WO2019179177A1 - 空调控制方法和装置、空调 - Google Patents

空调控制方法和装置、空调 Download PDF

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Publication number
WO2019179177A1
WO2019179177A1 PCT/CN2018/120559 CN2018120559W WO2019179177A1 WO 2019179177 A1 WO2019179177 A1 WO 2019179177A1 CN 2018120559 W CN2018120559 W CN 2018120559W WO 2019179177 A1 WO2019179177 A1 WO 2019179177A1
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WIPO (PCT)
Prior art keywords
target
unit
temperature
compressor
chilled water
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2018/120559
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English (en)
French (fr)
Inventor
张治平
龙忠铿
罗炽亮
张丙
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Gree Electric Appliances Inc of Zhuhai
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Gree Electric Appliances Inc of Zhuhai
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Application filed by Gree Electric Appliances Inc of Zhuhai filed Critical Gree Electric Appliances Inc of Zhuhai
Priority to US16/962,557 priority Critical patent/US11187448B2/en
Priority to EP18910469.8A priority patent/EP3708930B1/en
Publication of WO2019179177A1 publication Critical patent/WO2019179177A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • 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
    • 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
    • F25B49/022—Compressor control arrangements
    • 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
    • F25B39/00—Evaporators; 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
    • 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
    • F25B49/027—Condenser control arrangements
    • 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
    • F25B2600/024—Compressor control by controlling the electric parameters, e.g. current or voltage
    • 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
    • F25B2600/0253—Compressor control by controlling speed with variable 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
    • F25B2600/02—Compressor control
    • F25B2600/027—Compressor control by controlling pressure
    • 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
    • F25B2600/17—Control issues by controlling the pressure of the condenser
    • 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
    • F25B2700/15—Power, e.g. by voltage or current
    • F25B2700/151—Power, e.g. by voltage or current of the compressor motor
    • 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
    • F25B2700/19—Pressures
    • F25B2700/193—Pressures of the compressor
    • 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
    • F25B2700/19—Pressures
    • F25B2700/195—Pressures of the condenser
    • 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
    • F25B2700/19—Pressures
    • F25B2700/197—Pressures of the evaporator
    • 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
    • F25B2700/21—Temperatures
    • 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
    • F25B2700/21—Temperatures
    • F25B2700/2116—Temperatures of a condenser
    • F25B2700/21161—Temperatures of a condenser of the fluid heated by the condenser
    • 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
    • F25B2700/21—Temperatures
    • F25B2700/2117—Temperatures of an evaporator
    • F25B2700/21171—Temperatures of an evaporator of the fluid cooled by the evaporator
    • 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 disclosure relates to the field of air conditioning, and in particular, to an air conditioning control method and apparatus, and an air conditioner.
  • an air conditioning control method comprising: collecting a current chilled water temperature of a unit at a predetermined cycle; according to a chilled water temperature set by a user and the current chilled water temperature, Determining the target load of the unit, the target temperature of the chilled water and the target temperature of the cooling water; determining the evaporation parameter and the condensation parameter of the unit by using the unit target load, the chilled water target temperature and the cooling water target temperature; according to the unit target load, Evaporation parameters and condensation parameters determine operating parameters of the compressor so that the unit operates in accordance with the operating parameters.
  • determining the unit target load, the chilled water target temperature, and the cooling water target temperature according to the user-set chilled water temperature and the current chilled water temperature comprises: calculating the current chilled water temperature and the user setting The difference of the chilled water temperature is determined; the corresponding unit target load is determined according to the difference; and the corresponding chilled water target temperature and the cooling water target temperature are determined according to the unit target load.
  • the method further includes: calculating a temperature difference between the current chilled water temperature and the chilled water temperature of the unit collected in the previous period; determining whether the temperature difference is greater than the a difference; if the temperature difference is greater than the difference, the unit target load is decreased by a predetermined amplitude; and the corresponding chilled water target temperature and the cooling water target temperature are determined according to the reduced unit target load.
  • the unit target load is increased by a predetermined amplitude; and the corresponding chilled water target temperature and cooling are determined according to the increased unit target load. Water target temperature.
  • the unit target load includes an evaporator load and a condenser load; the unit's evaporation parameter includes an evaporation target pressure, and the unit's condensation parameter includes a condensation target pressure.
  • determining the evaporation parameter and the condensation parameter of the unit by using the unit target load, the chilled water target temperature, and the cooling water target temperature comprises: determining evaporation according to the evaporator load and the chilled water target temperature Target pressure; determining a condensation target pressure based on the condenser load and the cooling water target temperature.
  • determining the operating parameters of the compressor based on the unit target load, the evaporation parameter, and the condensation parameter comprises: obtaining the compression based on the unit target load, the evaporation target pressure, and a condensation target pressure Operating frequency of the machine, so that the compressor operates at the operating frequency; obtaining an external pressure ratio of the compressor according to the evaporation target pressure and the condensation target pressure; adjusting a current internal pressure ratio of the compressor so as to The current internal pressure ratio of the compressor coincides with the external pressure ratio of the compressor.
  • after adjusting the current internal pressure ratio of the compressor further comprising: detecting a current power of the compressor as a first power; and performing a current internal pressure ratio of the compressor to a predetermined amplitude Reducing, and detecting a current power of the compressor as a second power; increasing a current internal pressure ratio of the compressor by a predetermined amplitude, and detecting a current power of the compressor as a third power; A minimum of the first power, the second power, and the third power is used as an operating power of the compressor.
  • an air conditioning control apparatus comprising: an acquisition module configured to acquire a current chilled water temperature of a unit at a predetermined cycle; a first parameter determination module configured to Determining a unit target load, a chilled water target temperature, and a cooling water target temperature according to a chilled water temperature set by a user and the current chilled water temperature; and a second parameter determining module configured to utilize the unit target load and the chilled water target Temperature and cooling water target temperature, determining the evaporation parameter and the condensation parameter of the unit; the parameter optimization module is configured to determine the operating parameter of the compressor according to the target load of the unit, the evaporation parameter and the condensation parameter, so that the unit is based on The operating parameters are working.
