EP1944558A1 - Klimaanlage und Steuerverfahren dafür - Google Patents

Klimaanlage und Steuerverfahren dafür Download PDF

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Publication number
EP1944558A1
EP1944558A1 EP07108450A EP07108450A EP1944558A1 EP 1944558 A1 EP1944558 A1 EP 1944558A1 EP 07108450 A EP07108450 A EP 07108450A EP 07108450 A EP07108450 A EP 07108450A EP 1944558 A1 EP1944558 A1 EP 1944558A1
Authority
EP
European Patent Office
Prior art keywords
power consumption
air conditioner
schedule
amount
time
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Withdrawn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
EP07108450A
Other languages
English (en)
French (fr)
Inventor
Ji Young Kim
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.)
Samsung Electronics Co Ltd
Original Assignee
Samsung Electronics Co Ltd
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 Samsung Electronics Co Ltd filed Critical Samsung Electronics Co Ltd
Publication of EP1944558A1 publication Critical patent/EP1944558A1/de
Withdrawn legal-status Critical Current

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Classifications

    • 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
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
    • F24F11/46—Improving electric energy efficiency or saving
    • F24F11/47—Responding to energy costs
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/50—Control or safety arrangements characterised by user interfaces or communication
    • F24F11/52—Indication arrangements, e.g. displays
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/50—Control or safety arrangements characterised by user interfaces or communication
    • F24F11/54—Control or safety arrangements characterised by user interfaces or communication using one central controller connected to several sub-controllers
    • 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
    • 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
    • F24F11/50—Control or safety arrangements characterised by user interfaces or communication
    • F24F11/61—Control or safety arrangements characterised by user interfaces or communication using timers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2140/00—Control inputs relating to system states
    • F24F2140/60—Energy consumption
    • 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

