KR100386283B1 - Driving control apparatus for reciprocating compressor - Google Patents

Driving control apparatus for reciprocating compressor Download PDF

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Publication number
KR100386283B1
KR100386283B1 KR10-2001-0019903A KR20010019903A KR100386283B1 KR 100386283 B1 KR100386283 B1 KR 100386283B1 KR 20010019903 A KR20010019903 A KR 20010019903A KR 100386283 B1 KR100386283 B1 KR 100386283B1
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KR
South Korea
Prior art keywords
current
detection unit
reciprocating compressor
peak detection
microcomputer
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KR10-2001-0019903A
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Korean (ko)
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KR20020079178A (en
Inventor
황인영
박준형
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엘지전자 주식회사
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Priority to KR10-2001-0019903A priority Critical patent/KR100386283B1/en
Priority to US10/040,639 priority patent/US6623246B2/en
Priority to JP2002015744A priority patent/JP4213388B2/en
Priority to CNB021023786A priority patent/CN1242547C/en
Priority to IT2002MI000145A priority patent/ITMI20020145A1/en
Priority to BRPI0200275-2A priority patent/BR0200275B1/en
Priority to DE10207511A priority patent/DE10207511B4/en
Publication of KR20020079178A publication Critical patent/KR20020079178A/en
Application granted granted Critical
Publication of KR100386283B1 publication Critical patent/KR100386283B1/en

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
    • F04B49/06—Control using electricity
    • F04B49/065—Control using electricity and making use of computers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B35/00—Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for
    • F04B35/04—Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for the means being electric
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
    • F04B49/12—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00 by varying the length of stroke of the working members
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B51/00—Testing machines, pumps, or pumping installations
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B2207/00—External parameters
    • F04B2207/04—Settings
    • F04B2207/046—Settings of length of piston stroke
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2210/00—Working fluid
    • F05B2210/10—Kind or type
    • F05B2210/14—Refrigerants with particular properties, e.g. HFC-134a

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Control Of Positive-Displacement Pumps (AREA)
  • Control Of Ac Motors In General (AREA)

Abstract

본 발명은 왕복동식 압축기의 운전제어장치에 관한 것으로, 전류파형의 피크치를 검출하여 그 전류파형의 피크치를 유지하도록 스트로크를 제어하여 왕복동식 압축기를 최적의 상태로 운전하도록 한 것이다. 이를 위하여 본 발명은 모터에 인가되는 전류를 검출하는전류검출부와; 상기 전류검출부의 검출전류를 이전에 검출된 전류와 비교하여 그에 따라 전류피크치검출신호를 출력하는 전류피크치검출부와; 상기 전류피크치검출부로부터 전류피크치 검출신호가 입력되면 그 전류피크치가 유지되도록 스위칭제어신호를 출력하는 마이크로컴퓨터와; 상기 마이크로컴퓨터의 스위칭제어신호에 따라, 교류전원을 트라이악으로 단속시켜 왕복동식 압축부에 전압을 인가하는 전기회로부를 포함하여 구성한다.The present invention relates to an operation control apparatus for a reciprocating compressor, in which a stroke is controlled to detect a peak value of a current waveform and maintain a peak value of the current waveform to operate the reciprocating compressor in an optimal state. To this end, the present invention and the current detection unit for detecting a current applied to the motor; A current peak detection unit for comparing the detected current of the current detection unit with a previously detected current and outputting a current peak detection signal accordingly; A microcomputer outputting a switching control signal so that the current peak value is maintained when the current peak detection signal is input from the current peak detection unit; In accordance with the switching control signal of the microcomputer, the AC power is interrupted to the triac and comprises an electric circuit section for applying a voltage to the reciprocating compression section.

Description

왕복동식 압축기의 운전제어장치{DRIVING CONTROL APPARATUS FOR RECIPROCATING COMPRESSOR}Driving control device of reciprocating compressor {DRIVING CONTROL APPARATUS FOR RECIPROCATING COMPRESSOR}

본 발명은 왕복동식 압축기의 운전제어장치에 관한 것으로, 특히 전류파형의 피크치를 검출하여 그 전류파형의 피크치를 유지하도록 스트로크를 제어하여 왕복동식 압축기를 최적의 상태로 운전하도록 한 왕복동식 압축기의 운전제어장치에 관한 것이다.The present invention relates to an operation control apparatus for a reciprocating compressor, and more particularly, to operate a reciprocating compressor in which the stroke is controlled to detect the peak value of the current waveform and maintain the peak value of the current waveform to operate the reciprocating compressor in an optimal state. It relates to a control device.