  • the first parameter determination module is configured to calculate a difference between the current chilled water temperature and the user-set chilled water temperature, and determine a corresponding unit target load based on the difference, according to the The unit target load determines the corresponding chilled water target temperature and the cooling water target temperature.
  • the first parameter determination module is further configured to calculate a temperature difference between the current chilled water temperature and the chilled water temperature of the unit collected during the previous week after determining the corresponding unit target load, and determine Whether the temperature difference is greater than the difference, if the temperature difference is greater than the difference, reducing the target load of the unit by a predetermined amplitude, and determining a corresponding target temperature of the chilled water according to the reduced target load of the unit And the target temperature of the cooling water.
  • the first parameter determination module is further configured to increase the unit target load by a predetermined amplitude if the temperature difference is less than the difference, and determine according to the increased unit target load. Corresponding chilled water target temperature and cooling water target temperature.
  • the unit target load includes an evaporator load and a condenser load; the unit's evaporation parameter includes an evaporation target pressure, and the unit's condensation parameter includes a condensation target pressure.
  • the second parameter determination module is configured to determine an evaporation target pressure based on the evaporator load and the chilled water target temperature, and determine a condensation target based on the condenser load and the cooling water target temperature pressure.
  • the parameter optimization module is configured to derive an operating frequency of the compressor based on the unit target load, the evaporation target pressure, and a condensing target pressure, such that the compressor operates at the operating frequency, Obtaining an external pressure ratio of the compressor according to the evaporation target pressure and the condensation target pressure, adjusting a current internal pressure ratio of the compressor so that a current internal pressure ratio of the compressor is consistent with an external pressure ratio of the compressor .
  • the parameter optimization module is further configured to detect a current power of the compressor as a first power and a current internal pressure ratio of the compressor after adjusting a current internal pressure ratio of the compressor Decreasing by a predetermined amplitude, and detecting the current power of the compressor as the second power, increasing the current internal pressure ratio of the compressor by a predetermined amplitude, and detecting the current power of the compressor as the first For three powers, a minimum of the first power, the second power, and the third power is used as the operating power of the compressor.
  • an air conditioning control apparatus comprising: a memory configured to store an instruction; a processor coupled to the memory, the processor being configured to execute based on the stored instruction of the memory A method as directed to any of the above embodiments is implemented.
  • an air conditioner comprising: the air conditioning control device according to any of the above embodiments.
  • a computer readable storage medium stores computer instructions that, when executed by a processor, implement any of the embodiments described above method.
  • FIG. 1 is an exemplary flowchart of an air conditioning control method according to an embodiment of the present disclosure
  • FIG. 2 is an exemplary block diagram of an air conditioning control device according to an embodiment of the present disclosure
  • FIG. 3 is an exemplary block diagram of an air conditioning control device according to another embodiment of the present disclosure.
  • FIG. 4 is an exemplary block diagram of an air conditioner in accordance with an embodiment of the present disclosure.
  • the inventor has found through research that the load of the air-conditioning system varies with the seasonal climate and the number of indoor residents.
  • the cooling capacity of the air-conditioning chiller needs to be matched with it, and corresponding changes are also required. Under constant adjustment of water temperature and load conditions, there is no guarantee that the unit will operate at the optimum point.
  • the present disclosure provides a solution capable of ensuring that an air conditioner chiller can operate at an optimum state.
  • FIG. 1 is an exemplary flowchart of an air conditioning control method according to an embodiment of the present disclosure.
  • the method steps of the present embodiment can be performed by an air conditioning control device.
  • step 101 the current chilled water temperature of the unit is collected at a predetermined cycle.
  • Step 102 Determine a target load of the unit, a target temperature of the chilled water, and a target temperature of the cooling water according to the chilled water temperature set by the user and the current chilled water temperature.
  • the above step 102 can determine the corresponding unit target load based on the difference ⁇ T by calculating the difference ⁇ T between the current chilled water temperature and the user-set chilled water temperature, and determining the corresponding freezing according to the unit target load. Water target temperature and cooling water target temperature.
  • the difference between the current chilled water temperature and the user-set chilled water temperature and the unit target load, and the unit target load and the chilled water target temperature and the cooling water target temperature may be obtained by experiments in advance. Therefore, the unit target load, the chilled water target temperature and the cooling water target temperature are determined by means of table lookup.
  • the unit target load includes an evaporator load and a condenser load.
  • step 103 the unit's target load, the chilled water target temperature, and the cooling water target temperature are used to determine the unit's evaporation parameters and condensation parameters.
  • the unit's evaporation parameters include the evaporation target pressure and the unit's condensation parameters include the condensation target pressure.
  • Step 104 Determine operating parameters of the compressor according to the target load, evaporation parameters and condensation parameters of the unit, so that the unit can work according to the operating parameters.
  • the temperature difference between the current chilled water temperature and the chilled water temperature of the unit collected in the previous period may be further calculated, and whether the temperature difference is determined Greater than the difference ⁇ T. If the temperature difference is greater than the difference ⁇ T, the target load of the unit is reduced by a predetermined amplitude, and the corresponding target temperature of the chilled water and the target temperature of the cooling water are determined according to the reduced target load of the unit.
  • the target load of the unit is increased by a predetermined amplitude, and the corresponding target temperature of the chilled water and the target temperature of the cooling water are determined according to the increased target load of the unit.
  • the current chilled water temperature of the collected unit is Ta
  • the chilled water temperature of the unit collected in the previous working cycle is Tb
  • the corresponding temperature difference is (Tb-Ta). If (Tb-Ta) is greater than the difference ⁇ T between the current chilled water temperature and the user-set chilled water temperature, the unit target load is adjusted from Q1 to Q2 and Q2 ⁇ Q1. If (Tb-Ta) is less than the difference ⁇ T between the current chilled water temperature and the user-set chilled water temperature, the unit target load is adjusted from Q1 to Q3 and Q3>Q1. This can effectively prevent the rate of change of the chilled water temperature from being excessive.
