EP1953473B1 - Laststeuerungssystem und Verfahren für Mehrsystem-Klimaanlagen - Google Patents
Laststeuerungssystem und Verfahren für Mehrsystem-Klimaanlagen Download PDFInfo
- Publication number
- EP1953473B1 EP1953473B1 EP08150528.1A EP08150528A EP1953473B1 EP 1953473 B1 EP1953473 B1 EP 1953473B1 EP 08150528 A EP08150528 A EP 08150528A EP 1953473 B1 EP1953473 B1 EP 1953473B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- wattage consumption
- air conditioner
- wattage
- demand control
- demand
- 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.)
- Not-in-force
Links
- 238000000034 method Methods 0.000 title claims description 14
- 238000007664 blowing Methods 0.000 claims description 11
- 239000003507 refrigerant Substances 0.000 claims description 4
- 238000001816 cooling Methods 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 238000010792 warming Methods 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
Images
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
- F24F11/30—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
- F24F11/54—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
- F24F11/30—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
-
- 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
- F24F2140/00—Control inputs relating to system states
- F24F2140/60—Energy consumption
Definitions
- the present invention relates to a demand control system and method for a multi-type air conditioner.
- a demand control regime for a multi-type air conditioner is a technique for controlling the consumption of electrical power by switching on/off an air conditioner randomly selected or selected among a plurality of air conditioners according to a pre-set cycle so as to control the operational efficiency of a multi-type air conditioner within the range of a permissible wattage (i.e., the amount of electrical power).
- the demand control regime emphasizes electrical power control rather than a user's convenience, and operates to restrict the power consumption by sequentially switching off consumption loads of the electrical power.
- the related art demand control system for a multi-type air conditioner has the following problem. That is, because the air conditioner to be provided or deprived of electrical power supply is selected without regard to the user's convenience, the user in an area where the air conditioner is forcibly controlled is located may feel substantially less comfortable.
- DE 10 2004 029331 discloses a central control system of air conditioners and a method for operating the same, wherein the central control system includes a central control unit having a database for storing information of power consumption of a multi-type air conditioning system installed in a building, and the central control unit calculates a total power consumption of air conditioners (i.e., indoor and outdoor units) currently in operation on the basis of the information stored in the database, while performing peak power control to limit the total power consumption below a reference management power value.
- air conditioners i.e., indoor and outdoor units
- JP 63 046330 discloses a heat exchanger of a heat pump type wherein a controller compares the actual power consumption which is an integrated result by an integrating wattmeter at the intermediate point of a predetermined period with an interim target value set by an electric power consumption pattern setter in the intermediate point of time.
- the present invention is directed to provide a demand control system and a demand control method for a multi-type air conditioner which is capable of enhancing a user's comfort as well as of stably maintaining an electrical power, resulting from reducing a wattage consumption by controlling an air conditioner with changing an operation mode of the air conditioner when an estimated wattage exceeds a set wattage.
- the demand control system for a multi-type air conditioner in accordance with the present invention may include a wattage consumption sensing unit 10 for calculating an estimated wattage consumed by a plurality of air conditioners 50 of a building; and a demand control unit 20 for controlling an operational efficiency of the air conditioners 50 by changing an operation mode of at least one air conditioner 50 of the plurality of air conditioners 50 when the wattage consumption sensing unit notifies the demand control unit that the estimated wattage consumption exceeds the set wattage value.
- the plurality of air conditioners 50 may each include an outdoor unit 51 and at least one indoor unit 52 connected to the outdoor unit 51.
- the wattage consumption sensing unit 10 may receive data with respect to the wattage measured from a watt-hour meter 71 by being connected with the watt-hour meter 71 connected with the plurality of air conditioners 50 so as to estimate the consumed wattage after a certain time duration. And then, the wattage consumption sensing unit 10 may sense whether the estimated wattage exceeds a pre-set demand wattage value so that the sensed information may be transferred to the demand control unit 20.
