KR20060106192A - Capacity variable operation control method of refrigerator adopting reciprocating compressor - Google Patents

Capacity variable operation control method of refrigerator adopting reciprocating compressor Download PDF

Info

Publication number
KR20060106192A
KR20060106192A KR1020050028671A KR20050028671A KR20060106192A KR 20060106192 A KR20060106192 A KR 20060106192A KR 1020050028671 A KR1020050028671 A KR 1020050028671A KR 20050028671 A KR20050028671 A KR 20050028671A KR 20060106192 A KR20060106192 A KR 20060106192A
Authority
KR
South Korea
Prior art keywords
capacity
reciprocating compressor
stroke
power consumption
threshold
Prior art date
Application number
KR1020050028671A
Other languages
Korean (ko)
Other versions
KR100815424B1 (en
Inventor
허경범
이철웅
김형주
Original Assignee
엘지전자 주식회사
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 엘지전자 주식회사 filed Critical 엘지전자 주식회사
Priority to KR1020050028671A priority Critical patent/KR100815424B1/en
Publication of KR20060106192A publication Critical patent/KR20060106192A/en
Application granted granted Critical
Publication of KR100815424B1 publication Critical patent/KR100815424B1/en

Links

Images

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
    • F04B49/12—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
    • 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
    • F04B49/06—Control using electricity
    • 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
    • F25B31/00—Compressor arrangements
    • F25B31/02—Compressor arrangements of motor-compressor units
    • F25B31/023—Compressor arrangements of motor-compressor units with compressor of reciprocating-piston type
    • 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
    • F25B49/00—Arrangement or mounting of control or safety devices
    • F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
    • F25B49/022—Compressor control arrangements
    • 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
    • F25B49/00—Arrangement or mounting of control or safety devices
    • F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
    • F25B49/025—Motor control arrangements
    • 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
    • F04B2201/00—Pump parameters
    • F04B2201/02—Piston parameters
    • F04B2201/0206—Length of piston stroke
    • 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
    • F04B2203/00—Motor parameters
    • F04B2203/04—Motor parameters of linear electric motors
    • F04B2203/0401—Current
    • 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
    • F04B2203/00—Motor parameters
    • F04B2203/04—Motor parameters of linear electric motors
    • F04B2203/0402—Voltage
    • 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
    • F25B2600/00—Control issues
    • F25B2600/02—Compressor control
    • F25B2600/024—Compressor control by controlling the electric parameters, e.g. current or voltage

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Control Of Positive-Displacement Pumps (AREA)
  • Compressors, Vaccum Pumps And Other Relevant Systems (AREA)

Abstract

본 발명은 왕복동식 압축기를 채용한 냉장고의 용량가변 운전제어방법에 관한 것으로, 왕복동식 압축기의 운전중에 소비전력이 최소가 되는 최적의 운전용량을 검출하고, 그 검출된 최적의 운전용량에서 용량 가변 운전을 수행함으로써, 소비전력을 최소화하도록 한 것이다. 이를 위하여 본 발명은 왕복동식 압축기가 동작되면 TDC=0인 최대 용량으로 운전하다가, 냉장고 제어수단으로부터 용량가변 운전제어신호가 입력되면 그 최대 용량에서의 스트로크와 파워를 계산하여 저장하는 과정과; 상기 최대 용량에서의 스트로크를 감소시켜, 기설정된 임계용량으로 왕복동식 압축기를 운전하는 과정과; 상기 임계 용량에서의 모터 전류와 모터전압을 검출하는 과정과; 상기 모터전류와 모터전압으로 스트로크를 추정하고, 그 추정된 스트로크와 스트로크 지령치를 비교하여 그 비교결과에 근거하여 스트로크를 제어하는 과정과; 상기 왕복동식 압축기가 오프되면, 상기 모터전류와 모터전압을 이용하여 한 주기 동안의 소비전력을 계산하는 과정과; 상기 소비전력을 이전 주기의 소비전력과 비교하고 그 비교결과에 근거하여 왕복동식 압축기의 임계용량을 가변하는 과정으로 이루어진다.The present invention relates to a variable capacity operation control method of a refrigerator employing a reciprocating compressor, and detects an optimum operating capacity that minimizes power consumption during operation of the reciprocating compressor, and varies the capacity at the detected optimal operating capacity. By performing the operation, the power consumption is minimized. To this end, the present invention is to operate at a maximum capacity of TDC = 0 when the reciprocating compressor is operated, and to calculate and store the stroke and power at the maximum capacity when the variable capacity operation control signal is input from the refrigerator control means; Reducing the stroke at the maximum capacity to drive a reciprocating compressor at a predetermined threshold capacity; Detecting a motor current and a motor voltage at the threshold capacitance; Estimating the stroke based on the motor current and the motor voltage, comparing the estimated stroke with the stroke command value, and controlling the stroke based on the comparison result; Calculating power consumption for one cycle by using the motor current and the motor voltage when the reciprocating compressor is turned off; The power consumption is compared with the power consumption of the previous cycle and the threshold capacity of the reciprocating compressor is varied based on the comparison result.