일반적인 왕복동식 압축기는, 다상의 고정자에 권취된 코일에 공급되는 전원을 스위칭소자를 이용하여 단속함으로써, 회전 토오크(TORQUE)를 발생시키게 되는데, 회전자와 고정자간의 여자상태를 순차적으로 가변시킴으로써, 자기 흡입력에 의하여 정방향 회전 토오크를 발생시킬 수 있다.In general, a reciprocating compressor generates a torque by interrupting the power supplied to a coil wound around a multi-phase stator by using a switching element. By sequentially changing the excitation state between the rotor and the stator, The forward rotational torque can be generated by the suction force.

만약, 특정 여자상태를 가변시키지 않을 때에는 일정 위치에서 회전자가 정지하도록 할 수 있으며, 최대 인덕턴스 형상을 기점으로 스위칭소자에 인가되는 입력펄스 신호의 위상을 제어함으로써 역회전력을 발생시킬 수 있는 다양한 구동제어가 가능함에 따라 방향 제어가 필요한 전자 제품들에 적용되어 사용되고 있다.If the specific excitation state is not changed, the rotor can be stopped at a predetermined position, and various drive control that can generate reverse power by controlling the phase of the input pulse signal applied to the switching element based on the maximum inductance shape. As is possible, it is applied to electronic products requiring direction control.

특히, 냉장고나 에어컨에 사용되는 왕복동식 압축기는, 모터에 인가되는 전압으로 압축비를 가변할 수 있고, 따라서 냉력을 사용자의 의도에 따라 가변하여 제어하는 장점이 있는 것으로, 이와 같은 왕복동식 압축기를 첨부한 도면을 참조하여 상세히 설명한다.In particular, the reciprocating compressor used in the refrigerator or the air conditioner can vary the compression ratio by the voltage applied to the motor, and thus has the advantage of controlling the cooling power according to the user's intention. It will be described in detail with reference to one drawing.

도1은 일반적인 왕복동식 압축기의 운전제어장치에 대한 구성을 보인 블록도로서, 이에 도시된 바와같이 스트로크 지령치에 따라, 내부 모터에 인가되는 전압에 의해, 피스톤이 상하운동으로 스트로크를 가변시켜 냉력을 조절하는 왕복동식 압축부(L.COMP)와; 인가전압에 의해 스트로크를 증가시킴에 따라, 상기 왕복동식 압축부(L.COMP)에 발생하는 전압을 검출하는 전압검출부(30)와; 인가전압에 의해 스트로크를 증가시킴에 따라, 상기 왕복동식 압축부(L.COMP)에 인가되는 전류를 검출하는 전류 검출부(20)와; 상기 전압검출부(30) 및 전류 검출부(20)로부터 검출된 전압과 전류로 스트로크를 계산하고, 그 스트로크를 스트로크지령치와 비교하여 그에 따른 스위칭제어신호를 출력하는 마이크로컴퓨터(40)와; 상기 마이크로컴퓨터 (40)의 스위칭제어신호에 따라, 교류전원을 트라이악(Tr1)으로 단속시켜 상기 왕복동식 압축부(L.COMP)에 전압을 인가하는 전기회로부 (10)로 구성되고, 이와같이 구성된 종래 장치의 동작을 설명한다.1 is a block diagram showing a configuration of an operation control device of a general reciprocating compressor. As shown in FIG. 1, the piston changes the stroke in vertical motion by the voltage applied to the internal motor according to the stroke command value. A reciprocating compression unit (L.COMP) for adjusting; A voltage detector (30) which detects a voltage generated in the reciprocating compression section (L.COMP) as the stroke is increased by an applied voltage; A current detector 20 which detects a current applied to the reciprocating compressor L.COMP as the stroke is increased by an applied voltage; A microcomputer (40) for calculating a stroke from the voltage and current detected by the voltage detector (30) and the current detector (20), comparing the stroke with a stroke command value, and outputting a switching control signal accordingly; In accordance with the switching control signal of the microcomputer 40, it consists of an electrical circuit section 10 for interrupting the AC power to the triac (Tr1) to apply a voltage to the reciprocating compression section (L.COMP), and thus The operation of the conventional apparatus will be described.