  • the evaporation target pressure may be determined according to the evaporator load and the chilled water target temperature.
  • the condensation target pressure is determined based on the condenser load and the target temperature of the cooling water.
  • the relationship between the evaporator load, the target temperature of the chilled water, and the target pressure of evaporation can be obtained in advance by experiments, and the relationship between the condenser load, the target temperature of the cooling water, and the condensing target pressure is obtained through experiments. Therefore, the corresponding evaporation target pressure and the condensation target pressure can be obtained by means of table lookup.
  • determining the operating parameters of the compressor according to the unit target load, the evaporation parameter, and the condensation parameter includes:
  • the operating frequency of the compressor is obtained so that the compressor operates at the operating frequency.
  • the external pressure ratio of the compressor is obtained according to the evaporation target pressure and the condensing target pressure, and the current internal pressure ratio of the compressor is adjusted so that the current internal pressure ratio of the compressor coincides with the external pressure ratio of the compressor.
  • the correlation between the evaporator load, the condenser load, the evaporation parameter, and the condensation parameter and the operating frequency of the compressor can be obtained by experiments in advance. Therefore, the corresponding operating frequency of the compressor can be obtained by means of look-up table according to the evaporator load, the condenser load, the evaporation parameter and the condensation parameter.
  • the external pressure ratio of the compressor can be first obtained by using the evaporation target pressure and the condensation target pressure, and then the current internal pressure ratio of the compressor can be adjusted so that the current internal pressure ratio of the compressor coincides with the external pressure ratio of the compressor. Thereby achieving a coarse adjustment of the internal pressure ratio.
  • the power of the compressor at this time is W1, that is, the first power
  • the internal pressure ratio is V1.
  • the adjacent internal pressure ratio V2 is obtained, and the compressor power at this time is W2, that is, the second power.
  • the internal pressure ratio is lowered by one step from V1 to obtain an adjacent internal pressure ratio V3, and the compressor power at this time is W3, that is, the third power.
  • the smallest power value is taken as the operating power of the compressor. Thereby, fine adjustment of the internal pressure ratio can be achieved.
  • the air conditioning control device includes an acquisition module 21, a first parameter determination module 22, a second parameter determination module 23, and a parameter optimization module 24.
  • the acquisition module 21 is configured to collect the current chilled water temperature of the unit at a predetermined period.
  • the first parameter determination module 22 is configured to determine the unit target load, the chilled water target temperature, and the cooling water target temperature based on the user-set chilled water temperature and the current chilled water temperature.
  • the first parameter determination module 22 is configured to calculate a difference ⁇ T between the current chilled water temperature and the user-set chilled water temperature, determine a corresponding unit target load based on the difference ⁇ T, and determine according to the unit target load.
  • the corresponding chilled water target temperature and the cooling water target temperature are output.
  • the first parameter determination module 22 is further configured to calculate a temperature difference between the current chilled water temperature and the chilled water temperature of the unit collected during the previous week after determining the corresponding unit target load, and determine whether the temperature difference is Greater than the difference ⁇ T. If the temperature difference is greater than the difference ⁇ T, the first parameter determining module 22 reduces the unit target load by a predetermined amplitude, and determines the corresponding chilled water target temperature and the cooling water target temperature according to the reduced unit target load.
  • the first parameter determination module 22 is further configured to increase the unit target load by a predetermined amplitude if the temperature difference is less than the difference ⁇ T, and determine the corresponding chilled water according to the increased unit target load.
  • Target temperature and cooling water target temperature are further configured to increase the unit target load by a predetermined amplitude if the temperature difference is less than the difference ⁇ T, and determine the corresponding chilled water according to the increased unit target load.
  • the unit target load includes an evaporator load and a condenser load.
  • the second parameter determination module 23 is configured to determine the evaporation parameters and condensation parameters of the unit using the unit target load, the chilled water target temperature, and the cooling water target temperature.
  • the unit's evaporation parameters include the evaporation target pressure and the unit's condensation parameters include the condensation target pressure.
  • the second parameter determination module 23 is configured to determine an evaporation target pressure based on the evaporator load and the chilled water target temperature, and determine a condensation target pressure based on the condenser load and the cooling water target temperature.
  • the parameter optimization module 24 is configured to determine operating parameters of the compressor based on the unit target load, evaporation parameters, and condensation parameters so that the unit can operate in accordance with the operating parameters.
  • the parameter optimization module 24 is configured to derive an operating frequency of the compressor based on the unit target load, the evaporation target pressure, and the condensing target pressure so that the compressor operates at the operating frequency, based on the evaporation target pressure and the condensing target pressure.
  • the external pressure ratio of the compressor adjusts the current internal pressure ratio of the compressor so that the current internal pressure ratio of the compressor coincides with the external pressure ratio of the compressor. Thereby achieving a coarse adjustment of the internal pressure ratio.
  • the parameter optimization module 24 is further configured to detect the current power W1 of the compressor, ie, the first power, after adjusting the current internal pressure ratio of the compressor.
  • the parameter optimization module 24 reduces the current internal pressure ratio V of the compressor by a predetermined amplitude and detects the current power W2 of the compressor, that is, the second power.
  • the parameter optimization module 24 increases the current internal pressure ratio V of the compressor by a predetermined amplitude and detects the current power W3 of the compressor, that is, the third power.
  • the parameter optimization module 24 takes the minimum of the first power W1, the second power W2, and the third power W3 as the operating power of the compressor. Thereby fine adjustment of the internal pressure ratio is achieved.
  • FIG. 3 is an exemplary block diagram of an air conditioning control apparatus according to another embodiment of the present disclosure.
