KR19980028557A - Variable Compressor Frequency Transition Speed of Air Conditioner - Google Patents
Variable Compressor Frequency Transition Speed of Air Conditioner Download PDFInfo
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- KR19980028557A KR19980028557A KR1019960047664A KR19960047664A KR19980028557A KR 19980028557 A KR19980028557 A KR 19980028557A KR 1019960047664 A KR1019960047664 A KR 1019960047664A KR 19960047664 A KR19960047664 A KR 19960047664A KR 19980028557 A KR19980028557 A KR 19980028557A
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- air conditioner
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- Air Conditioning Control Device (AREA)
Abstract
본 발명은 인버터에 의한 가변능력형 압축기 운전주파수 속도를 가변하여 진동 및 소음을 방지하고 직류피크발생과 총합전류상승을 방지하기 위한 것으로, 외부명령이나 부하상태에 따라 압축기 운전주파수를 엎/다운시킬지 판단하고 엎조건일 경우 저주파수 대역에서 주파수 상승속도를 증가하고 고주파수 대역에서는 감소시키며, 다운조건일 경우에는 고주파수 대역에서 주파수 하강속도를 증가시키고 저주파 대역에서 주파수 상승속도를 감소시키도록 데이터릍 저장하고, 엎/다운 조건 따른 해당 주파수 대역에서 상기 데이터에 상응하는 주파수로 천이되게 제어한다.The present invention is to prevent the vibration and noise by varying the variable frequency operation frequency of the compressor by the inverter, and to prevent the occurrence of DC peak and the increase of the total current, whether the compressor operating frequency according to the external command or load state If it is determined that the condition is increased, the frequency rising speed is increased in the low frequency band and decreased in the high frequency band.In the down condition, the data is stored to increase the frequency falling speed in the high frequency band and reduce the frequency rising speed in the low frequency band. Control to transition to a frequency corresponding to the data in the corresponding frequency band according to the down / down conditions.
Description
본 발명은 공기조화기의 압축기 운전주파수 제어방법에 관한 것으로, 특히 압축기 운전주파수의 엎/다운시 주파수대역에 따라 천이속도를 가변하도록 하는 공기조화기의 압축기 주파수 천이속도 가변방법에 관한 것이다.The present invention relates to a method for controlling a compressor operating frequency of an air conditioner, and more particularly, to a method for changing a compressor frequency transition speed of an air conditioner to vary a transition speed according to a frequency band when a compressor operating frequency is down / down.
통상적인 인버터 공조기는 일정한 교류전압을 정류를 통해 직류로 변환한 후 다시 교류로 변환하여 냉방 부하조건에 따라 주파수를 변화시키는 것으로, 일예로 압축기에 적용할 경우 주파수 변화에 따라 회전수가 변하면서 냉방 능력을 가변시킬 수 있게 되며, 아울러 저소비 전력의 절전냉방 운전이 가능하게 된다.검출부(280)및 과전류검출부(290)로 구성되어 소정의 프로그램에 의해 시스템을 제어함으로써 냉.난방 공조를 행하게 된다.A typical inverter air conditioner converts a constant AC voltage into a direct current through rectification and then converts it into an alternating current to change the frequency according to the cooling load condition. For example, when applied to a compressor, the rotational speed changes according to the frequency change. In addition, the low power consumption power saving cooling operation is possible. The detection unit 280 and the overcurrent detection unit 290 are configured to control the system by a predetermined program to perform air conditioning and heating.
그러나 이러한 방법은 주파수 엎시에 주운전주파수 대역이 아닌 주파수를 경유할 때 즉, 초기 압축기 구동시 저주파수에서 일정한 속도로 상승하기 때문에 소음 및 진동이 발생하고, 반대로 주파수를 다운시킬 때는 냉매 압력차에 의해 직류피크가 발생하거나 총합전류가 상승하는 문제점이 있다.However, this method causes noise and vibration when the frequency is passed through the frequency other than the main operation frequency band, that is, at the low frequency during initial compressor operation. There is a problem that a DC peak occurs or the total current rises.
본 발명은 이러한 점을 감안하여 안출된 것으로, 특히 압축기 주파수를 엎시킬 경우 진동 및 소음이 발생하는 저주파대역에서는 주파수 천이속도를 급변시켜 신속히 정상운전에 도달할 수 있도록 하고, 반대로 주파수를 다운시킬 경우에는 주파수 천이속도가 서서히 감소되게 제어하여 압축기 시스템을 보호할 수 있도록 하는 공기조화기의 주파수 천이속도 가변방법을 제공하는데 그 목적이 있다.The present invention has been devised in view of this point, and especially when the compressor frequency is dropped, in the low frequency band where vibration and noise occur, the frequency transition speed is changed rapidly so that the normal operation can be reached quickly, and conversely, when the frequency is lowered. It is an object of the present invention to provide a method of varying the frequency shifting speed of an air conditioner to control the frequency shifting speed so as to protect the compressor system.