먼저, 왕복동식 압축부(L.COMP)는 사용자에 의해 설정된 스트로크 지령치에 따른 인가전압에 의해, 피스톤이 상하 운동되고, 이로 인해 스트로크가 가변되어 냉력을 조절한다.First, the reciprocating compression section (L.COMP), the piston is moved up and down by the applied voltage according to the stroke command value set by the user, thereby the stroke is variable to adjust the cooling force.

한편, 전기회로부(10)의 트라이악(Tr1)은 마이크로컴퓨터(40)의 스위칭제어신호에 의해 턴온 주기가 길어짐에 의해 스트로크가 증가되는데, 이때 왕복동식 압축부(L.COMP)의 모터(M)에 인가되는 인가전압과 전류를 각기 전압검출부(30)와 전류검출부(20)에서 검출하여 이를 마이크로컴퓨터(40)에 인가한다.Meanwhile, the stroke of the triac Tr1 of the electric circuit unit 10 is increased due to a long turn-on period due to the switching control signal of the microcomputer 40, wherein the motor M of the reciprocating compressor L.COMP is increased. The voltage and the current applied to the) are detected by the voltage detector 30 and the current detector 20, and applied to the microcomputer 40.

그러면, 상기 마이크로컴퓨터(40)는 상기 전압검출부(30)와 전류검출부(20)로부터 검출된 인가전압과 전류를 이용하여 스트로크를 계산한후, 이 스트로크를스트로크지령치와 비교하여 그에 따라 스위칭제어신호를 출력한다.Then, the microcomputer 40 calculates a stroke using the applied voltage and current detected from the voltage detector 30 and the current detector 20, and compares the stroke with the stroke command value and accordingly switches the control signal. Outputs

즉, 상기 마이크로컴퓨터(40)는 계산된 스트로크가 스트로크 지령치 보다 작으면, 트라이악(Tr1)의 온주기를 길게 하는 스위칭제어신호를 출력하여 왕복동식 압축부(L.COMP)에 인가되는 전압을 증가시킨다.That is, when the calculated stroke is smaller than the stroke command value, the microcomputer 40 outputs a switching control signal for lengthening the on-cycle of the triac Tr1, thereby converting the voltage applied to the reciprocating compressor L.COMP. Increase.

상술한 바와 달리, 상기 마이크로컴퓨터(40)는 계산된 스트로크가 스트로크 지령치 보다 크면, 트라이악(Tr1)의 온주기를 짧게 하는 스위칭제어신호를 출력하여 왕복동식 압축부(L.COMP)에 인가되는 전압을 감소시킨다.Unlike the above, when the calculated stroke is larger than the stroke command value, the microcomputer 40 outputs a switching control signal for shortening the on-cycle of the triac Tr1 and is applied to the reciprocating compression unit L.COMP. Reduce the voltage.

그러나, 상술한 바와같이 같이 동작하는 왕복동식 압축기는, 기구적 운동 특성이 심한 비선형성을 가지고 있으므로 그 비선형성을 감안하지 않는 선형적인 제어 방법으로는 정밀 제어가 불가능한 문제점이 있다.However, since the reciprocating compressor operating as described above has a nonlinearity in which the mechanical motion characteristics are severe, there is a problem that precise control is impossible with a linear control method that does not take into account the nonlinearity.

본 발명은 상기와 같은 문제점을 해결하기 위하여 안출된 것으로, 전류파형의 피크치를 검출하여 그 전류파형의 피크치를 유지하도록 스트로크를 제어함으로써, 비선형적인 특성에 의한 오차를 감안한 피스톤의 티디씨 제어가 가능하도록 한 왕복동식 압축기의 운전제어장치를 제공함에 그 목적이 있다.The present invention has been made to solve the above problems, by controlling the stroke to detect the peak value of the current waveform and to maintain the peak value of the current waveform, it is possible to control the TCD of the piston in consideration of the error due to the non-linear characteristics It is an object of the present invention to provide an operation control device for a reciprocating compressor.