Description

왕복동식 압축기를 채용한 냉장고의 용량가변 운전제어방법{CAPACITY VARIABLENESS DRIVING CONTROL METHOD FOR REFRIGERATOR IN USING RECIPROCATING COMPRESSOR}CAPACITY VARIABLENESS DRIVING CONTROL METHOD FOR REFRIGERATOR IN USING RECIPROCATING COMPRESSOR}

도1은 일반적인 왕복동식 압축기의 운전제어장치에 대한 구성을 보인 블록도.Figure 1 is a block diagram showing the configuration for the operation control device of a typical reciprocating compressor.

도2는 종래 왕복동식 압축기를 채용한 냉장고의 용량가변 운전제어방법에 대한 실시예의 동작흐름도.Figure 2 is a flow chart of an embodiment of a variable capacity operation control method of a refrigerator employing a conventional reciprocating compressor.

도3은 본 발명 왕복동식 압축기를 채용한 냉장고의 용량가변 운전제어방법에 대한 실시예의 동작흐름도.Figure 3 is an operation flowchart of an embodiment of a capacity variable operation control method of a refrigerator employing the present invention reciprocating compressor.

도4는 본원발명과 종래의 소비전력 차이를 보인 파형도.Figure 4 is a waveform diagram showing the difference between the present invention and the conventional power consumption.

본 발명은 왕복동식 압축기를 채용한 냉장고의 용량가변 운전제어방법에 관한 것으로, 특히 왕복동식 압축기의 운전중에 소비전력이 최소가 되는 최적의 운전용량을 검출하고, 그 검출된 최적의 운전용량에서 용량 가변 운전을 수행함으로써, 소비전력을 최소화하도록 한 왕복동식 압축기를 채용한 냉장고의 용량가변 운전제 어방법에 관한 것이다.The present invention relates to a variable capacity operation control method of a refrigerator employing a reciprocating compressor, in particular, to detect the optimum operating capacity of the minimum power consumption during operation of the reciprocating compressor, the capacity at the detected optimum operating capacity The present invention relates to a variable capacity control method of a refrigerator employing a reciprocating compressor for minimizing power consumption by performing variable operation.

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.

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 스트로크를 스트로크지령치와 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 스위칭 제어신호를 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 to convert the voltage applied to the reciprocating compression unit L.COMP. Increase.

상술한 바와 달리, 상기 마이크로컴퓨터(40)는 계산된 스트로크가 스트로크 지령치 보다 크면, 트라이악(Tr1)의 온주기를 짧게 하는 스위칭 제어신호를 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.

상기와 같은 왕복동식 압축기를 채용한 냉장고는, 소비전력 감소를 위하여 스트로크를 줄여서 운전하는 용량 가변 운전 제어를 실행하는데, 이를 도2를 참조하여 설명한다.The refrigerator employing the reciprocating compressor as described above executes a variable capacity operation control in which a stroke is reduced in order to reduce power consumption, which will be described with reference to FIG. 2.