- the demand control unit 20 may be connected with the wattage consumption wattage sensing unit 10 and to each outdoor unit 51 and indoor unit 52 of the air conditioners 50 so that, when the estimated wattage exceeds the set wattage value, the operation mode of the air conditioners 50 may be sequentially changed so as to reduce the wattage consumption of the plurality of air conditioners 50.
- the demand control unit 20 may switch off the outdoor units 51 of the air conditioners so that the operation mode of the indoor unit 52 in a corresponding area may be changed into a blowing (fan only) mode for reducing the wattage consumption of the air conditioners 50.
- the demand control unit 20 may change the operation mode of the indoor units 52 into the blowing (fan only) mode by switching off the outdoor unit 51, and also into another operation mode that can reduce the power consumption by changing into a dehumidifying mode, changing a blowing amount, controlling a circulation speed of a refrigerant, or the like.
- changing the operation mode of the air conditioners 50 for reducing the wattage consumption can prevent the temperature in each area from suddenly being changed, comparing with abruptly shutting off the electrical power supply for the air conditioners 50, and accordingly a user in the area where the forcibly controlled air conditioner 50 is located may feel comfortable for a longer time. Also, the time taken until the air conditioner 50 is restored from the forcibly controlled temperature to the prior temperature is shortened, thereby preventing unnecessary energy consumption.
- the wattage consumption sensing unit 10 may sense whether the estimated wattage exceeds the pre-set wattage value by calculating the estimated wattage based on the information regarding the consumed wattage measured by the watt-hour meter 71, and then transfer the thusly sensed information to the demand control unit 20 (S1).
- the demand control unit 2 may select at least one outdoor unit 51 (S2).
- the forcibly controlled outdoor unit 51 may be excluded.
- the demand control unit 2 changes an operation mode of at least one air conditioner of the plurality of air conditioners. For example, the demand control unit 2 switches the at least one air conditioner into a blowing mode, switches the at least one air conditioner into a dehumidifying mode, changes a blowing amount of the at least one air conditioner, or changes a circulation speed of a refrigerant of the at least one air conditioner
- the selected outdoor unit 51 may be switched off so that the operation mode of the indoor unit(s) 52 connected with the outdoor unit 51 may be changed into the blowing (fan only) mode (S3), As such, the overall wattage consumption of the air conditioners may be reduced resulting from the switching off of the outdoor unit 51.
- the wattage consumption sensing unit 10 may sense the information that the estimated wattage falls short of the set wattage value, and then transfer such sensed information to the demand control unit 20. Then, the demand control unit 20 may change the operation mode of the air conditioners controlled in the previous step into a cooling mode or a warming mode from the blowing mode, so that the operation mode of the air conditioners may be restored to their previous original state (S4).
- the demand control system and the demand control method for a multi-type air conditioner in accordance with the present invention operates to control the operational efficiency of the air conditioners by changing the operation mode of the air conditioners so as to reduce the wattage consumption of the air conditioners when the estimated wattage consumption exceeds a set wattage value, thereby enabling a user in the area where the controlled air conditioner is located to feel comfortable pleasant for a longer time.
- the time taken until the air conditioner is restored from the forcibly controlled temperature to the prior desired temperature is shortened, thereby preventing unnecessary energy consumption.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Human Computer Interaction (AREA)
- Air Conditioning Control Device (AREA)
Claims (10)
- Laststeuerungssystem für eine Mehrsystem-Klimaanlage, aufweisend:eine Wattstunde-Messeinrichtung (71), die mit mehreren Klimaanlagen eines Gebäudes verbunden ist und konfiguriert ist, einen Wattverbrauchswert der mehreren Klimaanlagen zu messen;dadurch gekennzeichnet, dass das Laststeuerungssystem ferner aufweist:eine Wattverbrauch-Detektionseinheit (10), die konfiguriert ist, einen geschätzten Wattverbrauch mehrerer Klimaanlagen eines Gebäudes nach einer gewissen Zeitdauer auf Basis des von der Wattstunde-Messeinrichtung (71) gemessenen Wattverbrauchs zu berechnen, und ferner konfiguriert ist, den geschätzten Wattverbrauch mit einem vorgegebenen Lastwattverbrauch zu vergleichen; undeine Laststeuerungseinheit (20) zur Änderung eines Betriebsmodus mindestens einer Klimaanlage und einer Zirkulationsgeschwindigkeit eines Kältemittels mindestens einer Klimaanlage der mehreren Klimaanlagen, wenn die Wattverbrauch-Detektionseinheit der Laststeuerungseinheit meldet, dass der geschätzte Wattverbrauch den vorgegebenen Lastwattverbrauchswert überschreitet.
