the exhaust gas temperature of the compressor.
  • the electronic expansion valve connected to the indoor heat exchanger in each indoor unit can also be controlled to perform comfort cooling, as shown in Figure 7, the opening degree of the electronic expansion valve of each indoor unit in the running state is adjusted according to the discharge temperature of the compressor. If the ratio is less than or equal to the preset ratio, the electronic expansion valve is controlled to perform conventional refrigeration, and the opening degree of the electronic expansion valve is adjusted according to the conventional refrigeration control logic.
  • the opening degree of the electronic expansion valve when the opening degree of the electronic expansion valve is adjusted according to the exhaust gas temperature, if the exhaust gas temperature is greater than or equal to the exhaust gas temperature threshold, the opening degree of the electronic expansion valve is adjusted to a preset value.
  • the preset opening degree is a small opening degree, for example, the preset opening degree can be 50P, to avoid the complete closing of the electronic expansion valve, which prevents the refrigerant from circulating, and the exhaust temperature is higher; if the exhaust temperature is less than the exhaust temperature threshold , then determine how to adjust the opening of the electronic expansion valve according to the degree of superheat of the exhaust gas.
  • the opening degree of the electronic expansion valve Refrigerate and reduce dehumidification; when the exhaust superheat degree is less than the minimum value of the preset superheat degree range, it indicates that the current opening degree of the electronic expansion valve may be large, which may cause the compressor suction to be filled with liquid and damage the compressor. Therefore, , the opening of the electronic expansion valve can be reduced.
  • the exhaust superheat degree is within the preset superheat degree range, a certain cooling capacity is provided to meet the cooling demand of indoor users, and at the same time, the problem of liquid in the suction is avoided.
  • the opening degree of the electronic expansion valve when reaching the temperature, the opening degree of the electronic expansion valve is 0;
  • the required opening adjustment is as follows:
  • the value range of E1 may be 50-120P; the value range of time t1 may be 40-120S.
  • the electronic expansion valve target number of steps is calculated once every X1 seconds; after t2 time and minutes, it is calculated once every X2 seconds.