우선, 왕복동식 압축기의 운전용량을, 최대 용량, 즉 TDC=0인 스트로크를 검출하고, 그 최대 용량에서의 스트로크와 파워를 계산하여 기저장한다.First, the operating capacity of the reciprocating compressor is detected, and the stroke with the maximum capacity, that is, TDC = 0 is detected, and the stroke and power at the maximum capacity are calculated and stored in advance.

이후,상기 스트로크를 감소시키면서 파워를 계산하여 그 파워가 최대 용량에서의 80% 파워와 일치하면 그 80% 파워에서의 스트로크로 왕복동식 압축기의 운전 을 제어한다.Then, the power is calculated while reducing the stroke, and if the power coincides with 80% power at the maximum capacity, the operation of the reciprocating compressor is controlled by the stroke at the 80% power.

상술한 종래 왕복동식 압축기를 채용한 냉장고의 운전제어방법은, 왕복동식 압축기 운전시의 파워를 줄일 수 있으며 증발기와 냉장고내 온도 차이를 줄여서 전체 싸이클의 효율을 증가시키고, 아울러 왕복동식 압축기의 운전율을 높임으로써 단속 운전 초기 기동시 발생하는 손실을 방지하는 장점이 있다.The operation control method of the refrigerator employing the conventional reciprocating compressor described above can reduce the power during operation of the reciprocating compressor, increase the efficiency of the entire cycle by reducing the temperature difference between the evaporator and the refrigerator, and also increase the operation rate of the reciprocating compressor. By increasing, there is an advantage of preventing the loss occurring during the initial start of the intermittent operation.

그러나, 상술한 바와같이 왕복동식 압축기의 운전 용량 가변 운전 제어시, 모든 왕복동식 압축기에 대하여 일괄적으로 80%파워로 운전하는 방법은, 왕복동식 압축기마다 운전편차가 발생하므로 소비 전력이 최적화되지 않고, 이에 따라 운전편차가 큰 왕복동식 압축기의 경우에는 운전효율이 저하되는 문제점이 있다.However, as described above, when the operation capacity of the reciprocating compressor is controlled in a variable operation, the method of operating at 80% power for all the reciprocating compressors collectively does not optimize the power consumption because the driving deviation occurs for each reciprocating compressor. Accordingly, in the case of a reciprocating compressor having a large driving deviation, there is a problem in that operating efficiency is lowered.

본 발명은 상기와 같은 문제점을 해결하기 위하여 안출된 것으로, 왕복동식 압축기의 운전중에 소비전력이 최소가 되는 최적의 운전용량을 검출하고, 그 검출된 최적의 운전용량으로 용량 가변 운전을 수행함으로써, 소비전력을 최소화하도록 한 왕복동식 압축기를 채용한 냉장고의 용량가변 운전제어방법을 제공함에 그 목적이 있다.The present invention has been made to solve the above problems, by detecting the optimum operating capacity is the minimum power consumption during operation of the reciprocating compressor, and by performing the variable variable operation at the detected optimum operating capacity, It is an object of the present invention to provide a variable capacity operation control method of a refrigerator employing a reciprocating compressor to minimize power consumption.

상기와 같은 목적을 달성하기 위한 본 발명은, 왕복동식 압축기가 동작되면 TDC=0인 최대 용량으로 운전하다가, 냉장고 제어수단으로부터 용량가변 운전제어신호가 입력되면 그 최대 용량에서의 스트로크와 파워를 계산하여 저장하는 과정과;The present invention for achieving the above object, when the reciprocating compressor is operated to operate at the maximum capacity of TDC = 0, when the variable capacity operation control signal is input from the refrigerator control means calculates the stroke and power at the maximum capacity Storing by;

상기 최대 용량에서의 스트로크를 감소시켜, 기설정된 임계용량으로 왕복동 식 압축기를 운전하는 과정과;Reducing the stroke at the maximum capacity to drive a reciprocating compressor at a predetermined threshold capacity;

상기 임계 용량에서의 모터 전류와 모터전압을 검출하는 과정과;Detecting a motor current and a motor voltage at the threshold capacitance;

상기 모터전류와 모터전압으로 스트로크를 추정하고, 그 추정된 스트로크와 스트로크 지령치를 비교하여 그 비교결과에 근거하여 스트로크를 제어하는 과정과;Estimating the stroke based on the motor current and the motor voltage, comparing the estimated stroke with the stroke command value, and controlling the stroke based on the comparison result;