Definitions

  • the present invention relates to an air conditioner and a method for controlling the same, and more particularly to an air conditioner and a method for controlling the same, capable of maintaining an amount of power consumption of the air conditioner to a level less than an amount of allowable maximum power consumption in a multi-type air conditioner including a plurality of indoor units.
  • an air conditioner is used for cooling or heating a room.
  • the air conditioner performs the coding/heating operation by circulating liquid-phase refrigerant between an indoor unit and an outdoor unit to absorb ambient heat when the refrigerant is evaporated and emit heat when the refrigerant is liquefied.
  • a typical air conditioner has one outdoor unit and one indoor unit.
  • needs of a user increase for a multi system air conditioner that performs the cooling or heating operation in places in which a plurality of separated spaces exist, such as a school, a company, or a hospital, by connecting a plurality of indoor units having various shapes and capacities to one or more outdoor units.
  • the multi-type air conditioner includes a peak power control unit in order to manage power such that an amount of power consumption of the air conditioner does not exceed the maximum power consumption, which is established by the contract with an electric supply company, for a predetermined period of time (e.g., 15 minutes) in a peak time causing the great amount of power consumption.
  • a peak power control unit in order to manage power such that an amount of power consumption of the air conditioner does not exceed the maximum power consumption, which is established by the contract with an electric supply company, for a predetermined period of time (e.g., 15 minutes) in a peak time causing the great amount of power consumption.
  • a power consumption measurement unit detects instantaneous power and analyzes the detected power data so that the peak power control unit of the conventional multi-type air conditioner determines whether the amount of power consumption for 15 minutes exceeds the maximum power consumption. If it is expected from the determination result that the amount of power consumption for 15 minutes exceeds the maximum power consumption, the peak power control unit sequentially stops the operation of indoor units to be controlled among a plurality indoor units, or operates the indoor units in a low-power operation mode, thereby preventing the total amount of power consumption of the air conditioner for 15 minutes from exceeding the maximum power consumption.
  • the peak power control unit since the peak power control unit must be additionally provided, manufacturing costs may increase.
  • the maximum power consumption may be exceeded only through the operation of the indoor units excluded from the control.
  • the multi-type air conditioner which is generally operated for a predetermined period of time according to operational schedule preset by the user, that is, the user does not individually control the indoor unit whenever using the multi-type air conditioner
  • the schedule function for the indoor units to be controlled may be disregarded. For this reason, the heating/cooling operation may not be properly performed in a space having such indoor units.
  • an object of the present invention is to provide an air conditioner and a method for controlling the same, capable of maintaining an amount of power consumption of the air conditioner to a level less than maximum power consumption without additionally employing a conventional peak-power control unit in the air conditioner having a plurality of indoor units and being operated through a schedule function.
  • Another object of the present invention is to provide an air conditioner and a method for controlling the same, capable of preventing an operational schedule preset by a user from being unnecessarily restricted in order to maintain the amount of power consumption to a level less than maximum power consumption.
  • an air conditioner including a plurality of indoor units, an input module for inputting a schedule, which is an operational condition for the indoor units according to time, and a controller for previously calculating an amount of power consumption of the air conditioner based on the input schedule and comparing the amount of power consumption with allowable maximum power consumption to control an operation of the air conditioner according to the comparison result.
  • At least one schedule is inputted into the input module, and the schedule includes a number, an operating time, an operating mode, and a fan speed of the indoor unit.
  • the operating mode includes a cooling mode, a heating mode, and a wind blowing mode, and the fan speed includes a high speed, a mid speed, and a low speed.
  • the controller divides a day into a plurality of time zones, and calculates an amount of power consumption according to the time zones.
  • the air conditioner further includes a storage module for storing power consumption of each indoor unit according to the operating mode and the fan speed, wherein the controller searches the storage module to detect power consumption of the indoor unit corresponding to the input schedule and calculates an amount of power consumption by using the power consumption and the operation time of the indoor unit.
  • the controller operates the air conditioner according to the input schedule if there is no time zone representing the amount of the power consumption exceeding maximum power consumption.
  • the air conditioner includes a display module for allowing a user to reset the schedule, wherein the controller controls the display module to allow the user to reset the schedule without operating the air conditioner if there is a time zone representing the amount of power consumption exceeding the maximum power consumption.
  • a method for controlling an air conditioner including a plurality of indoor units, the method comprising the steps of (1) previously calculating an amount of power consumption of the air conditioner based on a schedule, which is an operational condition for the indoor units according to time, if the schedule is input, and (2) comparing the amount of power consumption with allowable maximum power consumption, thereby controlling an operation of the air conditioner according to the comparison result.
  • At least one schedule is input in step (1), and the schedule includes a number, an operating time, an operating mode, and a fan speed of the indoor unit.
  • the operating mode includes a cooling mode, a heating mode, and a wind blowing mode, and the fan speed includes a high speed, a mid speed, and a low speed.
  • a day is divided into a plurality of time zones in step (1), and an amount of power consumption is calculated according to the time zones.
  • the air conditioner includes a storage module for storing power consumption of the indoor unit according to the operating mode and the fan speed, power consumption of the indoor unit corresponding to the schedule input in step (1) is searched from the storage module, and an amount of power consumption is calculated by using the power consumption and the operation time of the indoor unit.
  • step (2) the air conditioner is operated according to the input schedule if there is no time zone representing the amount of power consumption exceeding allowable maximum power consumption and a message for resetting the schedule is displayed without operating the air conditioner if there is a time zone representing the amount of the power consumption exceeding the maximum power consumption.
  • FIG. 1 is a block diagram showing the structure of an air conditioner according to one embodiment of the present invention.
  • the air conditioner shown in FIG. 1 includes one outdoor unit 20 connected to an external power supply 10 and four indoor units 30a, 30b, 30c, and 30d connected to the outdoor unit 20, and the indoor units 30a, 30b, 30c, and 30d may have the same capacity or different capacities if necessary.
  • one outdoor unit 20 is provided as an example to realize the air conditioner according to the present embodiment
  • a plurality of outdoor units may be provided.
  • the number of indoor units may be the same as or differ from the number of the indoor units 30a, 30c, 30c, and 30d according to the present embodiment.
