EP1373728A1 - Antriebsregelung für einen kolbenkompressor - Google Patents

Antriebsregelung für einen kolbenkompressor

Info

Publication number
EP1373728A1
EP1373728A1 EP01934583A EP01934583A EP1373728A1 EP 1373728 A1 EP1373728 A1 EP 1373728A1 EP 01934583 A EP01934583 A EP 01934583A EP 01934583 A EP01934583 A EP 01934583A EP 1373728 A1 EP1373728 A1 EP 1373728A1
Authority
EP
European Patent Office
Prior art keywords
stroke
motor
voltage
reciprocating
inductance
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.)
Granted
Application number
EP01934583A
Other languages
English (en)
French (fr)
Other versions
EP1373728B1 (de
EP1373728A4 (de
Inventor
Jae-Yoo Yoo
Gye-Young Song
Kyung-Bum Hur
Hyeong-Kook Lee
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
LG Electronics Inc
Original Assignee
LG Electronics Inc
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 LG Electronics Inc filed Critical LG Electronics Inc
Publication of EP1373728A1 publication Critical patent/EP1373728A1/de
Publication of EP1373728A4 publication Critical patent/EP1373728A4/de
Application granted granted Critical
Publication of EP1373728B1 publication Critical patent/EP1373728B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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
    • 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
    • F04B35/045—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 using solenoids

Definitions

  • the present invention relates a driving controlling apparatus of a reciprocating compressor using resonance, and more particularly, to a driving controlling apparatus of a reciprocating compressor using resonance with high current counteracting characteristics by offsetting an inductance value of a coil wound inside a motor by employing a capacitor.
  • the rotor can be stopped at a certain position, and by controlling a phase of an input pulse signal applied to the switching device by taking a maximum inductance as a starting point, a reverse-rotational force can be generated
  • the reciprocating compressor is adopted for use to electric products requiring a direction control of the motor.
  • a compression ratio can be varied by a voltage applied to the motor, and accordingly, a cooling force can be varied according to a user's intention.
  • Figure 1 is a block diagram showing the construction of a driving controlling apparatus of a general reciprocating compressor.
  • the general reciprocating compressor includes: a reciprocating compressing unit (L.CO P) for varying a stroke by piston's movement to control a cooling force by a voltage applied to an internal motor according to a stroke command value; a voltage detector 30 for detecting a voltage generated at the reciprocating compressing unit (L.COMP) as the stroke is increased by the applied voltage; a current detector 20 for detecting a current applied to the reciprocating compressing unit (L.COMP) as the stroke is increased by the applied voltage; a microcomputer 40 for calculating a stroke with the voltage and the current detected by the voltage detector 30 and the current detector 20, comparing the stroke with the stroke command value and outputting a corresponding switching control signal; and an electric circuit unit 10 for switching off an AC power with a t ⁇ ' ac according to the switching control signal of the microcomputer 40 to apply a voltage to the reciprocating compressing unit (L.COMP).
  • a reciprocating compressing unit L.CO P
  • a voltage detector 30 for detecting a voltage generated at the reciproc
  • the piston is moved by the voltage applied according to the stroke command value set by a user, and accordingly, a stroke is varied to control a cooling force.
  • the microcomputer 40 calculates a stroke by using the voltage and current detected by the voltage detector 30 and the current detector 20.
  • the stroke is compared with the stroke command value to output a corresponding switching control signal.
  • the microcomputer 40 outputs a switching control signal for lengthening the ON period of the triac (Tr1) in order to increase the voltage applied to the reciprocating compressing unit (L.COMP).
  • the microcomputer 40 If, however, the calculated stroke is greater than the stroke command value, the microcomputer 40 outputs a switching control signal for shortening
  • V L — + R 'i + a - S (1 ) dt
  • ⁇ indicates a motor constant for converting an electric force to a
  • S indicates a stroke
  • 'R' is a internal resistance of the motor
  • 'L' indicates an inductance of the motor (M) itself.
  • the inductance voltage (L — ) is almost similar to a back electromotive dt
  • the voltage (V) applied to the motor (M) is determined by
  • the motor should be increased.
  • the inductance (L) value of the coil wound on the motor (M) itself should be small, and the inductance (L) value of the coil becomes small as the size of the motor (magnet) is increased.
  • the size of the mover the thickness of the magnet
  • an air gap is increased, causing a problem that the overall size and cost of the reciprocating compressor is increased.
  • the size of the mover (the thickness of the magnet) is reduced, the inductance (L) value of the coil wound at the motor (M) is increased. Then, the current according to the voltage value for the stroke control of the reciprocating compressor would slowly work, so that the stroke is not smoothly controlled.
  • an object of the present invention is to provide a driving controlling apparatus of a reciprocating compressor which has an excellent current counteracting capacity by offsetting a quality which slows current operation characteristics as an inductance value of a coil wound inside a motor is increased by employing a capacitor.
  • a driving controlling apparatus of a reciprocating compressor having a reciprocating compressing unit controlling a cooling force by varying a stroke according to a piston's movement by a voltage applied to an internal motor according to a stroke command value and an electric circuit unit for switching an AC power with a triac and applying it to the motor of the reciprocating compressing unit, wherein the electric circuit unit includes a capacitor for offsetting an inductance of a coil wound at a motor itself of the reciprocating compressing unit.
  • Figure 1 is a block diagram showing the construction of a driving controlling apparatus of a conventional reciprocating compressor.
  • Figure 2 is a block diagram showing the construction of a driving controlling apparatus of a reciprocating compressor using a resonance according to the present invnetion.
  • Figure 2 is a block diagram showing the construction of a driving controlling apparatus of a reciprocating compressor using a resonance according to the present invnetion.
  • a driving controlling apparatus of a reciprocating compressor includes: a reciprocating compressing unit (L.COMP) for varying a stroke by piston's movement to control a cooling force by a voltage applied to an internal motor according to a stroke command value; a voltage detector 30 for detecting a voltage generated at the reciprocating compressing unit (L.COMP) as the stroke is increased by the applied voltage; a current detector 20 for detecting a current applied to the reciprocating compressing unit (L.COMP) as the stroke is increased by the applied voltage; a microcomputer
  • an electric circuit unit 10 having a capacitor (C) to offset an inductance of a coil (L) wound at the motor (M) itself of the reciprocating compressing unit (L.COMP) and switching off an AC power with a triac according to the switching control signal of the microcomputer 40 to apply a voltage to the reciprocating compressing unit (L.COMP).
  • the piston is moved by an applied voltage according to a stroke command value set by a user, and accordingly, a stroke is varied to control a cooling force.
  • the microcomputer 40 calculates a stroke by using the voltage
  • the stroke is compared with the stroke command value to output a corresponding switching control signal.
  • the capacitor (C) is connected in series to the motor (M) to offset an inductance (L) of a coil wound at the motor (M), which will now be described in detail.
  • a capacitance can be set by the following equation (3):
  • the capacitance (C) and the inductance (L) are previously set with values causing a resonance.
  • V R - i + a - S (4)