도1은 종래 왕복동식 압축기의 운전제어장치에 대한 구성을 보인 회로도.1 is a circuit diagram showing a configuration for an operation control apparatus of a conventional reciprocating compressor.

도2는 본 발명 왕복동식 압축기의 운전제어장치에 대한 구성을 보인 회로도.Figure 2 is a circuit diagram showing a configuration for the operation control device of the reciprocating compressor of the present invention.

도3은 도2에 있어서, 스위칭제어신호의 듀티비를 증가시킴에 따른 벡터크기신호의 변화를 나타낸도.3 is a view showing a change in a vector magnitude signal as the duty ratio of the switching control signal is increased in FIG.

*****도면의 주요부분에 대한 부호의 설명********** Description of the symbols for the main parts of the drawings *****

10:전기회로부 20:전류검출부10: electric circuit unit 20: current detection unit

40:마이크로컴퓨터 100:전류피크치검출부40: microcomputer 100: current peak detection unit

상기와 같은 목적을 달성하기 위한 본 발명은 모터에 인가되는 전류를 검출하는전류검출부와; 상기 전류검출부의 검출전류를 이전에 검출된 전류와 비교하여 그에 따라 전류피크치검출신호를 출력하는 전류피크치검출부와; 상기 전류피크치검출부로부터 전류피크치 검출신호가 입력되면 그 전류피크치가 유지되도록 스위칭제어신호를 출력하는 마이크로컴퓨터와; 상기 마이크로컴퓨터의 스위칭제어신호에 따라, 교류전원을 트라이악으로 단속시켜 왕복동식 압축부에 전압을 인가하는 전기회로부를 포함하여 구성한 것을 특징으로 한다.The present invention for achieving the above object is a current detection unit for detecting a current applied to the motor; A current peak detection unit for comparing the detected current of the current detection unit with a previously detected current and outputting a current peak detection signal accordingly; A microcomputer outputting a switching control signal so that the current peak value is maintained when the current peak detection signal is input from the current peak detection unit; In accordance with the switching control signal of the microcomputer, the AC power is interrupted by a triac, characterized in that it comprises an electric circuit section for applying a voltage to the reciprocating compression section.

이하, 본 발명에 의한 왕복동식 압축기의 운전제어장치에 대한 작용 및 효과를 첨부한 도면을 참조하여 상세히 설명한다.Hereinafter, with reference to the accompanying drawings, the operation and effect of the operation control apparatus of the reciprocating compressor according to the present invention will be described in detail.

도2는 본 발명 왕복동식 압축기의 운전제어장치에 대한 구성을 보인 회로도로서, 이에 도시한 바와같이 모터에 인가되는 전류를 검출하는전류검출부(20)와; 상기 전류검출부(20)의 검출전류를 이전에 검출된 전류와 비교하여 그에 따라 전류피크치검출신호를 출력하는 전류피크치검출부(100)와; 상기 전류피크치검출부 (10 0)로부터 전류피크치 검출신호가 입력되면 그 전류피크치가 유지되도록 스위칭제어신호를 출력하는 마이크로컴퓨터(40)와; 상기 마이크로컴퓨터(40)의 스위칭제어신호에 따라, 교류전원을 트라이악 (Tr1)으로 단속시켜 왕복동식 압축부(L.COMP)에 전압을 인가하는 전기회로부(10)를 포함하여 구성하며, 이와같이 구성한 본 발명의 동작을 설명한다.2 is a circuit diagram showing a configuration of an operation control apparatus of the reciprocating compressor according to the present invention, and as shown therein, a current detection unit 20 for detecting a current applied to a motor; A current peak detection unit (100) for comparing the detected current of the current detection unit (20) with a previously detected current and outputting a current peak detection signal accordingly; A microcomputer (40) which outputs a switching control signal so that the current peak value is maintained when the current peak detection signal is input from the current peak detection unit (10 0); In accordance with the switching control signal of the microcomputer 40, the AC power is interrupted to the triac (Tr1) and comprises an electric circuit section 10 for applying a voltage to the reciprocating compression section (L.COMP), and thus The operation of the present invention thus constructed will be described.

먼저, 먼저, 왕복동식 압축부(L.COMP)는 사용자에 의해 설정된 스트로크 지령치에 따른 스트로크전압에 의해, 피스톤이 상하 운동되고, 이로 인해 스트로크가 가변되어 냉력을 조절한다.First, the reciprocating compression section (L.COMP), the piston is moved up and down by the stroke voltage according to the stroke command value set by the user, thereby the stroke is variable to adjust the cooling force.