  • the air conditioner shown in FIG. 1 has a schedule function of operating the indoor units 30a, 30b, 30c, and 30d according to the operating conditioners.
  • the indoor units 30a, 30b, 30c, and 30d have different capacities, the indoor units 30a, 30b, 30c, and 30d consume different amounts of power under the same operational condition.
  • FIG. 2 is a block diagram showing the structure for controlling the operation of the air conditioner according to the present invention.
  • a controller 100 delivers a control signal to an outdoor unit driving module 150 and an indoor unit driving module 160 in order to operate the air conditioner according to the input schedule using a timer 115 for measuring time.
  • the outdoor unit driving module 150 and the indoor unit driving module 160 drive the outdoor unit 20 and the indoor units 30a, 30b, 30c, and 30d according to the control signal.
  • the controller 100 allows a schedule managing module 120 accommodated therein to make a daily control list according to time zones based on the input schedule information before the operation of the air conditioner and then to calculate the total amount of power consumption of the air conditioner according to time zones by using information previously stored in a memory 130.
  • the schedule information includes information regarding the operational conditions of the indoor units 30a, 30b, 30c, and 30d according to time zones, and an example thereof is shown in FIG. 3 .
  • a plurality of different-named schedules may be input according to the number of groups of the indoor units 30a, 30b, 30c, and 30d operating under the same condition, and the information regarding the operational conditions belonging to the schedules may be variously classified if necessary.
  • the information includes a valid period, a sequence number of an indoor unit, the operating time, the operating mode, a preset temperature, and a fan speed of the indoor unit corresponding to the schedule.
  • the operating time means a period of time during which each indoor unit is turned on/off, and the operating mode corresponds to one of a cooling mode, a heating mode, and a wind blowing mode.
  • the fan speed includes one of high, mid, and low speeds.
  • FIG. 3 shows a case in which the first and second indoor units 30a and 30b are operated through the first schedule, and the third and fourth indoor units 30c and 30d are operated through the second schedule.
  • FIG. 3 shows that the schedules are set such that the indoor units 30a, 30b, 30c, and 30d are operated through the first and second schedules to August 25, 2006 from July 26, 2006.
  • the schedules are preset such that the first and second indoor units 30a and 30b are operated at the high speed in the cooling mode for one hour between 13:00 and 14:00, and the third and fourth indoor units 30c and 30d are operated at a low speed in a cooling mode for nine hours between 09:00 and 18:00.
  • the daily control list made by the schedule managing module 120 based on the first and second schedules is representatively shown in FIG. 4 .
  • the time interval can be reduced or increased, if necessary.
  • the operating time of an indoor unit having the shortest operating time from among the indoor units is set as the time interval in order to easily calculate power consumption.
  • the daily control list is identically employed every day during a predetermined period of time of employing the first and second schedules.
  • the list of indoor units to be controlled shows indoor units operated in each time zone according to the first and second schedules. All indoor units 30a, 30b, 30c, and 30d are operated between 13:00 and 14:00, and the third and fourth indoor units 30c and 30d are operated in remaining time zones except for the time zone between 13:00 and 14:00.
  • the schedule managing module 120 calculates power consumption according to time zones by using information stored in the memory 130, and the memory 130 stores information regarding power consumption according the operating modes and the fan speeds of the indoor units 30a, 30b, 30c, and 30d.
  • the information stored in the memory 130 represents experimental values.
  • the power consumption of the indoor units 30a, 30b, 30c, and 30d according to the operating mode and the fan speed is shown following tables 1 and 2.
  • the unit of the power consumption is used as "watt (W)".
  • Table 1- power consumption in first and third indoor units High speed Mid speed Low speed Cooling mode 100 80 60 Heating mode 150 130 110 Wind blowing mode 50 40
  • Table 2- power consumption in second and fourth indoor units High speed Mid speed Low speed Cooling mode 120 100 80 Heating mode 200 170 140 Wind blowing mode 80 60 40
  • the power consumption of the air conditioner must be less than 200W such that the air conditioner can maintain the amount of the power consumption to a level less than the maximum power consumption.
  • the amount of power consumption of the air conditioner may be maintained to a level less than the maximum power consumption in the remaining time zones, the amount 324kWh of power consumption for 15 minutes may exceed the maximum power consumption in the time zone between 13:00 and 14:00.
  • the schedule managing module 120 indicates that schedule resetting is required in the time zone between 13:00 and 14:00 of the daily control list.
  • the controller 100 delivers a control signal to the display module 140 such that the display module 140 displays a message to allow a user to recognize the schedule resetting.
  • FIG. 5 is a flowchart showing a control procedure of the air conditioner according to one embodiment of the present invention.
  • the schedule managing module 120 of the controller 100 makes the daily control list according to time zones based on the input schedule as described above (step S220).
  • step S220 the controller 100 determines whether the amount of power consumption in each time zone is less than the maximum power consumption (step S230). If the amount of the power consumption in each time zone is less than the maximum power consumption, the air conditioner is operated according to the input schedule (step S240).
  • step S230 the controller 100 does not operate the air conditioner, but controls the display module 140 to display that schedule resetting is required with respect to a corresponding time zone (step S250). Accordingly, if the user resets schedule through the input module 110, the controller 100 performs step S220 (step S260).
  • the air conditioner according to the present invention determines whether the maximum power consumption is exceeded according to time zones. If a time zone of exceeding the maximum power consumption exists, the air conditioner is not operated, but schedule resetting is required. Accordingly, the operation of the air conditioner is previously prevented even when the user makes a schedule by mistake such that the amount of power consumption is exceeded in a specific time zone.
  • the air conditioner according to the present invention can operate under the maximum power consumption without additionally employing a peak power control unit.
  • the operational schedule of the air conditioner can be variously preset by the user, without being restricted to reduce the amount of power consumption.
  • the amount of power consumption is calculated according to time zones based on input schedule information, and the calculated amount of power consumption is compared with the maximum power consumption. If a time zone exists in which the calculated amount of power consumption excesses the maximum power consumption, the air conditioner does not operate, but require the input of schedule information so as to operate under the maximum power consumption without additionally employing a peak power control unit.
  • the operational schedule of the air conditioner can be variously preset by the user, without being restricted to reduce the amount of power consumption.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Human Computer Interaction (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Fuzzy Systems (AREA)
  • Mathematical Physics (AREA)
  • Air Conditioning Control Device (AREA)
EP07108450A 2007-01-02 2007-05-18 Klimaanlage und Steuerverfahren dafür Withdrawn EP1944558A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020070000155A KR20080063581A (ko) 2007-01-02 2007-01-02 공기조화기 및 그 제어방법