  • the air conditioning control device includes a memory 31 and a processor 32. among them:
  • Memory 31 is for storing instructions
  • processor 32 is coupled to memory 31, and processor 32 is configured to perform the methods involved in any of the embodiments of FIG. 1 based on instructions stored in the memory.
  • the air conditioning control device further includes a communication interface 33 for performing information interaction with other devices.
  • the air conditioning control device further includes a bus 34, and the processor 32, the communication interface 33, and the memory 31 complete communication with each other via the bus 34.
  • the memory 31 may include a high speed RAM memory, and may also include a non-volatile memory such as at least one disk memory.
  • the memory 31 can also be a memory array.
  • the memory 31 may also be partitioned, and the blocks may be combined into a virtual volume according to certain rules.
  • processor 32 can be a central processing unit CPU, or can be an application specific integrated circuit ASIC, or one or more integrated circuits configured to implement embodiments of the present disclosure.
  • the present disclosure also relates to a computer readable storage medium, wherein the computer readable storage medium stores computer instructions that, when executed by a processor, implement the method of any of the embodiments of FIG.
  • FIG. 4 is an exemplary block diagram of an air conditioner in accordance with an embodiment of the present disclosure.
  • the air conditioner 41 is provided with an air conditioning control device 42.
  • the air conditioning control device 42 can be the air conditioning control device of any of the embodiments of FIG. 2 or FIG.
  • the functional unit modules described above may be implemented as a general purpose processor, a Programmable Logic Controller (PLC), a digital signal processor (for example) for performing the functions described in this disclosure ( Digital Signal Processor (DSP), Application Specific Integrated Circuit (ASIC), Field-Programmable Gate Array (FPGA) or other programmable logic devices, discrete gates or transistors Logic device, discrete hardware component, or any suitable combination thereof.
  • PLC Programmable Logic Controller
  • DSP Digital Signal Processor
  • ASIC Application Specific Integrated Circuit
  • FPGA Field-Programmable Gate Array
  • all components of the air conditioning unit can be operated in an optimal operating state, thereby ensuring high reliability operation of the air conditioning unit.
  • a person skilled in the art may understand that all or part of the steps of implementing the above embodiments may be completed by hardware, or may be instructed by a program to execute related hardware, and the program may be stored in a computer readable storage medium.