  • the value range of t2 can be 5-15min; the value range of X1 can be 10s-30s; the value range of X2 can be 30s-70s.
  • the value range of k1 can be 50 ⁇ 90P; the value range of k2 can be 300 ⁇ 520P, where the rule of ⁇ E is:
  • the opening degree of the electronic expansion valve is adjusted according to the degree of superheat of the exhaust gas. Compared with the existing control method, the opening degree of the electronic expansion valve is smaller as a whole, so as to avoid the compressor from being damaged by liquid in the suction.
  • an embodiment of the present application also proposes a multi-connection, the multi-connection includes: a memory, a processor, and a multi-connection control program stored on the memory and running on the processor, the multi-connection When the control program is executed by the processor, the steps of the multi-connection control method described in the above embodiments are realized.
  • an embodiment of the present application also proposes a computer storage medium, where a multi-connection control program is stored on the computer storage medium, and the multi-connection control program is implemented by the processor when the multi-connection control program is executed by the processor. steps of the control method.

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Abstract

本申请公开了一种多联机及其控制方法、计算机存储介质，在多联机制冷时，获取处于运行状态的室内机；在处于运行状态的室内机中，获取存在湿度需求的室内机以及不存在湿度需求的室内机；根据运行状态的各个室内机的输出标称值确定湿度需求的比例，湿度需求的比例包括存在湿度需求的室内机的总输出标称值与不存在湿度需求的室内机的总输出标称值的比值，或者，存在湿度需求的室内机的总输出标称值与存在湿度需求的室内机以及不存在湿度需求的室内机的总输出标称值的比值；在比例大于预设比例时，根据室外环境温度调节室外风机的转速及/或根据处于运行状态的室内机对应的设定湿度调节压缩机频率。

Description

多联机及其控制方法、计算机存储介质
优先权信息
本申请要求于2020年10月13日申请的、申请号为202011094062.5的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及空调器技术领域，尤其涉及多联机及其控制方法、计算机存储介质。
背景技术
多联机空调在制冷时，通常是根据各个室内机的总制冷需求来调控室外机。在单个室内机的制冷需求过高时，总制冷需求也会过高，压缩机频率提高，使得各个室内机的蒸发温度都较低，除湿效果增强，各个室内机所在的房间除湿量较大，无法满足大多数房间的用户对于湿度的需求。
上述内容仅用于辅助理解本申请的技术方案，并不代表承认上述内容是现有技术。
发明内容
本申请的主要目的在于提供一种多联机及其控制方法、计算机存储介质，旨在确定各个室内机对于湿度的需求，根据湿度需求调节室外机，以满足室内大多数房间的湿度需求。
为实现上述目的，本申请提供一种多联机的控制方法，所述多联机的控制方法包括以下步骤：
在所述多联机制冷时，获取处于运行状态的室内机；
在处于运行状态的室内机中，获取存在湿度需求的室内机以及不存在湿度需求的室内机；
根据运行状态的各个室内机的输出标称值确定湿度需求的比例，所述湿度需求的比例包括存在湿度需求的室内机的总输出标称值与不存在湿度需求的室内机的总输出标称值的比值，或者，所述存在湿度需求的室内机的总输出标称值与存在湿度需求的室内机以及不存在湿度需求的室内机的总输出标称值的比值；
在所述比例大于预设比例时，根据室外环境温度调节室外风机的转速及/或根据处于运行状态的室内机对应的设定湿度调节压缩机频率。
在一实施例中，所述在处于运行状态的室内机中，获取存在湿度需求的室内机以及不存在湿度需求的室内机的步骤包括：
检测处于运行状态的室内机对应的作用空间的状态；
在处于运行状态且作用空间的状态为有人状态的室内机中，获取存在湿度需求的室内机以及不存在湿度需求的室内机。
在一实施例中，所述根据处于运行状态的室内机对应的设定湿度调节压缩机频率的步骤包括：
获取处于运行状态的各个室内机对应的当前室内温度与对应的设定温度的温差；
根据最小温差对应的所述室内机的设定温度以及设定湿度调节所述压缩机频率。
在一实施例中，所述根据所述温差最小的室内机对应的设定温度以及对应的设定湿度调节所述压缩机频率的步骤包括：