Publications (1)

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EP1944558A1 true EP1944558A1 (de) 2008-07-16

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EP07108450A Withdrawn EP1944558A1 (de) 2007-01-02 2007-05-18 Klimaanlage und Steuerverfahren dafür

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EP (1) EP1944558A1 (de)
JP (1) JP2008164274A (de)
KR (1) KR20080063581A (de)
CN (1) CN101216206A (de)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2166294A3 (de) * 2008-09-17 2011-04-27 Mitsubishi Electric Corporation Klimaanlage
EP2333442A3 (de) * 2009-11-27 2013-12-04 Mitsubishi Electric Corporation Klimagerät Steuereinrichtung
AU2014259560B2 (en) * 2010-08-17 2016-05-19 Lennox Industries Inc. Peak load optimization using communicating HVAC systems
EP2420750A3 (de) * 2010-08-17 2017-07-19 Lennox Industries Inc. Spitzenlastoptimierung unter Verwendung kommunizierender HVAC-Systeme
EP2660528A3 (de) * 2012-04-19 2018-03-21 LG Electronics Inc. Klimaanlage und Steuerverfahren dafür
CN111664558A (zh) * 2020-05-25 2020-09-15 海信（山东）空调有限公司 一种空调器及其控制方法
US20230221028A1 (en) * 2022-01-13 2023-07-13 Lennox Industries Inc. Automatic staging of multiple hvac systems during a peak demand response

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Publication number Priority date Publication date Assignee Title
CN102679493B (zh) * 2012-04-28 2013-07-24 华南理工大学 基于日程表的教学楼中央空调末端设备管理方法及***
CN103206767B (zh) * 2012-07-09 2014-09-03 广东美的制冷设备有限公司 变频空调器的节能控制方法及装置

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JP2004257276A (ja) * 2003-02-25 2004-09-16 Osaka Gas Co Ltd コージェネレーションシステム
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Publication number Priority date Publication date Assignee Title
US4217646A (en) * 1978-12-21 1980-08-12 The Singer Company Automatic control system for a building
JP2000121126A (ja) * 1998-10-21 2000-04-28 Toshiba Corp ビル監視制御装置
EP1429082A2 (de) * 2002-12-10 2004-06-16 Lg Electronics Inc. Zentrales Regelungssystem und Verfahren zur Steuerung der Klimaanlagen
US20050097905A1 (en) * 2003-06-11 2005-05-12 Lg Electronics Inc., Central control system of air conditioners and method for operating the same
US20050005621A1 (en) * 2003-07-10 2005-01-13 Jayadev Tumkur S. Strategic-response control system for regulating air conditioners for economic operation
US20050097902A1 (en) * 2003-11-11 2005-05-12 Lg Electronics Inc. Central control system of air conditioners and method for operating the same
US20060065750A1 (en) * 2004-05-21 2006-03-30 Fairless Keith W Measurement, scheduling and reporting system for energy consuming equipment

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2166294A3 (de) * 2008-09-17 2011-04-27 Mitsubishi Electric Corporation Klimaanlage
US8424322B2 (en) 2008-09-17 2013-04-23 Mitsubishi Electric Corporation Air conditioner with estimation of energy efficiency, energy charge efficiency and CO2 emission efficiency
EP2333442A3 (de) * 2009-11-27 2013-12-04 Mitsubishi Electric Corporation Klimagerät Steuereinrichtung
AU2014259560B2 (en) * 2010-08-17 2016-05-19 Lennox Industries Inc. Peak load optimization using communicating HVAC systems
EP2420750A3 (de) * 2010-08-17 2017-07-19 Lennox Industries Inc. Spitzenlastoptimierung unter Verwendung kommunizierender HVAC-Systeme
EP2660528A3 (de) * 2012-04-19 2018-03-21 LG Electronics Inc. Klimaanlage und Steuerverfahren dafür
CN111664558A (zh) * 2020-05-25 2020-09-15 海信（山东）空调有限公司 一种空调器及其控制方法
US20230221028A1 (en) * 2022-01-13 2023-07-13 Lennox Industries Inc. Automatic staging of multiple hvac systems during a peak demand response
US11802703B2 (en) * 2022-01-13 2023-10-31 Lennox Industries Inc. Automatic staging of multiple HVAC systems during a peak demand response

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Publication number Publication date
JP2008164274A (ja) 2008-07-17
CN101216206A (zh) 2008-07-09
KR20080063581A (ko) 2008-07-07

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