  • the storage medium mentioned may be a read only memory, a magnetic disk or an optical disk or the like.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Air Conditioning Control Device (AREA)

Abstract

提供一种空调控制方法和装置、空调。空调控制装置以预定周期采集机组的当前冷冻水温度，根据用户设定的冷冻水温度和当前冷冻水温度，确定机组目标负荷、冷冻水目标温度及冷却水目标温度，利用机组目标负荷、冷冻水目标温度及冷却水目标温度，确定机组的蒸发参数和冷凝参数，根据机组目标负荷、蒸发参数和冷凝参数，确定压缩机的运行参数，以便机组根据运行参数进行工作。

Description

空调控制方法和装置、空调
相关申请的交叉引用
本申请是以CN申请号为201810230354.3，申请日为2018年3月20日的申请为基础，并主张其优先权，该CN申请的公开内容在此作为整体引入本申请中。
技术领域
本公开涉及空调领域，特别涉及一种空调控制方法和装置、空调。
背景技术
随着我国国民经济的快速发展，我国对能源的需求量日益增加，能源紧缺的问题越来越突出。在许多建筑中，中央空调系统的能耗占据建筑总能耗的大半部分。
发明内容
根据本公开的一个或多个实施例的一个方面，提供一种空调控制方法，包括：以预定周期采集机组的当前冷冻水温度；根据用户设定的冷冻水温度和所述当前冷冻水温度，确定机组目标负荷、冷冻水目标温度及冷却水目标温度；利用所述机组目标负荷、冷冻水目标温度及冷却水目标温度，确定机组的蒸发参数和冷凝参数；根据所述机组目标负荷、所述蒸发参数和冷凝参数，确定压缩机的运行参数，以便所述机组根据所述运行参数进行工作。
在一些实施例中，根据用户设定的冷冻水温度和所述当前冷冻水温度，确定机组目标负荷、冷冻水目标温度及冷却水目标温度包括：计算所述当前冷冻水温度和所述用户设定的冷冻水温度的差值；根据所述差值确定出相应的机组目标负荷；根据所述机组目标负荷确定出相应的冷冻水目标温度及冷却水目标温度。
在一些实施例中，在确定出相应的机组目标负荷后，还包括：计算所述当前冷冻水温度与前一周期内所采集的机组的冷冻水温度的温差；判断所述温差是否大于所述差值；在所述温差大于所述差值的情况下，以预定幅度减小所述机组目标负荷；根据减小后的机组目标负荷，确定出相应的冷冻水目标温度及冷却水目标温度。
在一些实施例中，在所述温差小于所述差值的情况下，则以预定幅度增大所述机组目标负荷；根据增大后的机组目标负荷，确定出相应的冷冻水目标温度及冷却水目 标温度。
在一些实施例中，所述机组目标负荷包括蒸发器负荷和冷凝器负荷；所述机组的蒸发参数包括蒸发目标压力，所述机组的冷凝参数包括冷凝目标压力。
在一些实施例中，利用所述机组目标负荷、冷冻水目标温度及冷却水目标温度，确定机组的蒸发参数和冷凝参数包括：根据所述蒸发器负荷和所述冷冻水目标温度，确定出蒸发目标压力；根据所述冷凝器负荷和所述冷却水目标温度，确定出冷凝目标压力。
在一些实施例中，根据所述机组目标负荷、所述蒸发参数和冷凝参数，确定压缩机的运行参数包括：根据所述机组目标负荷、所述蒸发目标压力和冷凝目标压力，得到所述压缩机的运行频率，以便所述压缩机以所述运行频率进行工作；根据所述蒸发目标压力和冷凝目标压力得到压缩机的外压比；调节所述压缩机的当前内压比，以便使所述压缩机的当前内压比与所述压缩机的外压比一致。
在一些实施例中，在调节所述压缩机的当前内压比后，还包括：检测所述压缩机的当前功率以作为第一功率；将所述压缩机的当前内压比按预定幅度进行减小，并检测所述压缩机的当前功率以作为第二功率；将所述压缩机的当前内压比按预定幅度进行增加，并检测所述压缩机的当前功率以作为第三功率；将所述第一功率、第二功率和第三功率中的最小值作为所述压缩机的运行功率。
根据本公开的一个或多个实施例的另一个方面，提供一种空调控制装置，包括：采集模块，被配置为以预定周期采集机组的当前冷冻水温度；第一参数确定模块，被配置为根据用户设定的冷冻水温度和所述当前冷冻水温度，确定机组目标负荷、冷冻水目标温度及冷却水目标温度；第二参数确定模块，被配置为利用所述机组目标负荷、冷冻水目标温度及冷却水目标温度，确定机组的蒸发参数和冷凝参数；参数优化模块，被配置为根据所述机组目标负荷、所述蒸发参数和冷凝参数，确定压缩机的运行参数，以便所述机组根据所述运行参数进行工作。
在一些实施例中，第一参数确定模块被配置为计算所述当前冷冻水温度和所述用户设定的冷冻水温度的差值，根据所述差值确定出相应的机组目标负荷，根据所述机组目标负荷确定出相应的冷冻水目标温度及冷却水目标温度。
在一些实施例中，第一参数确定模块还被配置为在确定出相应的机组目标负荷后，计算所述当前冷冻水温度与前一周期内所采集的机组的冷冻水温度的温差，判断所述温差是否大于所述差值，在所述温差大于所述差值的情况下，以预定幅度减小所 述机组目标负荷，根据减小后的机组目标负荷，确定出相应的冷冻水目标温度及冷却水目标温度。
在一些实施例中，第一参数确定模块还被配置为在所述温差小于所述差值的情况下，以预定幅度增大所述机组目标负荷，根据增大后的机组目标负荷，确定出相应的冷冻水目标温度及冷却水目标温度。
在一些实施例中，所述机组目标负荷包括蒸发器负荷和冷凝器负荷；所述机组的蒸发参数包括蒸发目标压力，所述机组的冷凝参数包括冷凝目标压力。
在一些实施例中，第二参数确定模块被配置为根据所述蒸发器负荷和所述冷冻水目标温度确定出蒸发目标压力，根据所述冷凝器负荷和所述冷却水目标温度确定出冷凝目标压力。
在一些实施例中，参数优化模块被配置为根据所述机组目标负荷、所述蒸发目标压力和冷凝目标压力得到所述压缩机的运行频率，以便所述压缩机以所述运行频率进行工作，根据所述蒸发目标压力和冷凝目标压力得到压缩机的外压比，调节所述压缩机的当前内压比，以便使所述压缩机的当前内压比与所述压缩机的外压比一致。