根据最小温差对应的所述室内机的设定温度以及设定湿度获取目标露点温度；
根据所述目标露点温度获取目标吸气饱和温度；
根据所述压缩机的实际吸气饱和温度以及所述目标吸气饱和温度调节所述压缩机频率。
在一实施例中，所述多联机的控制方法还包括：
在所述比例大于所述预设比例时，根据压缩机的排气温度调节处于运行状态的各个室内机的电子膨胀阀开度。
在一实施例中，所述根据压缩机的排气温度调节处于运行状态的各个室内机的电子膨胀阀开度的步骤包括：
在所述排气温度大于或等于排气温度阈值时，根据预设开度调整值调节处于运行状态的各个室内机的电子膨胀阀开度；
在所述排气温度小于所述排气温度阈值时，根据排气过热度调节处于运行状态的各个室内机的电子膨胀阀开度。
在一实施例中，所述根据室外环境温度调节室外风机的转速的步骤包括：
根据室外环境温度获取目标换热温度，所述目标换热温度大于所述室外环境温度；
根据所述目标换热温度调节所述室外风机的转速。
在一实施例中，所述根据所述目标换热温度调节所述室外风机的转速的步骤包括：
获取压缩机的排气饱和温度，所述排气饱和温度为所述压缩机的排气压力对应的饱和温度；
在所述排气饱和温度小于或等于所述目标换热温度，减小所述室外风机的转速；
在所述排气饱和温度大于目标换热温度时，增大所述室外风机的转速。
在一实施例中，所述多联机的控制方法还包括：
在所述比例小于预设比例时，根据处于运行状态的每一室内机的室内换热器出口温度调节所述室内机的电子膨胀阀开度。
在一实施例中，所述多联机的控制方法还包括：
在根据处于运行状态的每一室内机的室内换热器出口温度调节所述室内机的电子膨胀阀开度时，获取存在湿度需求的室内机对应的当前室内湿度；
若存在湿度需求的室内机对应的当前室内湿度小于第一湿度，控制所述存在湿度需求的室内机对应的加湿装置运行；
在所述加湿装置运行时，若检测到存在湿度需求的室内机对应的当前室内湿度大于第二湿度，控制所述加湿装置停止运行，其中，所述第二湿度大于所述第一湿度。
此外，为实现上述目的，本申请还提供一种多联机，所述多联机包括：存储器、处理器及存储在所述存储器上并可在所述处理器上运行的多联机的控制程序，所述多联机的控制程序被所述处理器执行时实现如上所述中任一项所述的多联机的控制方法的步骤。
此外，为实现上述目的，本申请还提供一种计算机存储介质，所述计算机存储介质上存储有多联机的控制程序，所述多联机的控制程序被处理器执行时实现如上所述中任一项所述的多联机的控制方法的步骤。
本申请实施例提出的多联机及其控制方法、计算机存储介质，在所述多联机制冷时，获取处于运行状态的室内机，在处于运行状态的室内机中，获取存在湿度需求的室内机以及不存在湿度需求的室内机，根据运行状态的各个室内机的输出标称值确定湿度需求的比例，所述湿度需求的比例包括存在湿度需求的室内机的总输出标称值与存在湿度需求的室内机以及不存在湿度需求的室内机的总输出标称值的比值，或者，所述存在湿度需求的室内机的总输出标称值与处于运行状态的室内机的总输出标称值的比值，在所述比例大于预 设比例时，根据室外环境温度调节室外风机的转速及/或根据处于运行状态的室内机对应的设定湿度调节压缩机频率。本申请通过确定运行状态的各个室内机对于湿度的需求，根据湿度需求的大小调节室外风机以及压缩机，以调节各个室内机的除湿能力，使室内湿度满足室内大多数房间的湿度需求。
附图说明
图1是本申请实施例方案涉及的硬件运行环境的终端结构示意图；
图2为本申请多联机的控制方法的一实施例的流程示意图；
图3为本申请多联机的控制方法另一实施例的流程示意图；
图4为本申请多联机的控制方法再一实施例的流程示意图；
图5为本申请多联机的控制方法又一实施例的流程示意图；
图6为本申请多联机的整体连接关系示意图；
图7为本申请整体控制逻辑的一示意图；
图8为本申请舒适制冷的控制逻辑示意图；
图9为本申请室外风机的控制逻辑示意图；
图10为本申请电子膨胀阀的控制逻辑示意图；
图11为本申请整体控制逻辑的又一示意图。
本申请目的的实现、功能特点及优点将结合实施例，参照附图做进一步说明。
具体实施方式
应当理解，此处所描述的具体实施例仅仅用以解释本申请，并不用于限定本申请。
本申请实施例提供一种解决方案，通过确定运行状态的各个室内机对于湿度的需求，根据湿度需求的大小调节室外风机以及压缩机，以调节各个室内机的除湿能力，使室内湿度满足室内大多数房间的湿度需求。
如图1所示，图1是本申请实施例方案涉及的硬件运行环境的终端结构示意图。
本申请实施例终端为多联机空调器。
如图1所示，该终端可以包括：处理器1001，例如CPU，通信总线1002，用户接口1003，存储器1004。其中，通信总线1002用于实现这些组件之间的连接通信。用户接口1003可以包括显示屏(Display)、输入单元比如键盘(Keyboard)，可选用户接口1003还可以包括标准的有线接口、无线接口。存储器1004可以是高速RAM存储器，也可以是稳定的存储器(non-volatile memory)，例如磁盘存储器。存储器1004可选的还可以是独立于前述处理器1001的存储装置。
本领域技术人员可以理解，图1中示出的终端结构并不构成对终端的限定，可以包括比图示更多或更少的部件，或者组合某些部件，或者不同的部件布置。
如图1所示，作为一种计算机存储介质的存储器1004中可以包括用户接口模块以及多联机的控制程序。
在图1所示的终端中，用户接口1003主要用于连接客户端(用户端)，与客户端进行数据通信；而处理器1001可以用于调用存储器1004中存储的多联机的控制程序，并执行以下操作：
在所述多联机制冷时，获取处于运行状态的室内机；
在处于运行状态的室内机中，获取存在湿度需求的室内机以及不存在湿度需求的室内机；
根据运行状态的各个室内机的输出标称值确定湿度需求的比例，所述湿度需求的比例 包括存在湿度需求的室内机的总输出标称值与不存在湿度需求的室内机的总输出标称值的比值，或者，所述存在湿度需求的室内机的总输出标称值与存在湿度需求的室内机以及不存在湿度需求的室内机的总输出标称值的比值；
在所述比例大于预设比例时，根据室外环境温度调节室外风机的转速及/或根据处于运行状态的室内机对应的设定湿度调节压缩机频率。
