EP1677058A3 - Method of controlling over-load cooling operation of air conditioner - Google Patents

Method of controlling over-load cooling operation of air conditioner Download PDF

Info

Publication number
EP1677058A3
EP1677058A3 EP05028036A EP05028036A EP1677058A3 EP 1677058 A3 EP1677058 A3 EP 1677058A3 EP 05028036 A EP05028036 A EP 05028036A EP 05028036 A EP05028036 A EP 05028036A EP 1677058 A3 EP1677058 A3 EP 1677058A3
Authority
EP
European Patent Office
Prior art keywords
air conditioner
capacity
over
load
cooling operation
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.)
Withdrawn
Application number
EP05028036A
Other languages
German (de)
French (fr)
Other versions
EP1677058A2 (en
Inventor
Won Hee Lee
Seung Youp Hyun
Jae Hoon Sim
Yoon Jei Hwang
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.)
LG Electronics Inc
Original Assignee
LG Electronics Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by LG Electronics Inc filed Critical LG Electronics Inc
Publication of EP1677058A2 publication Critical patent/EP1677058A2/en
Publication of EP1677058A3 publication Critical patent/EP1677058A3/en
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • F24F11/83—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
    • 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
    • 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
    • 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
    • F25B49/005—Arrangement or mounting of control or safety devices of 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
    • 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
    • F25B2313/00—Compression machines, plants or systems with reversible cycle not otherwise provided for
    • F25B2313/031—Sensor arrangements
    • F25B2313/0315—Temperature sensors near the outdoor heat exchanger
    • 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
    • F25B2400/00—General features or devices for refrigeration machines, plants or systems, combined heating and refrigeration systems or heat-pump systems, i.e. not limited to a particular subgroup of F25B
    • F25B2400/07—Details of compressors or related parts
    • F25B2400/075—Details of compressors or related parts with parallel compressors
    • F25B2400/0751—Details of compressors or related parts with parallel compressors the compressors having different capacities
    • 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
    • F25B2500/08—Exceeding a certain temperature value in a refrigeration component or 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
    • F25B2500/00—Problems to be solved
    • F25B2500/29—High ambient 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
    • F25B2600/00—Control issues
    • F25B2600/02—Compressor control
    • F25B2600/025—Compressor control by controlling speed
    • F25B2600/0251—Compressor control by controlling speed with on-off operation
    • 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
    • F25B2700/2106—Temperatures of fresh outdoor air
    • 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

Abstract

A method of controlling an over-load cooling operation of an air conditioner includes over-load operation mode in which, when an outdoor pipe temperature and an outdoor temperature exceeds reference temperatures, respectively, the operation capacity is changed to a low-level operation capacity, which is lower than the current operation capacity, the low-level operation capacity being one of plural operation capacities set according to the operation capacities of compressors (51, 52), and the operation is performed, and normal operation mode in which the outdoor pipe temperature is measured every predetermined period of time after the operation is performed in the over-load operation mode, and, when the measured outdoor pipe temperature is below the reference temperature, the operation is performed according to a signal from a thermostat (70). The continuous cooling operation is possible even under the over-load condition during the cooling operation of the air conditioner, and the air conditioner system is protected through the variable-capacity operation. Consequently, the present invention has the effect of improving user comfort and improving operational reliability of the air conditioner.
EP05028036A 2004-12-28 2005-12-21 Method of controlling over-load cooling operation of air conditioner Withdrawn EP1677058A3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020040113566A KR100688169B1 (en) 2004-12-28 2004-12-28 Cooling over-heating operation control method for air-conditioner

Publications (2)

Publication Number Publication Date
EP1677058A2 EP1677058A2 (en) 2006-07-05
EP1677058A3 true EP1677058A3 (en) 2012-01-11

Family

ID=36084406

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05028036A Withdrawn EP1677058A3 (en) 2004-12-28 2005-12-21 Method of controlling over-load cooling operation of air conditioner

Country Status (4)