- System nach Anspruch 1, wobei die Laststeuerungseinheit ferner mindestens eine Klimaanlage in einen Blasmodus umschaltet, wenn die Wattverbrauch-Detektionseinheit der Laststeuerungseinheit meldet, dass der geschätzte Wattverbrauch den vorgegebenen Lastwattverbrauchswert überschreitet.
- System nach Anspruch 1, wobei die Laststeuerungseinheit ferner mindestens eine Klimaanlage in einen Entfeuchtungsmodus umschaltet, wenn die Wattverbrauch-Detektionseinheit der Laststeuerungseinheit meldet, dass der geschätzte Wattverbrauch den vorgegebenen Lastwattverbrauchswert überschreitet.
- System nach Anspruch 1, wobei die Laststeuerungseinheit ferner eine Blasmenge mindestens einer Klimaanlage ändert, wenn die Wattverbrauch-Detektionseinheit der Laststeuerungseinheit meldet, dass der geschätzte Wattverbrauch den vorgegebenen Lastwattverbrauchswert überschreitet.
- System nach Anspruch 1, wobei die Laststeuerungseinheit den Betriebsmodus der mindestens einen Klimaanlage wiederherstellt, wenn die Wattverbrauch-Detektionseinheit der Laststeuerungseinheit meldet, dass der geschätzte Wattverbrauch geringer als der vorgegebene Lastwattverbrauchswert ist.
- Verfahren zur Steuerung einer Klimaanlage, aufweisend:Messen eines Wattverbrauchs mehrerer Klimaanlagen;Berechnen eines geschätzten Wattverbrauchs mehrerer Klimaanlagen eines Gebäudes nach einer gewissen Zeitdauer;Vergleichen des geschätzten Wattverbrauchs mit einem vorgegebenen Lastwattverbrauchswert;Ändern eines Betriebsmodus mindestens einer Klimaanlage, undÄndern einer Zirkulationsgeschwindigkeit eines Kältemittels mindestens einer Klimaanlage der mehreren Klimaanlagen, wenn der geschätzte Wattverbrauch den vorgegebenen Lastwattverbrauchswert überschreitet.
- Verfahren nach Anspruch 6, wobei Ändern des Betriebsmodus ferner ein Umschalten mindestens einer Klimaanlage in einen Blasmodus aufweist.
- Verfahren nach Anspruch 6, wobei Ändern des Betriebsmodus ferner ein Umschalten mindestens einer Klimaanlage in einen Entfeuchtungsmodus aufweist.
- Verfahren nach Anspruch 6, wobei Ändern des Betriebsmodus ferner ein Ändern einer Blasmenge mindestens einer Klimaanlage aufweist.