在一些实施例中，参数优化模块还被配置为在调节所述压缩机的当前内压比后，检测所述压缩机的当前功率以作为第一功率，将所述压缩机的当前内压比按预定幅度进行减小，并检测所述压缩机的当前功率以作为第二功率，将所述压缩机的当前内压比按预定幅度进行增加，并检测所述压缩机的当前功率以作为第三功率，将所述第一功率、第二功率和第三功率中的最小值作为所述压缩机的运行功率。
根据本公开的一个或多个实施例的另一个方面，提供一种空调控制装置，包括：存储器，被配置为存储指令；处理器，耦合到存储器，处理器被配置为基于存储器存储的指令执行实现如上述任一实施例涉及的方法。
根据本公开的一个或多个实施例的另一个方面，提供一种空调，包括：如上述任一实施例涉及的空调控制装置。
根据本公开的一个或多个实施例的一个方面，提供一种计算机可读存储介质，其中，计算机可读存储介质存储有计算机指令，指令被处理器执行时实现如上述任一实施例涉及的方法。
通过以下参照附图对本公开的示例性实施例的详细描述，本公开的其它特征及其优点将会变得清楚。
附图说明
为了更清楚地说明本公开实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本公开的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动性的前提下，还可以根据这些附图获得其他的附图。
图1为本公开一个实施例的空调控制方法的示例性流程图；
图2为本公开一个实施例的空调控制装置的示例性框图；
图3为本公开另一个实施例的空调控制装置的示例性框图；
图4为本公开一个实施例的空调的示例性框图。
具体实施方式
下面将结合本公开实施例中的附图，对本公开实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本公开一部分实施例，而不是全部的实施例。以下对至少一个示例性实施例的描述实际上仅仅是说明性的，决不作为对本公开及其应用或使用的任何限制。基于本公开中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本公开保护的范围。
除非另外具体说明，否则在这些实施例中阐述的部件和步骤的相对布置、数字表达式和数值不限制本公开的范围。
同时，应当明白，为了便于描述，附图中所示出的各个部分的尺寸并不是按照实际的比例关系绘制的。
对于相关领域普通技术人员已知的技术、方法和设备可能不作详细讨论，但在适当情况下，所述技术、方法和设备应当被视为授权说明书的一部分。
在这里示出和讨论的所有示例中，任何具体值应被解释为仅仅是示例性的，而不是作为限制。因此，示例性实施例的其它示例可以具有不同的值。
应注意到：相似的标号和字母在下面的附图中表示类似项，因此，一旦某一项在一个附图中被定义，则在随后的附图中不需要对其进行进一步讨论。
发明人经过研究发现，空调系统的负荷随季节气候和室内居留人员数量而变化，空调用冷水机组的制冷量需要和它相匹配，也要进行相应的变化。在不断调整的水温及负荷条件下，无法保证机组能够在最佳点上运行。
为此，本公开提供一种能够保证空调冷水机组能够在最佳状态下运行的方案。
图1为本公开一个实施例的空调控制方法的示例性流程图。在一些实施例中，本实施例的方法步骤可由空调控制装置执行。
步骤101，以预定周期采集机组的当前冷冻水温度。
步骤102，根据用户设定的冷冻水温度和当前冷冻水温度，确定机组目标负荷、冷冻水目标温度及冷却水目标温度。
在一些实施例中，上述步骤102可通过计算当前冷冻水温度和用户设定的冷冻水温度的差值ΔT，根据差值ΔT确定出相应的机组目标负荷，根据机组目标负荷确定出相应的冷冻水目标温度及冷却水目标温度。
例如，可预先通过试验获得当前冷冻水温度和用户设定冷冻水温度之差与机组目标负荷、以及机组目标负荷与冷冻水目标温度及冷却水目标温度的对应关系。从而通过查表的方式确定机组目标负荷、冷冻水目标温度及冷却水目标温度。
需要说明的是，上述方式仅作为示例，并不意味着将本公开局限于此。本领域技术人员还可采用其它可实现的方式进行相应的参数确定。
在一些实施例中，机组目标负荷包括蒸发器负荷和冷凝器负荷。
步骤103，利用机组目标负荷、冷冻水目标温度及冷却水目标温度，确定机组的蒸发参数和冷凝参数。
在一些实施例中，机组的蒸发参数包括蒸发目标压力，机组的冷凝参数包括冷凝目标压力。
步骤104，根据机组目标负荷、蒸发参数和冷凝参数，确定压缩机的运行参数，以便机组根据该运行参数进行工作。
在本公开空调控制方法的上述实施例中，通过进行优化控制，从而能够使得空调机组实现高效运行，确保整个冷水系统的高可靠性运行。
在一些实施例中，在上述步骤102中，在确定出相应的机组目标负荷后，还可进一步计算当前冷冻水温度与前一周期内所采集的机组的冷冻水温度的温差，并判断温差是否大于差值ΔT。若温差大于差值ΔT，则以预定幅度减小机组目标负荷，并根据减小后的机组目标负荷，确定出相应的冷冻水目标温度及冷却水目标温度。
若温差小于差值ΔT，则以预定幅度增大机组目标负荷，并根据增大后的机组目标负荷，确定出相应的冷冻水目标温度及冷却水目标温度。
例如，在某个工作周期，采集到机组的当前冷冻水温度为Ta，而在前一个工作周期所采集到的机组冷冻水温度为Tb，从而相应的温差大小为(Tb-Ta)。若(Tb-Ta)大于 当前冷冻水温度和用户设定冷冻水温度之差ΔT，则将机组目标负荷从Q1调整为Q2，Q2<Q1。若(Tb-Ta)小于当前冷冻水温度和用户设定冷冻水温度之差ΔT，则将机组目标负荷从Q1调整为Q3，Q3>Q1。由此可有效避免冷冻水温度的变化率过大。
在一些实施例中，在上述步骤103中，可根据蒸发器负荷和冷冻水目标温度，确定出蒸发目标压力。根据冷凝器负荷和冷却水目标温度，确定出冷凝目标压力。
例如，可预先通过试验获得蒸发器负荷、冷冻水目标温度与蒸发目标压力之间的关联关系，通过试验获得冷凝器负荷、冷却水目标温度与冷凝目标压力之间的关联关系。从而通过查表的方式确定就可获得相应的蒸发目标压力和冷凝目标压力。
需要说明的是，上述方式仅作为示例，并不意味着将本公开局限于此。本领域技术人员还可采用其它可实现的方式进行相应的参数确定。
在一些实施例中，在上述步骤104中，根据机组目标负荷、蒸发参数和冷凝参数，确定压缩机的运行参数包括：
根据机组目标负荷、蒸发目标压力和冷凝目标压力，得到压缩机的运行频率，以便压缩机以运行频率进行工作。根据蒸发目标压力和冷凝目标压力得到压缩机的外压比，调节压缩机的当前内压比，以便使压缩机的当前内压比与压缩机的外压比一致。