Country Link
US (1) US20060207273A1 (en)
EP (1) EP1677058A3 (en)
KR (1) KR100688169B1 (en)
CN (1) CN1796887A (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100705223B1 (en) * 2005-10-28 2007-04-06 엘지전자 주식회사 Method for dissolving partial overload in air conditioner
KR20080074378A (en) * 2007-02-08 2008-08-13 엘지전자 주식회사 Temperature limitation method for multi-air conditioner
KR101569414B1 (en) * 2008-12-26 2015-11-16 엘지전자 주식회사 Air conditioner and operating method thereof
KR101350774B1 (en) * 2011-02-23 2014-01-14 위니아만도 주식회사 Compressor driving method
CN104566772A (en) * 2013-10-24 2015-04-29 广州南洋理工职业学院 Air conditioner refrigeration overload protection method
US9759466B2 (en) * 2014-03-05 2017-09-12 Lennox Industries Inc. Heat pump system having a maximum percent demand re-calculation algorithm controller
CN110779188A (en) * 2019-11-05 2020-02-11 中国扬子集团滁州扬子空调器有限公司 Control method for improving high-load operation performance of air conditioner refrigeration

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6191450A (en) * 1984-10-12 1986-05-09 Matsushita Electric Ind Co Ltd Overload controller of air conditioner
JPS63297783A (en) * 1987-05-29 1988-12-05 Daikin Ind Ltd Control device for overload of refrigeration device
US5231846A (en) * 1993-01-26 1993-08-03 American Standard Inc. Method of compressor staging for multi-compressor multi-circuited refrigeration systems
US5568732A (en) * 1994-04-12 1996-10-29 Kabushiki Kaisha Toshiba Air conditioning apparatus and method of controlling same
US5764011A (en) * 1995-10-23 1998-06-09 Sanyo Electric Co., Ltd. Air conditioner
US5797729A (en) * 1996-02-16 1998-08-25 Aspen Systems, Inc. Controlling multiple variable speed compressors
WO2003073025A1 (en) * 2002-02-28 2003-09-04 Kylmähertsi Oy Method for controlling refrigerating installation
US20030217557A1 (en) * 2002-05-27 2003-11-27 Lg Electronics Inc. Apparatus for preventing overload of air conditioner and method thereof
JP2004347262A (en) * 2003-05-23 2004-12-09 Daikin Ind Ltd Refrigerating plant

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3040543A (en) * 1960-12-22 1962-06-26 Gen Electric Air conditioning unit having low fan speed over-ride means
US3633073A (en) * 1969-12-05 1972-01-04 Borg Warner Overload and overcurrent regulation and protection system
JPS594613B2 (en) 1979-07-27 1984-01-31 株式会社日立製作所 How to control an air conditioner
KR100405986B1 (en) * 2001-02-26 2003-11-15 엘지전자 주식회사 Air conditioning system and method
CN100353128C (en) * 2001-06-26 2007-12-05 大金工业株式会社 Freezing device
KR100555801B1 (en) * 2002-09-06 2006-03-03 엘지전자 주식회사 Control method of airconditioner
KR100504884B1 (en) * 2003-04-14 2005-07-29 엘지전자 주식회사 Aircooling overload driving control apparatus and method for air conditioner
US20050155369A1 (en) * 2004-01-15 2005-07-21 Toshiba Carrier Corporation Air conditioner
US6966193B2 (en) * 2004-02-11 2005-11-22 Carrier Corporation Control of multi-circuit economized system
US7207183B2 (en) * 2004-04-12 2007-04-24 York International Corp. System and method for capacity control in a multiple compressor chiller system

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6191450A (en) * 1984-10-12 1986-05-09 Matsushita Electric Ind Co Ltd Overload controller of air conditioner
JPS63297783A (en) * 1987-05-29 1988-12-05 Daikin Ind Ltd Control device for overload of refrigeration device
US5231846A (en) * 1993-01-26 1993-08-03 American Standard Inc. Method of compressor staging for multi-compressor multi-circuited refrigeration systems
US5568732A (en) * 1994-04-12 1996-10-29 Kabushiki Kaisha Toshiba Air conditioning apparatus and method of controlling same
US5764011A (en) * 1995-10-23 1998-06-09 Sanyo Electric Co., Ltd. Air conditioner
US5797729A (en) * 1996-02-16 1998-08-25 Aspen Systems, Inc. Controlling multiple variable speed compressors
WO2003073025A1 (en) * 2002-02-28 2003-09-04 Kylmähertsi Oy Method for controlling refrigerating installation
US20030217557A1 (en) * 2002-05-27 2003-11-27 Lg Electronics Inc. Apparatus for preventing overload of air conditioner and method thereof
JP2004347262A (en) * 2003-05-23 2004-12-09 Daikin Ind Ltd Refrigerating plant

Also Published As

Publication number Publication date
EP1677058A2 (en) 2006-07-05
KR100688169B1 (en) 2007-03-02
KR20060075020A (en) 2006-07-04
US20060207273A1 (en) 2006-09-21
CN1796887A (en) 2006-07-05

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