进一步地，处理器1001可以调用存储器1004中存储的多联机的控制程序，还执行以下操作：
检测处于运行状态的室内机对应的作用空间的状态；
在处于运行状态且作用空间的状态为有人状态的室内机中，获取存在湿度需求的室内机以及不存在湿度需求的室内机。
进一步地，处理器1001可以调用存储器1004中存储的多联机的控制程序，还执行以下操作：
获取处于运行状态的各个室内机对应的当前室内温度与对应的设定温度的温差；
根据最小温差对应的所述室内机的设定温度以及设定湿度调节所述压缩机频率。
进一步地，处理器1001可以调用存储器1004中存储的多联机的控制程序，还执行以下操作：
根据最小温差对应的所述室内机的设定温度以及设定湿度获取目标露点温度；
根据所述目标露点温度获取目标吸气饱和温度；
根据所述压缩机的实际吸气饱和温度以及所述目标吸气饱和温度调节所述压缩机频率。
进一步地，处理器1001可以调用存储器1004中存储的多联机的控制程序，还执行以下操作：
在所述比例大于所述预设比例时，根据压缩机的排气温度调节处于运行状态的各个室内机的电子膨胀阀开度。
进一步地，处理器1001可以调用存储器1004中存储的多联机的控制程序，还执行以下操作：
在所述排气温度大于或等于排气温度阈值时，根据预设开度调整值调节处于运行状态的各个室内机的电子膨胀阀开度；
在所述排气温度小于所述排气温度阈值时，根据排气过热度调节处于运行状态的各个室内机的电子膨胀阀开度。
进一步地，处理器1001可以调用存储器1004中存储的多联机的控制程序，还执行以下操作：
根据室外环境温度获取目标换热温度，所述目标换热温度大于所述室外环境温度；
根据所述目标换热温度调节所述室外风机的转速。
进一步地，处理器1001可以调用存储器1004中存储的多联机的控制程序，还执行以下操作：
获取压缩机的排气饱和温度，所述排气饱和温度为所述压缩机的排气压力对应的饱和温度；
在所述排气饱和温度小于或等于所述目标换热温度，减小所述室外风机的转速；
在所述排气饱和温度大于目标换热温度时，增大所述室外风机的转速。
进一步地，处理器1001可以调用存储器1004中存储的多联机的控制程序，还执行以下操作：
在所述比例小于预设比例时，根据处于运行状态的每一室内机的室内换热器出口温度调节所述室内机的电子膨胀阀开度。
进一步地，处理器1001可以调用存储器1004中存储的多联机的控制程序，还执行以 下操作：
在根据处于运行状态的每一室内机的室内换热器出口温度调节所述室内机的电子膨胀阀开度时，获取存在湿度需求的室内机对应的当前室内湿度；
若存在湿度需求的室内机对应的当前室内湿度小于第一湿度，控制所述存在湿度需求的室内机对应的加湿装置运行；
在所述加湿装置运行时，若检测到存在湿度需求的室内机对应的当前室内湿度大于第二湿度，控制所述加湿装置停止运行，其中，所述第二湿度大于所述第一湿度。
参照图2，在一实施例中，所述多联机的控制方法包括以下步骤：
步骤S10，在所述多联机制冷时，获取处于运行状态的室内机；
步骤S20，在处于运行状态的室内机中，获取存在湿度需求的室内机以及不存在湿度需求的室内机；
在本实施例中，实施例终端为如图6所示的多联机空调器。多联机中不同室内机对应的作用空间不同，在某一作用空间存在制冷需求时，对应的室内机启动并在该作用空间内制冷。在多联机制制冷时，定时获取处于运行状态的室内机，并定时检测处于运行状态的各个室内机是否存在湿度需求，以确定存在湿度需求的室内机以及不存在湿度需求的室内机。
在一实施例中，判断处于运行状态的室内机是否满足预设的湿度需求条件，若满足湿度需求条件，则判定该室内机存在湿度需求，若不满足湿度需求条件，则判定该室内机不存在湿度需求。在一实施例中，湿度需求条件可包括该室内机接收到用户触发的湿度需求指令、该室内机的当前室内湿度低于湿度阈值、该室内机的当前室内温度与设定温度的差值小于预设差值以及该室内机的当前室内温度达到设定温度所需的降温时长小于预设时长中的至少一个，其中，预设时长为用户可接受的降温时长，即用户希望最好在多长时间内当前室内环境温度就达到设定温度。
在一实施例中，由于室内环境是否舒适相对于用户而言的，不存在用户的室内环境参数的调节是无法发挥作用的，因此，如图11所示，在处于运行状态的室内机中，获取存在湿度需求的室内机以及不存在湿度需求的室内机时，还可先检测处于运行状态的各个室内机对应的作用空间的状态，若室内机处于运行状态且对应的作用空间的状态为有人状态，则需要考虑该室内机的湿度需求，若室内机处于运行状态，但对应的作用空间的状态为无人状态，则无需考虑该室内机的湿度需求，因此，可针对处于运行状态且作用空间的状态为有人状态的室内机，获取存在湿度需求的室内机以及不存在湿度需求的室内机，并根据运行状态且作用空间的状态为有人状态的各个室内机的输出标称值来确定湿度需求的比例，而对于未处于运行状态的室内机以及处于运行状态且对应的作用空间的状态为无人状态的室内机，则忽略其湿度需求。需要说明的是，舒适是主观性的，仅针对有人的室内机进行湿度需求判断是比较符合实际的，无人的室内机的制冷，在降温时间上没有要求，最终实现温湿度控制即可，则此类内机为附庸，并可按照有人的室内机控制逻辑进行调节。
步骤S30，根据运行状态的各个室内机的输出标称值确定湿度需求的比例，所述湿度需求的比例包括存在湿度需求的室内机的总输出标称值与不存在湿度需求的室内机的总输出标称值的比值，或者，所述存在湿度需求的室内机的总输出标称值与存在湿度需求的室内机以及不存在湿度需求的室内机的总输出标称值的比值；
在本实施例中，由于不同类型室内机的制冷能力可能存在差异，因此，可获取处于运行状态的各个室内机的输出标称值，以确定存在湿度需求的室内机的总输出标称值，根据存在湿度需求的室内机的总输出标称值确定湿度需求的比例。在一实施例中，湿度需求的比例可以包括存在湿度需求的室内机的总输出标称值与不存在湿度需求的室内机的总输出标称值的比值，或者，计算存在湿度需求的室内机以及不存在湿度需求的室内机的总输 出标称值，湿度需求的比例包括存在湿度需求的室内机的总输出标称值与存在湿度需求的室内机以及不存在湿度需求的室内机的总输出标称值的比值。湿度需求的比例用于表征所有室内用户对于湿度的需求程度。