상기 왕복동식 압축기가 오프되면, 상기 모터전류와 모터전압을 이용하여 한 주기 동안의 소비전력을 계산하는 과정과;Calculating power consumption for one cycle by using the motor current and the motor voltage when the reciprocating compressor is turned off;

상기 소비전력을 이전 주기의 소비전력과 비교하고 그 비교결과에 근거하여 왕복동식 압축기의 임계용량을 가변하는 과정을 수행함을 특징으로 한다.And comparing the power consumption with the power consumption of the previous cycle and varying the critical capacity of the reciprocating compressor based on the comparison result.

이하, 본 발명 왕복동식 압축기를 채용한 냉장고의 용량가변 운전제어방법에 대한 작용과 효과를 첨부한 도면을 참조하여 상세히 설명한다.Hereinafter, with reference to the accompanying drawings, the operation and effects of the variable capacity operation control method of the refrigerator employing the reciprocating compressor of the present invention will be described in detail.

우선, 본 발명 왕복동식 압축기를 채용한 냉장고의 용량가변 운전제어방법이 적용되는 장치는 종래 도1과 동일하다.First, the apparatus to which the variable capacity operation control method of the refrigerator employing the reciprocating compressor of the present invention is applied is the same as that of FIG.

도3은 본 발명 왕복동식 압축기를 채용한 냉장고의 용량가변 운전제어방법에 대한 동작 흐름도이다.3 is an operation flowchart of a capacity variable operation control method of a refrigerator employing the reciprocating compressor according to the present invention.

도3에 도시한 바와같이 본 발명은, 왕복동식 압축기가 동작되면 TDC=0인 최대 용량으로 운전하다가, 냉장고 제어수단으로부터 용량가변 운전제어신호가 입력되면 그 최대 용량에서의 스트로크와 파워를 계산하여 저장하는 과정(SP10,SP11)과;상기 최대 용량에서의 스트로크를 감소시켜, 기설정된 임계용량으로 왕복동식 압축기를 운전하는 과정(SP12,SP13,SP14)과; 상기 임계 용량에서의 모터 전류와 모터전압을 검출하는 과정(SP15)과; 상기 모터전류와 모터전압으로 스트로크를 추정 하고, 그 추정된 스트로크와 스트로크 지령치를 비교하여 그 비교결과에 근거하여 스트로크를 제어하는 과정(SP16)과; 상기 왕복동식 압축기가 오프되면, 상기 모터전류와 모터전압을 이용하여 한 주기 동안의 소비전력을 계산하는 과정(SP17,SP18)과; 상기 소비전력을 이전 주기의 소비전력과 비교하고 그 비교결과에 근거하여 왕복동식 압축기의 임계용량을 가변하는 과정(SP18~SP21)으로 이루어지며, 이와같은 본 발명의 동작을 설명한다.As shown in FIG. 3, the present invention operates at the maximum capacity of TDC = 0 when the reciprocating compressor is operated, and calculates the stroke and power at the maximum capacity when the variable capacity operation control signal is input from the refrigerator control means. Storing (SP10, SP11); reducing the stroke at the maximum capacity, and operating the reciprocating compressor at a predetermined threshold capacity (SP12, SP13, SP14); Detecting a motor current and a motor voltage at the critical capacity (SP15); Estimating a stroke based on the motor current and the motor voltage, comparing the estimated stroke with a stroke command value, and controlling the stroke based on the comparison result (SP16); Calculating power consumption for one cycle using the motor current and the motor voltage when the reciprocating compressor is turned off (SP17, SP18); Comparing the power consumption with the power consumption of the previous cycle and varying the critical capacity of the reciprocating compressor based on the comparison result (SP18 to SP21), the operation of the present invention will be described.

먼저, 왕복동식 압축기를, TDC=0인 최대 용량으로 동작시키다가(SP10), 냉장고 제어수단(미도시)으로부터 용량가변 운전신호를 받게 되면 그 최대 용량에서의 스트로크와 파워를 검출하여 저장한다(SP11).First, the reciprocating compressor is operated at a maximum capacity of TDC = 0 (SP10), and when a capacity variable operation signal is received from a refrigerator control means (not shown), the stroke and power at the maximum capacity are detected and stored ( SP11).

