KR930008302A - Compressor control method and device according to current sensing - Google Patents

Compressor control method and device according to current sensing Download PDF

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Publication number
KR930008302A
KR930008302A KR1019910018391A KR910018391A KR930008302A KR 930008302 A KR930008302 A KR 930008302A KR 1019910018391 A KR1019910018391 A KR 1019910018391A KR 910018391 A KR910018391 A KR 910018391A KR 930008302 A KR930008302 A KR 930008302A
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KR
South Korea
Prior art keywords
current
compressor
frequency
sensing
overload
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Application number
KR1019910018391A
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Korean (ko)
Inventor
이현석
Original Assignee
이헌조
주식회사 금성사
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Publication date
Application filed by 이헌조, 주식회사 금성사 filed Critical 이헌조
Priority to KR1019910018391A priority Critical patent/KR930008302A/en
Publication of KR930008302A publication Critical patent/KR930008302A/en

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Abstract

본 발명은 에어콘의 압축기에 흐르는 전류를 감지하여 압축기의 운전제어를 하기 위한 방법과 장치에 관한 것으로 종래의 과부하 차단제어는 과부하로 판정되는 전류량의 정확한 설정이 어렵고 이의 감지를 통한 차단동작에 오차가 심하기 때문에 효과적으로 부하측을 보호할 수 없고 이에 따른 기기파손과 수명단축이 초래되는 단점을 해결하기 위한 것이다.The present invention relates to a method and apparatus for controlling the operation of the compressor by sensing the current flowing through the compressor of the air conditioner, the conventional overload cut-off control is difficult to accurately set the amount of current that is determined as an overload and error in the cut-off operation It is to solve the disadvantage that it can not effectively protect the load side because it is severe, resulting in equipment damage and shortened life.

본 발명은 압축기 전류를 감지하고 감지된 전류를 정확히 측정하여 과부하로 판정될 기준전류와 비교하고 비교결과에 따라 압축기의 운전정지 및 압축이의 주파수 가감제어를 수행하므로서 과부하 차단동작에 정밀을 기하고 기기보호와 수명연장을 도모할 수 있도록한 에어콘에서 압축기를 운전 제어하는 수단에 적용한다.The present invention detects the compressor current and accurately measures the sensed current, compares it with the reference current to be determined as the overload, and performs the operation of the compressor and the frequency deceleration control of the compressor according to the comparison result, thereby providing precision for the overload breaking operation. Applicable to the means for controlling the operation of the compressor in the air conditioner to protect the equipment and to prolong its life.

Description

전류감지에 따른 압축기 제어방법과 장치Compressor control method and device according to current sensing

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제1도는 본 발명에 따른 에어콘의 압축기 제어부 블록구성도.1 is a block diagram of a compressor control unit of an air conditioner according to the present invention.

제2도는 본 발명에 따른 에어콘의 감지전류-압축기 주파수 그래프.2 is a sense current-compressor frequency graph of the air conditioner according to the present invention.

제3도는 본 발명의 압축기 제어방법을 나타낸 플로우챠트.3 is a flowchart showing a compressor control method of the present invention.

Claims (2)

압축기(1)에 흐르는 감지전류(1)를 과전류 기준전류(I1)와 비교하여 감지전류(1)가 과전류 기준 전류(I1)보다 소정시간(S1)이상 지속적으로 초과되면 압축기(1)를 운전 정지시킨후 이상(과부하)표시를 하고 종료하는 제1과정과, 감지전류(1)와 주파수 조절 기준전류(I2)를 비교하여 감지전류(I)가 상기 기준전류(I2) 이하가 될때까지 압축기 주파수를 감소시키는 제2과정과, 상기 제2과정에 이어서 감지전류(I)와 정상 기준전류(I3)를 비교하여 감지전류(I)가 큰값이면 종료하고 작은 값이면 실온제어에 의하여 설정된 압축기 운전주파수(F)와 기준주파수(Fr)를 비교하는 제3과정과, 비교결과 압축기 운전주파수(F)가 기준주파수(Fr)보다 작은 값이면 종료하고 큰값이면 소정시간(S2)지연후 압축기 주파수(f)를 증가시키면서 실욘제어에 의한 압축기 운전 주파수(F)와 가장 근접한 주파수가 되도록 에저하는 제4과정으로 이루어진 전류감지에 따른 압축기 제어방법.The compressor 1 is operated when the sensing current 1 continuously exceeds the overcurrent reference current I1 for a predetermined time S1 by comparing the sensing current 1 flowing through the compressor 1 with the overcurrent reference current I1. The first process of stopping and displaying an abnormality (overload) and terminating, and comparing the sensing current 1 with the frequency regulating reference current I2, the compressor until the sensing current I becomes less than or equal to the reference current I2. The second process of reducing the frequency, and after the second process, the sensing current I and the normal reference current I3 are compared. If the sensing current I is a large value, the process is terminated. The third step of comparing the frequency (F) and the reference frequency (Fr), and if the comparison result is the compressor operating frequency (F) is less than the reference frequency (Fr) is terminated, if the larger value of the compressor after a predetermined time (S2) delay ( f) increases the compressor operating frequency (F) and It decreases so that the frequency is close to the compressor control method in accordance with the current detection consisting of the fourth process. 압축기(1)에 흐르는 전류를 감지하고 감지된 전류레벨을 측정하여 마이컴(3)에 감지전류정보를 제공하는 전류측정수단(2)과, 상기 전류측정수단(2)에서 공급된 감지전류정보에 따라 압축기(1)의 운전정지 또는 압축기 주파수의 가감제어를 수행하는 마이컴(3)으로 구성된 전류감지에 따른 압축기 제어장치.Current measuring means (2) for sensing current flowing through the compressor (1) and measuring the detected current level to provide the sensing current information to the microcomputer (3), and the sense current information supplied from the current measuring means (2). Compressor control device according to the current sensing consisting of a microcomputer (3) to perform the operation of the compressor (1) or the control of the compressor frequency. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019910018391A 1991-10-18 1991-10-18 Compressor control method and device according to current sensing KR930008302A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019910018391A KR930008302A (en) 1991-10-18 1991-10-18 Compressor control method and device according to current sensing

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019910018391A KR930008302A (en) 1991-10-18 1991-10-18 Compressor control method and device according to current sensing

Publications (1)

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KR930008302A true KR930008302A (en) 1993-05-21

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KR1019910018391A KR930008302A (en) 1991-10-18 1991-10-18 Compressor control method and device according to current sensing

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100347924B1 (en) * 2000-07-01 2002-08-09 엘지전자주식회사 Method for start-current controlling of compressor
KR100437054B1 (en) * 2002-05-27 2004-06-23 엘지전자 주식회사 Over load protecting device for heat pump and method for the same
KR102521637B1 (en) * 2021-11-17 2023-04-14 주식회사 대우컴프레셔 Hermetic compressor and control method thereof

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100347924B1 (en) * 2000-07-01 2002-08-09 엘지전자주식회사 Method for start-current controlling of compressor
KR100437054B1 (en) * 2002-05-27 2004-06-23 엘지전자 주식회사 Over load protecting device for heat pump and method for the same
KR102521637B1 (en) * 2021-11-17 2023-04-14 주식회사 대우컴프레셔 Hermetic compressor and control method thereof

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