步骤S40，在所述比例大于预设比例时，根据室外环境温度调节室外风机的转速及/或根据处于运行状态的室内机对应的设定湿度调节压缩机频率。
在本实施例中，如图7所示，在湿度需求的比例大于预设比例，表明所有室内用户对于湿度的需求程度较大，因此，可控制室外机进行舒适制冷，执行根据室外环境温度调节室外风机的转速及/或根据处于运行状态的室内机对应的设定湿度调节压缩机频率，在制冷的同时减少除湿，尽量满足室内用户对于湿度的需求。在湿度需求的比例小于或等于预设比例时，表明所有室内用户对于湿度的需求程度小，因此，可控制室外机进行常规制冷，按照常规制冷控制逻辑控制室外风机及/或压缩机频率。例如，预设比例可以为50％，在比例大于50％时，控制多联机的室外风机、压缩机、电子膨胀阀以及处于运行状态的各个室内机均进入或者维持舒适制冷，在比例小于或等于50％，控制多联机的室外风机、压缩机、电子膨胀阀以及处于运行状态的各个室内机均进入或者维持常规制冷。
在一实施例中，在根据室外环境温度调节室外风机的转速时，通过调节室外风机的转速，调整室外换热器的散热效率，以使冷媒在室外换热器中冷凝后达到的温度高于室外环境温度，即室外换热器的出口冷媒温度高于室外环境温度，这样，室内盘管温度也会相应提高，减少各个室内机的除湿量，以满足室内用户的湿度需求。在根据处于运行状态的室内机对应的设定湿度调节压缩机频率时，通过考虑湿度的需求，并根据湿度需求来调节压缩机频率，也使室内相对湿度基本达到室内设定湿度，以满足室内用户的湿度需求。
在一实施例中，如图6所示，多联机还包括加湿模块，加湿模块用于分别给各个室内机提供加湿能力，在湿度需求的比例大于预设比例时，还可控制各个室内机进行加湿。在一实施例中，在湿度需求的比例大于预设比例时，还可检测各个室内机的当前室内温度，若当前室内温度与设定温度的差值小于预设值，则控制该室内机加湿，例如，在当前室内温度与设定温度的差值小于2，且当前室内湿度小于50％时，控制该室内机加湿，并在检测到当前室内湿度大于65％时控制该室内机停止加湿。在一实施例中，在空调器常规制冷，制冷能力较强时，加湿模块不运行，避免加湿模块产生的水蒸气迅速凝结成水珠，造成室内环境潮湿。
在一实施例中，在比例小于预设比例时，表明所有室内用户对于湿度的需求程度较大，由于此时室外机按照常规制冷逻辑进行控制，因此，即使是存在湿度需求的室内机，也需按照常规制冷逻辑进行控制，以避免存在湿度需求的室内机的电子膨胀阀开度过小、流量偏小，导致室外机排气温度偏高，影响制冷房间效果，即处于运行状态的所有室内机均须按照常规制冷逻辑进行控制，根据室内机的室内换热器出口温度调节对应的室内机的电子膨胀阀开度。
在一实施例中，存在湿度需求的室内机也按照规制冷逻辑控制时，存在湿度需求的室内机的湿度需求可能无法满足，此时，可获取存在湿度需求的室内机对应的当前室内湿度，若存在湿度需求的室内机对应的当前室内湿度小于第一湿度，表明该室内机的湿度需求无法满足，因此可控制存在湿度需求的室内机对应的加湿装置运行。在加湿装置运行时，若检测到存在湿度需求的室内机对应的当前室内湿度大于第二湿度，表明该室内机的湿度需求得到满足，因此可检测加湿装置停止加湿，其中，第二湿度大于第一湿度，例如，第一湿度可以是50％，第二湿度可以是65％。在一实施例中，若存在湿度需求的室内机对应的当前室内湿度小于第一湿度，还可进一步检测存在湿度需求的室内机对应的当前室内温度与对应的设定温度的差值，若差值小于预设差值时，执行控制存在湿度需求的室内机对应的加湿装置运行的步骤。
在本实施例公开的技术方案中，通过确定运行状态的各个室内机对于湿度的需求，根 据湿度需求的大小调节室外风机以及压缩机，以调节各个室内机的除湿能力，使室内湿度满足室内大多数房间的湿度需求。
在另一实施例中，如图3所示，在上述图2所示的实施例基础上，所述根据处于运行状态的室内机对应的设定湿度调节压缩机频率的步骤包括：
步骤S41，获取处于运行状态的各个室内机对应的当前室内温度与对应的设定温度的温差；
在本实施例中，如图8所示，在控制压缩机进行舒适制冷时，获取处于运行状态的各个室内机对应的作用空间内的当前室内温度以及处于运行状态的各个室内机的设定温度，设定温度可由用户根据制冷需求进行设置。针对每一室内机，计算对应的当前室内温度与对应的设定温度的温差，温差用于表征该室内机对应的室内用户的制冷需求。
步骤S42，根据最小温差对应的所述室内机的设定温度以及设定湿度调节所述压缩机频率。
在本实施例中，在获取到处于运行状态的各个室内机对应的温差后，确定温差最小的室内机，并根据该最小温差对应的室内机对应的设定温度以及设定湿度调节压缩机频率，即根据制冷需求最小的室内环境参数来调节压缩机频率，以使压缩机提供最少的制冷能力，避免制冷能力较高时造成各个室内机的初始量较大。
在一实施例中，在根据最小温差对应的室内机对应的设定温度以及设定湿度调节压缩机频率时，根据空调器的设定温度和设定湿度获取目标露点温度，再根据目标露点温度获取压缩机的目标吸气饱和温度，其中，目标吸气饱和温度为压缩机的吸气口需要达到的冷媒饱和温度，压缩机吸气口的实际饱和温度为吸气口的吸气压力对应的实际饱和温度，而设定温度和设定湿度均为预先设置在室内机的目标值，可由用户进行设置和调节。
在一实施例中，在根据设定温度和设定湿度获取目标露点温度时，可根据露点温度对应的计算公式来确定，露点公式的计算公式如下：
Figure PCTCN2021096571-appb-000001
其中，Td为露点温度，T为温度，H1为湿度。在计算目标露点温度时，将设定温度作为T，设定湿度作为H1，计算得到的Td为目标露点温度。H1为相对湿度，取值范围[20％，90％]，T＝T1+273.15，其中T1取值范围[16,30]℃，C8＝-5800.2206，c9＝1.3914993，c10＝-0.04860239，c11＝0.41764768*10-4，c12＝-0.14452093*10-7，c13＝6.5459673，Td取值范围[6,22]℃。