이러한 상태에서, 상기 최대용량에서의 스트로크를 감소시키면서(SP12), 그 감소된 스트로크에서의 파워를, 기저장된 임계용량에서의 파워와 비교하고(SP13), 그 비교결과 감소된 스트로크에서의 파워가 임계용량에서의 파워가 일치하면 그 시점에서의 스트로크로 왕복동식 압축기를 동작시킨다(SP14).In this state, while reducing the stroke at the maximum capacity (SP12), the power at the reduced stroke is compared with the power at the stored critical capacity (SP13), and the comparison shows that the power at the reduced stroke If the power at the critical capacity is matched, the reciprocating compressor is operated with the stroke at that time (SP14).

그 다음, 상기 임계용량에서의 파워로 왕복동식 압축기를 운전시키면서, 그 왕복동식 압축기에 인가되는 전압과 전류를 검출하고(SP15), 그 전압과 전류를 이용하여 스트로크를 추정함과 아울러 파워를 계산한다(SP16). 이때 상기 추정된 스트로크는 현재 스트로크지령치와 비교하고 그 비교결과에 근거하여 스트로크를 가변한다.Then, while operating the reciprocating compressor at the power at the critical capacity, the voltage and current applied to the reciprocating compressor are detected (SP15), the stroke is estimated using the voltage and the current, and the power is calculated. (SP16) At this time, the estimated stroke is compared with the current stroke command value and the stroke is varied based on the comparison result.

이러한 상태에서, 상기 왕복동식 압축기가 오프되면(SP17), 상기 왕복동식 압축기의 온 싸이클 동안의 소비전력을 계산하는데(SP18), 즉 상기 파워와 온타임 을 이용하여 소비전력을 계산한다.In this state, when the reciprocating compressor is turned off (SP17), the power consumption is calculated during the on cycle of the reciprocating compressor (SP18), that is, the power consumption is calculated using the power and the on time.

그 다음, 상기에서 계산된 소비전력이, 다른 용량들에서의 소비전력보다 작은 값인지를 판단하여(SP19) 그 판단결과 상기 계산된 소비전력이 최소값이면 현재 싸이클의 용량을 임계용량으로 결정하여 왕복동식 압축기를 운전시키고(SP20), 상기 계산된 소비전력이 최소값이 아니면 상기 임계용량을 가변하여 상기 동작을 반복 수행하는데(SP21), 이때 상기 소비전력이 최소값이 아니면 임계용량을 일정 레벨만큼 감소시킨다.Then, it is determined whether the power consumption calculated above is a value smaller than the power consumption of other capacities (SP19). If the calculated power consumption is the minimum value, the capacity of the current cycle is determined as the threshold capacity and the round trip is determined. The compressor is operated (SP20), and if the calculated power consumption is not the minimum value, the threshold capacity is varied to repeat the operation (SP21). If the power consumption is not the minimum value, the threshold capacity is reduced by a predetermined level. .

여기서, 도4는 본원발명과 종래의 소비전력 차이를 보인 파형도로서, 본원발명에서 결정한 임계용량으로 구동하는 것이 종래 보다 소비전력면에서 우수한 것을 알 수 있다.Here, FIG. 4 is a waveform diagram showing the difference between the present invention and the conventional power consumption, and it can be seen that driving at the threshold capacity determined in the present invention is superior in terms of power consumption.

즉, 본 발명은, 왕복동식 압축기의 용량을 가변하면서 온/오프 싸이클에서의 소비전력이 최소가 되는 최적의 운전 용량을 검출하고, 그 최적의 운전용량으로 왕복동식 압축기를 운전시키도록 한 것이다. That is, the present invention is designed to detect the optimum operating capacity at which the power consumption in the on / off cycle is minimized while varying the capacity of the reciprocating compressor, and to operate the reciprocating compressor at the optimum operating capacity.