- Verfahren nach Anspruch 6, ferner aufweisend: Wiederherstellen des Betriebsmodus der mindestens einen Klimaanlage, wenn der geschätzte Wattverbrauch geringer als der vorgegebene Lastwattverbrauchswert ist.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020070008569A KR20080070438A (ko) | 2007-01-26 | 2007-01-26 | 멀티에어컨의 디맨드 제어시스템 및 디맨드 제어방법 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1953473A1 EP1953473A1 (de) | 2008-08-06 |
EP1953473B1 true EP1953473B1 (de) | 2017-07-12 |
Family
ID=39415281
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP08150528.1A Not-in-force EP1953473B1 (de) | 2007-01-26 | 2008-01-23 | Laststeuerungssystem und Verfahren für Mehrsystem-Klimaanlagen |
Country Status (4)
Country | Link |
---|---|
US (1) | US20080178622A1 (de) |
EP (1) | EP1953473B1 (de) |
KR (1) | KR20080070438A (de) |
CN (1) | CN101231020A (de) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8290628B2 (en) * | 2010-07-23 | 2012-10-16 | Lg Electronics Inc. | Air conditioner and method for controlling the same |
DE102010052699A1 (de) * | 2010-11-26 | 2012-05-31 | Liebherr-Hausgeräte Ochsenhausen GmbH | Verfahren zum Betrieb eines Kühl- und/oder Gefriergeräts und Kühl- und/oder Gefriergerät |
FR2976654B1 (fr) * | 2011-06-15 | 2013-07-12 | Voltalis | Dispositif de chauffage, ventilation et/ou climatisation a gestion d'alimentation ciblee. |
JP6247990B2 (ja) * | 2014-04-16 | 2017-12-13 | 株式会社日立製作所 | 空調機器管理システム |
CN115667809A (zh) * | 2020-06-18 | 2023-01-31 | 三菱电机株式会社 | 空调系统和对空调系统的电力量进行控制的方法 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20040255601A1 (en) * | 2003-06-19 | 2004-12-23 | Lg Electronics Inc. | Central control system of air conditioners and method for operating the same |
US20050097902A1 (en) * | 2003-11-11 | 2005-05-12 | Lg Electronics Inc. | Central control system of air conditioners and method for operating the same |
EP1698835A1 (de) * | 2005-02-25 | 2006-09-06 | LG Electronics, Inc. | Zentrales Steuerungseinrichtung und zugehöriges Steuerungsverfahren für Mehreinheiten-Klimaanlage |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6346330A (ja) * | 1986-08-11 | 1988-02-27 | Sekisui Chem Co Ltd | ヒ−トポンプ式熱交換装置 |
JPH01118051A (ja) * | 1987-10-30 | 1989-05-10 | Matsushita Seiko Co Ltd | 電力デマンド制御装置 |
KR100307228B1 (ko) * | 1998-11-27 | 2002-02-19 | 윤종용 | 공기조화기의절전운전제어방법_ |
JP4217092B2 (ja) * | 2003-03-26 | 2009-01-28 | 三菱電機エンジニアリング株式会社 | 空調機のデマンド制御装置 |
KR100629345B1 (ko) * | 2005-02-24 | 2006-09-29 | 엘지전자 주식회사 | 멀티 공조 중앙제어시스템 |
KR100688202B1 (ko) * | 2005-02-25 | 2007-03-02 | 엘지전자 주식회사 | 멀티 에어컨의 피크전력 제어 시스템 및 그 제어방법 |
-
2007
- 2007-01-26 KR KR1020070008569A patent/KR20080070438A/ko active Search and Examination
-
2008
- 2008-01-22 US US12/017,610 patent/US20080178622A1/en not_active Abandoned
- 2008-01-23 EP EP08150528.1A patent/EP1953473B1/de not_active Not-in-force
- 2008-01-28 CN CNA2008100032558A patent/CN101231020A/zh active Pending
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20040255601A1 (en) * | 2003-06-19 | 2004-12-23 | Lg Electronics Inc. | Central control system of air conditioners and method for operating the same |
US20050097902A1 (en) * | 2003-11-11 | 2005-05-12 | Lg Electronics Inc. | Central control system of air conditioners and method for operating the same |
EP1698835A1 (de) * | 2005-02-25 | 2006-09-06 | LG Electronics, Inc. | Zentrales Steuerungseinrichtung und zugehöriges Steuerungsverfahren für Mehreinheiten-Klimaanlage |
Also Published As
Publication number | Publication date |
---|---|
CN101231020A (zh) | 2008-07-30 |
EP1953473A1 (de) | 2008-08-06 |
US20080178622A1 (en) | 2008-07-31 |
KR20080070438A (ko) | 2008-07-30 |
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