***正常初始化运行后，压缩机根据实际吸气饱和温度进行调节，在室内机不同湿度的情况下，均对应有一个目标吸气饱和温度，比较目标吸气饱和温度与实际的吸气饱和温度Te的差值进行压缩机频率调节。
在一实施例中，室内机设置有设定湿度，设定湿度为相对湿度，相对湿度表示湿空气的绝对湿度与相同温度下可能达到的最大绝对湿度之比，由于温度越高，空气中所能容纳的水汽越多，湿空气可能达到的最大绝对湿度也越大，因此，在室内温度越高时，室内相对湿度越小，在室内温度越低时，室内相对湿度越大。在通过调节压缩机频率，以改变室内盘管温度制冷时，随着室内温度的逐渐降低，室内相对湿度必然是逐渐增大的，因此，可根据目标露点温度进一步调节压缩机的频率，使得当前室内湿度趋近于设定湿度。具体地，可根据目标露点温度获取目标吸气饱和温度，再根据压缩机的实际吸气饱和温度与目标吸气饱和温度的差值调节压缩机频率，以在通过压缩机频率的调节对室内制冷的同时，调节室内相对湿度。
在一实施例中，在目标露点温度获取目标吸气饱和温度时，根据当前室内湿度以及设定湿度获取温度修正值，并根据温度修正值与目标露点温度相加，以得到目标吸气饱和温度，由于温度修正是根据当前室内湿度与设定湿度之间的差距来确定的，在湿度差距不同时，对应的温度修正值也不同，使得压缩机频率和室内盘管温度也不同，以调节室内相对湿度。
在一实施例中，由于室内换热器中的冷媒与室内空气之间存在传热温差，在室内换热器中的冷媒温度比室内空气略低时，才可实现室内制冷的目的，因此，温度修正值可包括第一修正值和第二修正值，第一修正值与第二修正值之和等于温度修正值，第一修正值根据设定湿度与当前室内湿度的差值进行计算，第二修正值根据经验值确定。例如，目标露点温度T e,目标的表达式如下：
T e，目标＝T d,s+f(T,H)-b
其中，T d,s为目标露点温度，f(T,H)为第一修正值，-b为第二修正值。
在一实施例中，第二修正值为固定不变的预设值，第二修正值一般设置为4℃，范围一般为范围0～10℃。在确定温度修正值时，若设定湿度与当前室内湿度的差值大于预设湿度范围的最大值，表明设定湿度与当前室内湿度的差距较大，需要提高相对湿度的增大速率，对应的第一修正值为0，此时的温度修正值最小，温度修正值为预设值，以使目标吸气饱和温度也较小，实际吸气饱和温度与目标吸气饱和温度的差值较大，增大压缩机频率以将实际吸气饱和温度快速调节至目标吸气饱和温度，室内温度下降速率加快的同时提高当前室内湿度的增大速率；若设定湿度与当前室内湿度的差值小于预设湿度范围的最小值，表明设定湿度与当前室内湿度的差距较小，可逐渐减小相对湿度的增大速率，以使当前室内湿度稳定在设定湿度附近，因此，对应的第一修正值可根据差值小于预设湿度范围的最小值的持续时间来确定，第一修正值与持续时长正相关，在持续时间越长时，第一修正值越大，以使温度修正值也逐渐增大，目标吸气饱和温度较大，实际吸气饱和温度与目标吸气饱和温度的差值较小，减小压缩机频率以将实际吸气饱和温度缓慢调节至目标吸气饱和温度，室内温度下降速率减缓的同时降低当前室内湿度的增大速率，以使当前室内湿度稳定于设定湿度附近；若设定湿度与当前室内湿度的差值处于预设湿度范围内，表明相对湿度的增大速率合适，可将上一次获取的温度修正值作为本次修正的温度修正值，其中，定时获取温度修正值，以定时对目标吸气饱和温度进行修正，例如，可每间隔3分钟进行一次修正过程。综上，第一修正值f(T,H)根据湿度进行确定，在设定湿度与当前室内湿度的差值大于预设湿度范围的最大值时，第一修正值为0；在设定湿度与当前室内湿度的差值小于预设湿度范围的最小值时，根据差值小于预设湿度范围的最小值的持续时间确定第一修正值，第一修正值与差值小于预设湿度范围的最小值的持续时间正相关；在设定湿度与当前室内湿度的差值处于预设湿度范围内时，将上一次获取的第一修正值作为本次的第一修正值。其中，第一修正值最大不超过8℃。
在一实施例中，在根据实际吸气饱和温度与目标吸气饱和温度的差值X调节压缩机频率时，可比较差值X与预设差值区间，例如，差值区间可以是[-1,1]。若差值X处于差值区间内，不对压缩机频率进行调整。若差值X小于差值区间的最小值，降低压缩机频率，其中，压缩机频率降低时的频率调整值，与差值区间的最小值与差值X的差值正相关，压缩机频率降低时的频率调整动作周期，与差值区间的最小值与差值X的差值负相关。若差值X大于差值区间的最大值，提高压缩机频率，其中，压缩机频率提高时的频率调整值，与差值X与差值区间的最小值的差值正相关，压缩机频率提高时的频率调整动作周期，与差值X与差值区间的最小值的差值负相关。
在本实施例公开的技术方案中，根据最小温差对应的室内机的设定温度和设定湿度获取目标露点温度，根据目标露点温度获取目标吸气饱和温度，根据压缩机的实际吸气饱和温度以及目标吸气饱和温度调节压缩机频率，以在空调器制冷的同时调节室内湿度，并且， 通过***低压侧的实际吸气饱和温度来调节压缩机频率，不仅可以减少调节压缩机频率时的计算量，同时更加满足用户对于温度和湿度的需求，并且***稳定性更好。
在再一实施例中，如图4所示，在图2至图3任一实施例所示的基础上，所述根据室外环境温度调节室外风机的转速的步骤包括：
步骤S43，根据室外环境温度获取目标换热温度，所述目标换热温度大于所述室外环境温度；
在本实施例中，在室内存在制冷需求时，空调器开启制冷功能，在空调器制冷时，室外机的换热器放热，室外换热器中的高温高压气态冷媒冷凝为中温高压的液态冷媒，流向室内换热器进行吸热。其中，室外换热器的散热效率与室外风机有关，室外风机的转速越高时，室外换热器的散热效率越高，同时，室外换热器的散热效率还与室外环境温度有关，在室外换热器中的冷媒温度与室外环境温度的差值越大时，室外换热器的散热效率也越大，因此，在控制室外风机时，一般是根据室外环境温度与冷媒温度的差值来控制室外风机的转速，以冷媒冷凝后达到室外环境温度，实现较好的散热效果。
在控制室外风机进行舒适制冷时，获取室外环境温度，并根据室外环境温度获取室外换热器的目标换热温度，目标换热温度为冷媒经过室外换热器的换热后需要达到的温度。在根据室外环境温度获取目标换热温度时，可将室外环境温度与预设的温度经验值相加，得到大于室外环境温度的目标换热温度，其中，预设的温度经验值不宜过大，在预设的温度经验值太大时，经室外换热器换热的冷媒温度过高，使得室内换热器的制冷效果太差，无法满足室内用户的制冷需求。