상기 본 발명의 상세한 설명에서 행해진 구체적인 실시 양태 또는 실시예는 어디까지나 본 발명의 기술 내용을 명확하게 하기 위한 것으로 이러한 구체적 실시예에 한정해서 협의로 해석해서는 안되며, 본 발명의 정신과 다음에 기재된 특허 청구의 범위내에서 여러가지 변경 실시가 가능한 것이다.Specific embodiments or examples made in the detailed description of the present invention are intended to clarify the technical contents of the present invention to the extent that they should not be construed as limited to these specific embodiments and should not be construed in consultation. Various changes can be made within the scope of.

이상에서 상세히 설명한 바와같이 본 발명은, 왕복동식 압축기의 용량을 가변하면서 온/오프 싸이클에서의 소비전력이 최소가 되는 최적의 운전용량을 검출하 고, 그 최적의 운전용량으로 왕복동식 압축기를 운전시킴으로써, 운전효율을 향상시키면서도 소비전력을 최소화하는 효과가 있다.As described in detail above, the present invention detects an optimum operating capacity that minimizes power consumption in on / off cycles while varying the capacity of the reciprocating compressor, and operates the reciprocating compressor at the optimum operating capacity. By doing so, there is an effect of minimizing power consumption while improving operating efficiency.

Claims (3)

왕복동식 압축기가 동작되면 TDC=0인 최대 용량으로 운전하다가, 냉장고 제어수단으로부터 용량가변 운전제어신호가 입력되면 그 최대 용량에서의 스트로크와 파워를 계산하여 저장하는 과정과;Operating at a maximum capacity of TDC = 0 when the reciprocating compressor is operated, and calculating and storing stroke and power at the maximum capacity when a variable capacity operation control signal is input from the refrigerator control means; 상기 최대 용량에서의 스트로크를 감소시켜, 기설정된 임계용량으로 왕복동식 압축기를 운전하는 과정과;Reducing the stroke at the maximum capacity to drive a reciprocating compressor at a predetermined threshold capacity; 상기 임계 용량에서의 모터 전류와 모터전압을 검출하는 과정과;Detecting a motor current and a motor voltage at the threshold capacitance; 상기 모터전류와 모터전압으로 스트로크를 추정하고, 그 추정된 스트로크와 스트로크 지령치를 비교하여 그 비교결과에 근거하여 스트로크를 제어하는 과정과;Estimating the stroke based on the motor current and the motor voltage, comparing the estimated stroke with the stroke command value, and controlling the stroke based on the comparison result; 상기 왕복동식 압축기가 오프되면, 상기 모터전류와 모터전압을 이용하여 한 주기 동안의 소비전력을 계산하는 과정과;Calculating power consumption for one cycle by using the motor current and the motor voltage when the reciprocating compressor is turned off; 상기 소비전력을 이전 주기들의 소비전력과 비교하고 그 비교결과에 근거하여 왕복동식 압축기의 임계용량을 가변하는 과정을 수행함을 특징으로 하는 왕복동식 압축기를 채용한 냉장고의 용량가변 운전제어방법.And varying the critical capacity of the reciprocating compressor based on the result of the comparison and comparing the power consumption with the power consumption of the previous cycles. 제1 항에 있어서, 임계용량을 가변하는 과정은,The method of claim 1, wherein varying the threshold dose comprises: 소비 전력이 최소값이면 현재의 임계용량으로 왕복동식 압축기를 운전시키는 단계와; Operating a reciprocating compressor at a current threshold capacity if the power consumption is a minimum; 소비전력이 최소값이 아니면 임계용량을 일정 레벨만큼 감소시킨 다음, 임계 용량을 가변하는 동작을 반복 실행하는 단계를 포함하는 것을 특징으로 하는 왕복동식 압축기를 채용한 냉장고의 용량가변 운전제어방법.And if the power consumption is not the minimum value, reducing the threshold capacity by a predetermined level, and then repeating the operation of varying the threshold capacity. 제1 항에 있어서, 임계용량은,The method of claim 1, wherein the threshold dose, 실험에 의해, 다수의 왕복동식 압축기의 소비전력이 최소가 되는 용량을 평균한 값으로 기설정되는 것을 특징으로 하는 왕복동식 압축기를 채용한 냉장고의 용량가변 운전제어방법.Experimentally, a variable capacity operation control method of a refrigerator employing a reciprocating compressor, characterized in that the power consumption of the reciprocating compressor is set to an average value of the minimum capacity.
KR1020050028671A 2005-04-06 2005-04-06 Capacity variable operation control method of refrigerator adopting reciprocating compressor KR100815424B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020050028671A KR100815424B1 (en) 2005-04-06 2005-04-06 Capacity variable operation control method of refrigerator adopting reciprocating compressor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020050028671A KR100815424B1 (en) 2005-04-06 2005-04-06 Capacity variable operation control method of refrigerator adopting reciprocating compressor