즉, 전기회로부(10)의 트라이악(Tr1)이 마이크로컴퓨터(40)의 스위칭제어신호에 의해 턴온 주기가 길어짐에 의해 스트로크가 증가되면, 그 스트로크에 의해 왕복동식 압축부(L.COMP)가 구동된다.That is, when the stroke of the triac Tr1 of the electric circuit unit 10 increases due to the longer turn-on period by the switching control signal of the microcomputer 40, the reciprocating compression unit L.COMP Driven.

이때, 전류검출부(20)는 상기 왕복동식 압축부(L.COMP)에 인가되는 전류를 검출하여 이를 전류피크치검출부(100)에 인가하고, 이에 따라 상기 전류피크치검출부(100)는 상기 전류검출부(20)로부터 검출전류를 입력받아 이를 이전 검출전류와 비교하여 그에 따른 전류피크치검출신호를 출력하는데, 즉 상기 전류피크치검출부 (100)는 현재 검출전류와 이전 검출전류를 비교하여, 그 비교결과 이전 검출전류가 현재 검출전류보다 크면 그 시점을 전류 피크치로 인식하여 그에 따른 전류피크치검출신호를 출력한다.At this time, the current detection unit 20 detects the current applied to the reciprocating compression unit (L.COMP) and applies it to the current peak detection unit 100, accordingly, the current peak detection unit 100 is the current detection unit ( 20) receives the detection current from the current and compares it with the previous detection current and outputs a current peak detection signal accordingly, that is, the current peak detection unit 100 compares the current detection current with the previous detection current, and detects the previous detection result. If the current is larger than the current detection current, the point of time is recognized as the current peak value and the current peak detection signal is output accordingly.

그러면, 마이크로컴퓨터(40)는 상기 전류피크치 검출신호를 입력받아 그 전류파형의 피크치가 유지되도록 그 전류피크치 검출신호가 입력되는 시점에 해당되는 듀티비를 가진 스위칭제어신호를 전기회로부(10)에 인가한다.Then, the microcomputer 40 receives the current peak detection signal and transmits a switching control signal having a duty ratio corresponding to the point in time at which the current peak detection signal is input to the electric circuit unit 10 so that the peak value of the current waveform is maintained. Is authorized.

이에 따라, 전기회로부(10)는 상기 마이크로컴퓨터(40)의 스위칭제어신호에 의해, 교류전원을 트라이악(Tr1)으로 단속시켜 상기 왕복동식 압축부(L.COMP)에 전압을 인가하여 그 왕복동식 압축부(L.COMP)의 운전을 제어한다.Accordingly, the electric circuit unit 10 regulates the AC power to the triac Tr1 by the switching control signal of the microcomputer 40 to apply a voltage to the reciprocating compression unit L.COMP, thereby Controls the operation of the L.COMP.

여기서, 도3은 스위칭제어신호의 듀티비를 증가시킴에 따른 전류파형의 변화를 나타낸 것으로, 실험에 의해 전류파형의 피크치가 발생하는 구간이 TDC가 '0'인 지점임을 알 수 있다.3 shows a change in the current waveform as the duty ratio of the switching control signal is increased, and it can be seen from the experiment that the section where the peak value of the current waveform occurs is the point where the TDC is '0'.

다시 말해서, 본 발명은 왕복동식 압축기의 운전시에 발생하는 전류를 이용하여 TDC가 '0'인 지점인 전류 파형의 피크치를 구하고, 그 전류파형의 피크치를 유지하는 스위칭제어신호로 트라이악 (Tr1)의 온/오프 주기를 제어하여 왕복동식 압축기의 운전을 최적 제어한다.In other words, the present invention obtains the peak value of the current waveform at the point where TDC is '0' using the current generated during operation of the reciprocating compressor, and uses the triac (Tr1) as the switching control signal to maintain the peak value of the current waveform. ) To control the operation of the reciprocating compressor optimally.