步骤S44，根据所述目标换热温度调节所述室外风机的转速。
在本实施例中，根据大于室外环境温度的目标换热温度调节室外风机的转速时，通过室外风机转速的变化，调节室外换热器的换热效率，以使冷室外换热器的出口冷媒温度趋近目标换热温度，在理想状态下，出口冷媒温度等于目标换热温度，这样，冷媒换热后的温度会比常规方式时冷媒换热后达到的室外环境温度要略高，在冷媒流入各个室内换热器的盘管后，各个室内盘管温度也会相比于常规方式时略高，在各个室内盘管温度提高后，各个室内机的除湿能力降低，从而减小各个室内机制冷时的除湿量。
在一实施例中，在根据目标换热温度调节室外风机的转速时，获取压缩机的排气饱和温度，比较排气饱和温度与目标换热温度，在排气饱和温度小于目标换热温度时，减小室外风机的转速，以降低室外换热器的散热效果，提高排气饱和温度，若排气饱和温度大于目标换热温度，增大室外风机的转速，以提高室外换热器的换热效果，提高排气饱和温度，以将排气饱和维持在目标换热温度，室外换热器的出口冷媒温度等于目标换热温度。例如，如图9所示，目标换热温度Tfan＝T4+β且取值范围∈[35，55]℃，其中β的取值范围为[2，12]℃，根据排气饱和温度Tc与目标换热温度Tfan的差值Y调节室外风机转速，具体如下：
***正常初始化运行后，若Y≠0则每t1时间调节一次室外风机转速，若Y＝0则每t2时间，调节一次室外风机转速，其中，t2大于t1。
室外风机转速的调整规则如下：
当Tc＜Tfan时，根据Tc-Tfan降低室外风机转速；
当Tfan≤Tc≤Tfan+α时，维持室外风机的当前转速；
当Tfan+α＜Tc＜m时，根据Tc-Tfan-α提高室外风机转速；
当Tc≥m℃时，控制室外风机以最大转速运行，尽快降低排气饱和温度，避免排气饱和温度异常偏高。
其中，Tfan＝T4+β，且Tfan取值范围∈[35，55]℃，m取值范围为[55，65]℃。
风机转速取整方法：
(1)无级调速风机情况，风机转速变化可以精确到1转；
室外风机的转速调整值△X正常取值之后，乘以相应的档位，比如20转/档，那么风机转速变化是△X*20取整数。
(2)不是无级调数或者其它简化控制手段；
△X正常取值后，直接取整数数，采用四舍五入的方法，0.1～0.4归0，0.5～1.4归1，那么风机转速变化就是取整后的数值乘以档位换算值，比如[△X]*20。
在一实施例中，压缩机的排气饱和温度指压缩机的排气压力对应的饱和温度。其中，根据冷媒物性，可通过相关软件或者公式求得压力与对应饱和温度，实现压力和温度转换，如下式所示：
Figure PCTCN2021096571-appb-000002
在一实施例中，在空调器制冷时，获取当前室内湿度，若当前室内湿度小于湿度阈值，表明当前湿度过低，因此，可控制空调器的加湿装置运行，在当前室内湿度大于或等于湿度阈值时，控制加湿装置停止运行。
在本实施例公开的技术方案中，通过调节室外风机的转速，使得室外换热器的换热温度高于室外环境温度，相比于现有调控方式，换热温度更高，各个室内蒸发温度也会相应提高，从而减小各个室内机制冷时的除湿量。
在又一实施例中，如图5所示，在图2至图4任一实施例所示的基础上，步骤S30之后，还包括：
步骤S50，在所述比例大于所述预设比例时，根据压缩机的排气温度调节处于运行状态的各个室内机的电子膨胀阀开度。
在本实施例中，在根据运行状态的各个室内机的输出标称值确定湿度需求的比例后，若比例大于预设比例，还可控制各个室内机中与室内换热器连接的电子膨胀阀来进行舒适制冷，如图7所示，根据压缩机的排气温度调节处于运行状态的各个室内机的电子膨胀阀开度。若比例小于或等于预设比例，则控制电子膨胀阀进行常规制冷，按照常规制冷控制逻辑调节电子膨胀阀的开度。
在一实施例中，如图10所示，在根据排气温度调节电子膨胀阀的开度时，若排气温度大于或等于排气温度阈值，则将电子膨胀阀的开度调节至预设开度，预设开度为较小开度，例如，预设开度可以是50P，避免电子膨胀阀完全关闭导致冷媒无法循环，排气温度更高；若排气温度小于排气温度阈值时，则根据排气过热度确定如何调节电子膨胀阀的开度。
在一实施例中，在排气过热度大于预设过热度范围的最大值时，表明当前制冷能力偏高，因此，可增大电子膨胀阀的开度，以减小排气过热度，降低制冷并减小除湿；在排气过热度小于预设过热度范围的最小值时，表明电子膨胀阀的当前开度可能较大，可能造成压缩机吸气带液，损坏压缩机的问题，因此，可减小电子膨胀阀的开度。而在排气过热度处于预设过热度范围内时，提供了一定的制冷能力，满足室内用户的制冷需求，同时又避免了吸气带液的问题。
在一实施例中，达温时，电子膨胀阀开度为0；
有能需的开度调节如下：
1)初始步数E1并持续时间t1，然后按自动控制方式运行。
E1的取值范围可以为50～120P；时间t1的取值范围可以为40～120S。
2)进入自动控制，t2时间以内，电子膨胀阀目标步数每X1秒计算一次；t2时间分钟以后每X2秒计算一次。
t2的取值范围可以为5～15min；X1的取值范围可以为10s～30s；X2的取值范围可以为30s～70s。
电子膨胀阀开度调节公式如下：
E＝E1+□E，ΔE的范围为[k1,k2]
k1的取值范围可以为50～90P；k2的取值范围可以为300～520P，其中，ΔE的规则为：
⑴当排气温度TP≥100℃时，ΔE＝50P，避免阀关死造成冷媒不循环，排气温度更高；
⑵当排气温度TP＜100℃时，根据排气过热度调节电子膨胀阀开度。具体地，在排气过热度大于预设过热度范围的最大值时，增加电子膨胀阀开度，在排气过热度处于预设过热度范围内时，不调整电子膨胀阀开度。在排气过热度小于预设过热度范围的最小值时，减小电子膨胀阀开度。其中，电子膨胀阀的开度调整值可根据室内换热器出口温度与室内换热器进口温度的差值来确定。
在本实施例公开的技术方案中，根据排气过热度调节电子膨胀阀开度，相比于现有控制方式，电子膨胀阀的开度整体较小，避免吸气带液损坏压缩机。
此外，本申请实施例还提出一种多联机，所述多联机包括：存储器、处理器及存储在所述存储器上并可在所述处理器上运行的多联机的控制程序，所述多联机的控制程序被所述处理器执行时实现如上各个实施例所述的多联机的控制方法的步骤。