Publications (2)

Publication Number Publication Date
KR20060106192A true KR20060106192A (en) 2006-10-12
KR100815424B1 KR100815424B1 (en) 2008-03-20

Family

ID=37626942

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020050028671A KR100815424B1 (en) 2005-04-06 2005-04-06 Capacity variable operation control method of refrigerator adopting reciprocating compressor

Country Status (1)

Country Link
KR (1) KR100815424B1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107061250A (en) * 2017-05-31 2017-08-18 青岛海尔智能技术研发有限公司 The automatic control method for changing linear compressor volume of cylinder

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100371197B1 (en) * 2001-04-24 2003-02-06 엘지전자 주식회사 Driving control apparatus for refrigerator using reciprocating compressor

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107061250A (en) * 2017-05-31 2017-08-18 青岛海尔智能技术研发有限公司 The automatic control method for changing linear compressor volume of cylinder
CN107061250B (en) * 2017-05-31 2020-04-21 青岛海尔智能技术研发有限公司 Control method for automatically changing volume of cylinder of linear compressor

Also Published As

Publication number Publication date
KR100815424B1 (en) 2008-03-20

Similar Documents

Publication Publication Date Title
JP5122758B2 (en) Operation control apparatus and method for reciprocating compressor
KR100408068B1 (en) Stroke comtrol apparatus for reciprocating compressor
KR100739165B1 (en) Operation control device and method of linear compressor
WO2007123323A1 (en) Driving control apparatus and method for linear compressor
KR100556776B1 (en) Operation Control System and Method of Reciprocating Compressor
KR100451224B1 (en) Drive control method for reciprocating compressor
KR100690674B1 (en) Operation control device of refrigerator with two reciprocating compressors
KR20060081439A (en) Drive control device and method of variable displacement reciprocating compressor
KR100815424B1 (en) Capacity variable operation control method of refrigerator adopting reciprocating compressor
KR100608686B1 (en) Variable displacement reciprocating compressor and its control method
KR100608673B1 (en) Operation Control System and Method of Reciprocating Compressor
KR100690664B1 (en) Operation control method of reciprocating compressor
KR100393807B1 (en) Driving comtrol apparatus for reciprocating compressor
KR20030063722A (en) Driving control apparatus and method for reciprocating compressor
KR100480375B1 (en) Driving control apparatus for reciprocating compressor
KR100393803B1 (en) Driving comtrol apparatus for reciprocating compressor
KR100374842B1 (en) Driving control method of refrigerator using reciprocating compressor
KR100371198B1 (en) Driving control apparatus for refrigerator using reciprocating compressor
KR100371197B1 (en) Driving control apparatus for refrigerator using reciprocating compressor
KR100414093B1 (en) Velocity control apparatus for reciprocating compressor
KR100451223B1 (en) Drive control method for reciprocating compressor
KR100386283B1 (en) Driving control apparatus for reciprocating compressor
KR100608669B1 (en) Operation control device of reciprocating compressor
KR100414117B1 (en) Driving control method for reciprocating compressor
KR100371195B1 (en) Driving control method of refrigerator using reciprocating compressor

Legal Events

Date Code Title Description
A201 Request for examination
PA0109 Patent application

Patent event code: PA01091R01D

Comment text: Patent Application

Patent event date: 20050406

PA0201 Request for examination
E902 Notification of reason for refusal
PE0902 Notice of grounds for rejection