이상에서 상세히 설명한 바와같이 본 발명은, 왕복동식 압축기의 운전시, 기구적인 특성에 의한 비선형적 특성을 감지하기 위해, 전류파형의 피크치를 검출하여 그 전류파형의 피크치를 유지하도록 스트로크를 제어함으로써, 비선형적인 특성에 의한 오차를 감안한 피스톤의 티디씨 제어가 가능하고, 이로 인해 왕복동식 압축기의 운전효율을 향상시키는 효과가 있다.As described in detail above, the present invention, in operation of the reciprocating compressor, by detecting the peak value of the current waveform to control the non-linear characteristics due to the mechanical characteristics, by controlling the stroke to maintain the peak value of the current waveform, It is possible to control the TCD of the piston in consideration of the error due to the non-linear characteristics, thereby improving the operating efficiency of the reciprocating compressor.

또한, 모터에 인가되는 전류 정보만을 이용하여 왕복동식 압축기의 운전을 제어하므로 비용이 절감되는 효과가 있다.In addition, since the operation of the reciprocating compressor is controlled using only current information applied to the motor, cost is reduced.

Claims (2)

모터에 인가되는 전류를 검출하는전류검출부와;A current detector for detecting a current applied to the motor; 상기 전류검출부의 검출전류를 이전에 검출된 전류와 비교하여 그에 따라 전류피크치검출신호를 출력하는 전류피크치검출부와;A current peak detection unit for comparing the detected current of the current detection unit with a previously detected current and outputting a current peak detection signal accordingly; 상기 전류피크치검출부로부터 전류피크치 검출신호가 입력되면 그 전류피크치가 유지되도록 스위칭제어신호를 출력하는 마이크로컴퓨터와;A microcomputer outputting a switching control signal so that the current peak value is maintained when the current peak detection signal is input from the current peak detection unit; 상기 마이크로컴퓨터의 스위칭제어신호에 따라, 교류전원을 트라이악으로 단속시켜 왕복동식 압축부에 전압을 인가하는 전기회로부를 포함하여 구성한 것을 특징으로 하는 왕복동식 압축기의 운전제어장치.And an electric circuit unit for applying a voltage to the reciprocating compression unit by interrupting an AC power supply with a triac according to the switching control signal of the microcomputer. 제1 항에 있어서, 전류피크치검출부는 현재 검출전류를 이전 검출전류와 비교하여 이전 검출전류가 현재 검출전류 보다 크면 전류피크치검출신호를 출력하는 것을 특징으로 하는 왕복동식 압축기의 운전제어장치.The reciprocating compressor operation control apparatus according to claim 1, wherein the current peak detection unit outputs a current peak detection signal when the current detection current is compared with the previous detection current and the current detection current is larger than the current detection current.
KR10-2001-0019903A 2001-04-13 2001-04-13 Driving control apparatus for reciprocating compressor KR100386283B1 (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
KR10-2001-0019903A KR100386283B1 (en) 2001-04-13 2001-04-13 Driving control apparatus for reciprocating compressor
US10/040,639 US6623246B2 (en) 2001-04-13 2002-01-09 Apparatus and method for controlling operation of linear motor compressor
JP2002015744A JP4213388B2 (en) 2001-04-13 2002-01-24 Operation control device and operation control method for reciprocating compressor
CNB021023786A CN1242547C (en) 2001-04-13 2002-01-24 Device and method for controlling running of compressor of linear motor
IT2002MI000145A ITMI20020145A1 (en) 2001-04-13 2002-01-29 DEVICE AND PROCEDURE FOR CHECKING THE OPERATION OF A LINEAR MOTOR-COMPRESSOR
BRPI0200275-2A BR0200275B1 (en) 2001-04-13 2002-01-31 APPARATUS AND METHOD FOR CONTROLING THE OPERATION OF A LINEAR MOTOR COMPRESSOR
DE10207511A DE10207511B4 (en) 2001-04-13 2002-02-22 Apparatus and method for controlling the operation of a linear motor compressor

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR930015280A (en) * 1991-12-26 1993-07-24 배순훈 DC motor starting control circuit
KR20000025265A (en) * 1998-10-09 2000-05-06 구자홍 Circuit and method for preventing brake down of linear compressor

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR930015280A (en) * 1991-12-26 1993-07-24 배순훈 DC motor starting control circuit
KR20000025265A (en) * 1998-10-09 2000-05-06 구자홍 Circuit and method for preventing brake down of linear compressor

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