例如，可预先通过试验，获得蒸发器负荷、冷凝器负荷、蒸发参数和冷凝参数与压缩机运行频率之间的关联关系。从而可通过查表的方式，根据蒸发器负荷、冷凝器负荷、蒸发参数和冷凝参数得到压缩机相应的运行频率。
此外，由于压缩机的内压比与外压比越接近，机组的运行效率越高。因此，可先利用蒸发目标压力和冷凝目标压力得到压缩机的外压比，再调节压缩机的当前内压比，以便使压缩机的当前内压比与压缩机的外压比一致。从而实现内压比的粗调。
还需要说明的是，由于随着转速的提升，压比会随着转速变化，因此还需要进一步通过微调内压比，以便使得压缩机以最优参数进行运行。
例如，此时压缩机的功率为W1，即第一功率，内压比为V1。通过将内压比升高一档，以得到相邻的内压比V2，此时的压缩机功率为W2，即第二功率。再将内压比从V1降低一档，以得到相邻的内压比V3，此时的压缩机功率为W3，即第三功率。通过对比第一功率W1、第二功率W2和第三功率W3，将其中最小的功率值作为压缩机的运行功率。由此，可实现对内压比的微调。
图2为本公开一个实施例的空调控制装置的示例性框图。如图2所示，空调控制装置包括采集模块21、第一参数确定模块22、第二参数确定模块23和参数优化模块 24。
采集模块21被配置为以预定周期采集机组的当前冷冻水温度。
第一参数确定模块22被配置为根据用户设定的冷冻水温度和当前冷冻水温度，确定机组目标负荷、冷冻水目标温度及冷却水目标温度。
在一些实施例中，第一参数确定模块22被配置为计算当前冷冻水温度和用户设定的冷冻水温度的差值ΔT，根据差值ΔT确定出相应的机组目标负荷，根据机组目标负荷确定出相应的冷冻水目标温度及冷却水目标温度。
在一些实施例中，第一参数确定模块22还被配置为在确定出相应的机组目标负荷后，计算当前冷冻水温度与前一周期内所采集的机组的冷冻水温度的温差，判断温差是否大于差值ΔT。若温差大于差值ΔT，则第一参数确定模块22以预定幅度减小机组目标负荷，根据减小后的机组目标负荷，确定出相应的冷冻水目标温度及冷却水目标温度。
在一些实施例中，第一参数确定模块22还被配置为在温差小于差值ΔT的情况下，以预定幅度增大机组目标负荷，根据增大后的机组目标负荷，确定出相应的冷冻水目标温度及冷却水目标温度。
在一些实施例中，机组目标负荷包括蒸发器负荷和冷凝器负荷。
第二参数确定模块23被配置为利用机组目标负荷、冷冻水目标温度及冷却水目标温度，确定机组的蒸发参数和冷凝参数。
在一些实施例中，机组的蒸发参数包括蒸发目标压力，机组的冷凝参数包括冷凝目标压力。
在一些实施例中，第二参数确定模块23被配置为根据蒸发器负荷和冷冻水目标温度确定出蒸发目标压力，根据冷凝器负荷和冷却水目标温度确定出冷凝目标压力。
参数优化模块24被配置为根据机组目标负荷、蒸发参数和冷凝参数，确定压缩机的运行参数，以便机组根据运行参数进行工作。
在一些实施例中，参数优化模块24被配置为根据机组目标负荷、蒸发目标压力和冷凝目标压力得到压缩机的运行频率，以便压缩机以运行频率进行工作，根据蒸发目标压力和冷凝目标压力得到压缩机的外压比，调节压缩机的当前内压比，以便使压缩机的当前内压比与压缩机的外压比一致。从而实现内压比的粗调。
在一些实施例中，参数优化模块24还被配置为在调节压缩机的当前内压比后，检测压缩机的当前功率W1，即第一功率。参数优化模块24将压缩机的当前内压比V 按预定幅度进行减小，并检测压缩机的当前功率W2，即第二功率。参数优化模块24将压缩机的当前内压比V按预定幅度进行增加，并检测压缩机的当前功率W3，即第三功率。参数优化模块24将第一功率W1、第二功率W2和第三功率W3中的最小值作为压缩机的运行功率。从而实现内压比的微调。
图3为本公开另一个实施例的空调控制装置的示例性框图。如图3所示，该空调控制装置包括存储器31和处理器32。其中：
存储器31用于存储指令，处理器32耦合到存储器31，处理器32被配置为基于存储器存储的指令执行实现如图1中任一实施例涉及的方法。
如图3所示，该空调控制装置还包括通信接口33，用于与其它设备进行信息交互。同时，该空调控制装置还包括总线34，处理器32、通信接口33、以及存储器31通过总线34完成相互间的通信。
存储器31可以包含高速RAM存储器，也可还包括非易失性存储器(non-volatile memory)，例如至少一个磁盘存储器。存储器31也可以是存储器阵列。存储器31还可能被分块，并且块可按一定的规则组合成虚拟卷。
此外，处理器32可以是一个中央处理器CPU，或者可以是专用集成电路ASIC，或者是被配置成实施本公开实施例的一个或多个集成电路。
本公开同时还涉及一种计算机可读存储介质，其中计算机可读存储介质存储有计算机指令，指令被处理器执行时实现如图1中任一实施例涉及的方法。
图4为本公开一个实施例的空调的示例性框图。如图4所示，空调41中设有空调控制装置42。在一些实施例中，空调控制装置42可为图2或图3中任一实施例涉及的空调控制装置。
在一些实施例中，在上面所描述的功能单元模块可以实现为用于执行本公开所描述功能的通用处理器、可编程逻辑控制器(Programmable Logic Controller，简称：PLC)、数字信号处理器(Digital Signal Processor，简称：DSP)、专用集成电路(Application Specific Integrated Circuit，简称：ASIC)、现场可编程门阵列(Field-Programmable Gate Array，简称：FPGA)或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件或者其任意适当组合。
通过实施本公开，能够使空调机组的全部部件都能运行在最佳的运行状态下，从而保证了空调机组的高可靠性运行。
本领域普通技术人员可以理解实现上述实施例的全部或部分步骤可以通过硬件 来完成，也可以通过程序来指令相关的硬件完成，所述的程序可以存储于一种计算机可读存储介质中，上述提到的存储介质可以是只读存储器，磁盘或光盘等。
本公开的描述是为了示例和描述起见而给出的，而并不是无遗漏的或者将本公开限于所公开的形式。很多修改和变化对于本领域的普通技术人员而言是显然的。选择和描述实施例是为了更好说明本公开的原理和实际应用，并且使本领域的普通技术人员能够理解本公开从而设计适于特定用途的带有各种修改的各种实施例。

Claims (19)

  1. 一种空调控制方法，包括：
    以预定周期采集机组的当前冷冻水温度；