Comment text: Notification of reason for refusal

Patent event date: 20060824

Patent event code: PE09021S01D

PG1501 Laying open of application
AMND Amendment
E90F Notification of reason for final refusal
PE0902 Notice of grounds for rejection

Comment text: Final Notice of Reason for Refusal

Patent event date: 20070215

Patent event code: PE09021S02D

AMND Amendment
E601 Decision to refuse application
E801 Decision on dismissal of amendment
PE0601 Decision on rejection of patent

Patent event date: 20071019

Comment text: Decision to Refuse Application

Patent event code: PE06012S01D

Patent event date: 20070215

Comment text: Final Notice of Reason for Refusal

Patent event code: PE06011S02I

Patent event date: 20060824

Comment text: Notification of reason for refusal

Patent event code: PE06011S01I

PE0801 Dismissal of amendment

Patent event code: PE08012E01D

Comment text: Decision on Dismissal of Amendment

Patent event date: 20071019

Patent event code: PE08011R01I

Comment text: Amendment to Specification, etc.

Patent event date: 20070716

Patent event code: PE08011R01I

Comment text: Amendment to Specification, etc.

Patent event date: 20061226

J201 Request for trial against refusal decision
PJ0201 Trial against decision of rejection

Patent event date: 20071120

Comment text: Request for Trial against Decision on Refusal

Patent event code: PJ02012R01D

Patent event date: 20071019

Comment text: Decision to Refuse Application

Patent event code: PJ02011S01I

Appeal kind category: Appeal against decision to decline refusal

Decision date: 20080110

Appeal identifier: 2007101011874

Request date: 20071120

AMND Amendment
PB0901 Examination by re-examination before a trial

Comment text: Amendment to Specification, etc.

Patent event date: 20071218

Patent event code: PB09011R02I

Comment text: Request for Trial against Decision on Refusal

Patent event date: 20071120

Patent event code: PB09011R01I

Comment text: Amendment to Specification, etc.

Patent event date: 20070716

Patent event code: PB09011R02I

Comment text: Amendment to Specification, etc.

Patent event date: 20061226

Patent event code: PB09011R02I

B701 Decision to grant
PB0701 Decision of registration after re-examination before a trial

Patent event date: 20080110

Comment text: Decision to Grant Registration

Patent event code: PB07012S01D

Patent event date: 20071227

Comment text: Transfer of Trial File for Re-examination before a Trial

Patent event code: PB07011S01I

GRNT Written decision to grant
PR0701 Registration of establishment

Comment text: Registration of Establishment

Patent event date: 20080314

Patent event code: PR07011E01D

PR1002 Payment of registration fee

Payment date: 20080317

End annual number: 3

Start annual number: 1

PG1601 Publication of registration
PR1001 Payment of annual fee

Payment date: 20101223

Start annual number: 4

End annual number: 4

PR1001 Payment of annual fee

Payment date: 20111220

Start annual number: 5

End annual number: 5

FPAY Annual fee payment

Payment date: 20130226

Year of fee payment: 6

PR1001 Payment of annual fee

Payment date: 20130226

Start annual number: 6

End annual number: 6

FPAY Annual fee payment

Payment date: 20140224

Year of fee payment: 7

PR1001 Payment of annual fee

Payment date: 20140224

Start annual number: 7

End annual number: 7

FPAY Annual fee payment

Payment date: 20150224

Year of fee payment: 8

PR1001 Payment of annual fee

Payment date: 20150224

Start annual number: 8

End annual number: 8

FPAY Annual fee payment

Payment date: 20160224

Year of fee payment: 9

PR1001 Payment of annual fee

Payment date: 20160224

Start annual number: 9

End annual number: 9

FPAY Annual fee payment

Payment date: 20170214

Year of fee payment: 10

PR1001 Payment of annual fee

Payment date: 20170214

Start annual number: 10

End annual number: 10

FPAY Annual fee payment

Payment date: 20190214

Year of fee payment: 12

PR1001 Payment of annual fee

Payment date: 20190214

Start annual number: 12

End annual number: 12

PC1903 Unpaid annual fee

Termination category: Default of registration fee

Termination date: 20211225