이러한 목적을 달성하기 위한 본 발명은 인버터 압축기와, 상기 압축기의 운전주파수를 소정의 출력전압과 운전주파수의 비로 제어하는 인버터와, 상기 인버터에 공기조화 부하에 따른 가변주파수 제어명령을 부여하는 제어수단이 구비된 공기조화장치에 있어서, 외부명령이나 부하상태에 따라 압축기 운전주파수를 엎/다온시킬지 판단하고 엎조건일 경우 저주파수 대역에서 주파수 상승속도를 증가하고 저주파수 대역에서는 감소시키며, 다운조건일 경우에는 고주파수 대역에서 주파수 하강속도를 증가시키고 저주파 대역에서 주파수 상승속도를 감소시키도록 데이터를 저장하고, 엎/다운 조건 따른 해당 주파수 대역에서 상기 데이터에 상응하는 주파수로 천이되게 제어함을 특징으로 한다.The present invention for achieving this object is an inverter compressor, an inverter for controlling the operating frequency of the compressor at a ratio of a predetermined output voltage and the operating frequency, and control means for giving a variable frequency control command according to the air conditioning load to the inverter In the equipped air conditioner, it is determined whether the compressor operation frequency is up / down according to the external command or the load condition, and if the condition is increased, the frequency rising speed is increased in the low frequency band and decreased in the low frequency band. It stores the data to increase the frequency descending speed in the high frequency band and decrease the frequency rising speed in the low frequency band, and controls to transition to the frequency corresponding to the data in the corresponding frequency band according to the down / down condition.
도 1은 일반적인 공기조화기 시스템을 보인 블럭회로도,1 is a block circuit diagram showing a general air conditioner system,
도면의 주요부분에 대한 부호의 설명Explanation of symbols for main parts of the drawings
이하, 본 발명의 바람직한 실시예를 첨부된 도면을 통해 상세하게 설명하면 다음과 같다. 한편, 압축기 운전주파수 엎조건은 압축기 초기기동이나 또는 최소운전주파수에서 목표주파수로의 상승일 수 있고, 반대로 다운조건은 압축기 기동중에 시스템을 정지하거나 또는 과부하 방지를 위해 일시적인 다운현상일 수도 있기 때문에 마이컴에서는 압축기 운전중인지를 판단하고 아울러 주파수 엎/다운 조건을 판단(S10)한다.Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. On the other hand, the compressor operating frequency spill condition may be the initial startup of the compressor or the rise from the minimum operating frequency to the target frequency, and conversely, the down condition may be a temporary down phenomenon to stop the system or prevent overload during the start of the compressor. In step S10 determines whether the compressor is in operation and determines the frequency down / down condition.
이상에서 설명한 바와 같이 본 발명은 저주파대역에서는 주파수 천이속도를 빨리하고 반대로 주파수를 다운시킬 경우에는 주파수 천이속도가 서서히 감소되게 제어함으로써 초기 기동시에는 진동 및 소음을 방지할 수 있을 뿐만 아니라 쾌적한 환경에 도달하는 시간을 단축할 수 있고, 아울러 주파수를 다운시킬 경우에는 직류피크발생이나 총합전류의 상승을 방지할 수 있는 효과가 있다.As described above, the present invention controls the frequency transition speed to be slow in the low frequency band, and conversely, when the frequency is down, the vibration and noise can be prevented at the initial startup as well as in a comfortable environment. It is possible to shorten the time to reach, and at the same time, when the frequency is down, there is an effect of preventing the occurrence of a DC peak or an increase in the total current.
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Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019960047664A KR100194110B1 (en) | 1996-10-23 | 1996-10-23 | Variable Compressor Frequency Transition Speed of Air Conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019960047664A KR100194110B1 (en) | 1996-10-23 | 1996-10-23 | Variable Compressor Frequency Transition Speed of Air Conditioner |
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| Publication Number | Publication Date |
|---|---|
| KR19980028557A true KR19980028557A (en) | 1998-07-15 |
| KR100194110B1 KR100194110B1 (en) | 1999-06-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| KR1019960047664A KR100194110B1 (en) | 1996-10-23 | 1996-10-23 | Variable Compressor Frequency Transition Speed of Air Conditioner |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100755310B1 (en) * | 2005-12-23 | 2007-09-05 | 엘지전자 주식회사 | Control method of compressor equiped in air conditioner |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103900194A (en) * | 2014-03-13 | 2014-07-02 | 美的集团股份有限公司 | Variable frequency air conditioner and intelligent unit high-frequency starting control method and system of variable frequency air conditioner |
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1996
- 1996-10-23 KR KR1019960047664A patent/KR100194110B1/en not_active IP Right Cessation
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100755310B1 (en) * | 2005-12-23 | 2007-09-05 | 엘지전자 주식회사 | Control method of compressor equiped in air conditioner |
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| Publication number | Publication date |
|---|---|
| KR100194110B1 (en) | 1999-06-15 |
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