    根据用户设定的冷冻水温度和所述当前冷冻水温度，确定机组目标负荷、冷冻水目标温度及冷却水目标温度；
    利用所述机组目标负荷、冷冻水目标温度及冷却水目标温度，确定机组的蒸发参数和冷凝参数；
    根据所述机组目标负荷、所述蒸发参数和冷凝参数，确定压缩机的运行参数，以便所述机组根据所述运行参数进行工作。
  2. 根据权利要求1所述的空调控制方法，其中，根据用户设定的冷冻水温度和所述当前冷冻水温度，确定机组目标负荷、冷冻水目标温度及冷却水目标温度包括：
    计算所述当前冷冻水温度和所述用户设定的冷冻水温度的差值；
    根据所述差值确定出相应的机组目标负荷；
    根据所述机组目标负荷确定出相应的冷冻水目标温度及冷却水目标温度。
  3. 根据权利要求2所述的空调控制方法，其中，在确定出相应的机组目标负荷后，还包括：
    计算所述当前冷冻水温度与前一周期内所采集的机组的冷冻水温度的温差；
    判断所述温差是否大于所述差值；
    在所述温差大于所述差值的情况下，以预定幅度减小所述机组目标负荷；
    根据减小后的机组目标负荷，确定出相应的冷冻水目标温度及冷却水目标温度。
  4. 根据权利要求3所述的空调控制方法，还包括，
    在所述温差小于所述差值的情况下，则以预定幅度增大所述机组目标负荷；
    根据增大后的机组目标负荷，确定出相应的冷冻水目标温度及冷却水目标温度。
  5. 根据权利要求1-4中任一项所述的空调控制方法，其中，
    所述机组目标负荷包括蒸发器负荷和冷凝器负荷；
    所述机组的蒸发参数包括蒸发目标压力，所述机组的冷凝参数包括冷凝目标压力。
  6. 根据权利要求5所述的空调控制方法，其中，
    利用所述机组目标负荷、冷冻水目标温度及冷却水目标温度，确定机组的蒸发参数和冷凝参数包括：
    根据所述蒸发器负荷和所述冷冻水目标温度，确定出蒸发目标压力；
    根据所述冷凝器负荷和所述冷却水目标温度，确定出冷凝目标压力。
  7. 根据权利要求5所述的空调控制方法，其中，根据所述机组目标负荷、所述蒸发参数和冷凝参数，确定压缩机的运行参数包括：
    根据所述机组目标负荷、所述蒸发目标压力和冷凝目标压力，得到所述压缩机的运行频率，以便所述压缩机以所述运行频率进行工作；
    根据所述蒸发目标压力和冷凝目标压力得到压缩机的外压比；
    调节所述压缩机的当前内压比，以便使所述压缩机的当前内压比与所述压缩机的外压比一致。
  8. 根据权利要求7所述的空调控制方法，其中，在调节所述压缩机的当前内压比后，还包括：
    检测所述压缩机的当前功率以作为第一功率；
    将所述压缩机的当前内压比按预定幅度进行减小，并检测所述压缩机的当前功率以作为第二功率；
    将所述压缩机的当前内压比按预定幅度进行增加，并检测所述压缩机的当前功率以作为第三功率；
    将所述第一功率、第二功率和第三功率中的最小值作为所述压缩机的运行功率。
  9. 一种空调控制装置，包括：
    采集模块，被配置为以预定周期采集机组的当前冷冻水温度；
    第一参数确定模块，被配置为根据用户设定的冷冻水温度和所述当前冷冻水温度，确定机组目标负荷、冷冻水目标温度及冷却水目标温度；
    第二参数确定模块，被配置为利用所述机组目标负荷、冷冻水目标温度及冷却水目标温度，确定机组的蒸发参数和冷凝参数；
    参数优化模块，被配置为根据所述机组目标负荷、所述蒸发参数和冷凝参数，确定压缩机的运行参数，以便所述机组根据所述运行参数进行工作。
  10. 根据权利要求9所述的空调控制装置，其中，
    第一参数确定模块被配置为计算所述当前冷冻水温度和所述用户设定的冷冻水温度的差值，根据所述差值确定出相应的机组目标负荷，根据所述机组目标负荷确定出相应的冷冻水目标温度及冷却水目标温度。
  11. 根据权利要求10所述的空调控制装置，其中，
    第一参数确定模块还被配置为在确定出相应的机组目标负荷后，计算所述当前冷冻水温度与前一周期内所采集的机组的冷冻水温度的温差，判断所述温差是否大于所述差值，在所述温差大于所述差值的情况下，以预定幅度减小所述机组目标负荷，根据减小后的机组目标负荷，确定出相应的冷冻水目标温度及冷却水目标温度。
  12. 根据权利要求11所述的空调控制装置，其中，
    第一参数确定模块还被配置为在所述温差小于所述差值的情况下，以预定幅度增大所述机组目标负荷，根据增大后的机组目标负荷，确定出相应的冷冻水目标温度及冷却水目标温度。
  13. 根据权利要求9-12中任一项所述的空调控制装置，其中，
    所述机组目标负荷包括蒸发器负荷和冷凝器负荷；
    所述机组的蒸发参数包括蒸发目标压力，所述机组的冷凝参数包括冷凝目标压力。
  14. 根据权利要求13所述的空调控制装置，其中，
    第二参数确定模块被配置为根据所述蒸发器负荷和所述冷冻水目标温度确定出蒸发目标压力，根据所述冷凝器负荷和所述冷却水目标温度确定出冷凝目标压力。
  15. 根据权利要求13所述的空调控制装置，其中，
    参数优化模块被配置为根据所述机组目标负荷、所述蒸发目标压力和冷凝目标压力得到所述压缩机的运行频率，以便所述压缩机以所述运行频率进行工作，根据所述蒸发目标压力和冷凝目标压力得到压缩机的外压比，调节所述压缩机的当前内压比，以便使所述压缩机的当前内压比与所述压缩机的外压比一致。
  16. 根据权利要求15所述的空调控制装置，其中，
    参数优化模块还被配置为在调节所述压缩机的当前内压比后，检测所述压缩机的当前功率以作为第一功率，将所述压缩机的当前内压比按预定幅度进行减小，并检测所述压缩机的当前功率以作为第二功率，将所述压缩机的当前内压比按预定幅度进行增加，并检测所述压缩机的当前功率以作为第三功率，将所述第一功率、第二功率和第三功率中的最小值作为所述压缩机的运行功率。
  17. 一种空调控制装置，包括：
    存储器，被配置为存储指令；
    处理器，耦合到存储器，处理器被配置为基于存储器存储的指令执行实现如权利要求1-8中任一项的方法。
  18. 一种空调，包括：如权利要求9-17中任一项所述的空调控制装置。
  19. 一种计算机可读存储介质，其中，计算机可读存储介质存储有计算机指令，指令被处理器执行时实现如权利要求1-8中任一项的方法。
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