此外，本申请实施例还提出一种计算机存储介质，所述计算机存储介质上存储有多联机的控制程序，所述多联机的控制程序被处理器执行时实现如上各个实施例所述的多联机的控制方法的步骤。
需要说明的是，在本文中，术语“包括”、“包含”或者其任何其他变体意在涵盖非排他性的包含，从而使得包括一系列要素的过程、方法、物品或者***不仅包括那些要素，而且还包括没有明确列出的其他要素，或者是还包括为这种过程、方法、物品或者***所固有的要素。在没有更多限制的情况下，由语句“包括一个……”限定的要素，并不排除在包括该要素的过程、方法、物品或者***中还存在另外的相同要素。
上述本申请实施例序号仅仅为了描述，不代表实施例的优劣。
通过以上的实施方式的描述，本领域的技术人员可以清楚地了解到上述实施例方法可借助软件加必需的通用硬件平台的方式来实现，当然也可以通过硬件，但很多情况下前者是更佳的实施方式。基于这样的理解，本申请的技术方案本质上或者说对现有技术做出贡献的部分可以以软件产品的形式体现出来，该计算机软件产品存储在如上所述的一个存储介质(如ROM/RAM、磁碟、光盘)中，包括若干指令用以使得一台终端设备(可以是手机，计算机，服务器，空调器，或者网络设备等)执行本申请各个实施例所述的方法。
以上仅为本申请的优选实施例，并非因此限制本申请的专利范围，凡是利用本申请说明书及附图内容所作的等效结构或等效流程变换，或直接或间接运用在其他相关的技术领域，均同理包括在本申请的专利保护范围内。

Claims (12)

  1. 一种多联机的控制方法，其中，所述多联机的控制方法包括以下步骤：
    在所述多联机制冷时，获取处于运行状态的室内机；
    在处于运行状态的室内机中，获取存在湿度需求的室内机以及不存在湿度需求的室内机；
    根据运行状态的各个室内机的输出标称值确定湿度需求的比例，所述湿度需求的比例包括存在湿度需求的室内机的总输出标称值与不存在湿度需求的室内机的总输出标称值的比值，或者，所述存在湿度需求的室内机的总输出标称值与存在湿度需求的室内机以及不存在湿度需求的室内机的总输出标称值的比值；
    在所述比例大于预设比例时，根据室外环境温度调节室外风机的转速及/或根据处于运行状态的室内机对应的设定湿度调节压缩机频率。
  2. 如权利要求1所述的多联机的控制方法，其中，所述在处于运行状态的室内机中，获取存在湿度需求的室内机以及不存在湿度需求的室内机的步骤包括：
    检测处于运行状态的室内机对应的作用空间的状态；
    在处于运行状态且作用空间的状态为有人状态的室内机中，获取存在湿度需求的室内机以及不存在湿度需求的室内机。
  3. 如权利要求1所述的多联机的控制方法，其中，所述根据处于运行状态的室内机对应的设定湿度调节压缩机频率的步骤包括：
    获取处于运行状态的各个室内机对应的当前室内温度与对应的设定温度的温差；
    根据最小温差对应的所述室内机的设定温度以及设定湿度调节所述压缩机频率。
  4. 如权利要求3所述的多联机的控制方法，其中，所述根据所述温差最小的室内机对应的设定温度以及对应的设定湿度调节所述压缩机频率的步骤包括：
    根据最小温差对应的所述室内机的设定温度以及设定湿度获取目标露点温度；
    根据所述目标露点温度获取目标吸气饱和温度；
    根据所述压缩机的实际吸气饱和温度以及所述目标吸气饱和温度调节所述压缩机频率。
  5. 如权利要求1所述的多联机的控制方法，其中，所述多联机的控制方法还包括：
    在所述比例大于所述预设比例时，根据压缩机的排气温度调节处于运行状态的各个室内机的电子膨胀阀开度。
  6. 如权利要求5所述的多联机的控制方法，其中，所述根据压缩机的排气温度调节处于运行状态的各个室内机的电子膨胀阀开度的步骤包括：
    在所述排气温度大于或等于排气温度阈值时，根据预设开度调整值调节处于运行状态的各个室内机的电子膨胀阀开度；
    在所述排气温度小于所述排气温度阈值时，根据排气过热度调节处于运行状态的各个室内机的电子膨胀阀开度。
  7. 如权利要求1所述的多联机的控制方法，其中，所述根据室外环境温度调节室外风机的转速的步骤包括：
    根据室外环境温度获取目标换热温度，所述目标换热温度大于所述室外环境温度；
    根据所述目标换热温度调节所述室外风机的转速。
  8. 如权利要求7所述的多联机的控制方法，其中，所述根据所述目标换热温度调节所述室外风机的转速的步骤包括：
    获取压缩机的排气饱和温度，所述排气饱和温度为所述压缩机的排气压力对应的饱和温度；
    在所述排气饱和温度小于或等于所述目标换热温度，减小所述室外风机的转速；
    在所述排气饱和温度大于目标换热温度时，增大所述室外风机的转速。
  9. 如权利要求1所述的多联机的控制方法，其中，所述多联机的控制方法还包括：
    在所述比例小于预设比例时，根据处于运行状态的每一室内机的室内换热器出口温度调节所述室内机的电子膨胀阀开度。
  10. 如权利要求9所述的多联机的控制方法，其中，所述多联机的控制方法还包括：
    在根据处于运行状态的每一室内机的室内换热器出口温度调节所述室内机的电子膨胀阀开度时，获取存在湿度需求的室内机对应的当前室内湿度；
    若存在湿度需求的室内机对应的当前室内湿度小于第一湿度，控制所述存在湿度需求的室内机对应的加湿装置运行；
    在所述加湿装置运行时，若检测到存在湿度需求的室内机对应的当前室内湿度大于第二湿度，控制所述加湿装置停止运行，其中，所述第二湿度大于所述第一湿度。
  11. 一种多联机，其中，所述多联机包括：存储器、处理器及存储在所述存储器上并可在所述处理器上运行的多联机的控制程序，所述多联机的控制程序被所述处理器执行时实现如权利要求1至10中任一项所述的多联机的控制方法的步骤。
  12. 一种计算机存储介质，其中，所述计算机存储介质上存储有多联机的控制程序，所述多联机的控制程序被处理器执行时实现如权利要求1至10中任一项所述的多联机的控制方法的步骤。
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