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Control Of Positive-Displacement Pumps (AREA)
  • Control Of Ac Motors In General (AREA)
  • Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
  • Compressor (AREA)
  • Reciprocating, Oscillating Or Vibrating Motors (AREA)
EP01934583A 2001-03-26 2001-05-24 Antriebsregelung für einen kolbenkompressor Expired - Lifetime EP1373728B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
KR10-2001-0015634A KR100396774B1 (ko) 2001-03-26 2001-03-26 왕복동식 압축기의 운전제어장치
KR2001015634 2001-03-26
PCT/KR2001/000867 WO2002077453A1 (en) 2001-03-26 2001-05-24 Driving controlling apparatus for reciprocating compressor

Publications (3)

Publication Number Publication Date
EP1373728A1 true EP1373728A1 (de) 2004-01-02
EP1373728A4 EP1373728A4 (de) 2004-06-23
EP1373728B1 EP1373728B1 (de) 2005-01-12

Family

ID=19707404

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01934583A Expired - Lifetime EP1373728B1 (de) 2001-03-26 2001-05-24 Antriebsregelung für einen kolbenkompressor

Country Status (9)

Country Link
US (1) US20030143080A1 (de)
EP (1) EP1373728B1 (de)
JP (1) JP3917526B2 (de)
KR (1) KR100396774B1 (de)
CN (1) CN1430702A (de)
AT (1) ATE287043T1 (de)
BR (1) BR0111190A (de)
DE (1) DE60108427T2 (de)
WO (1) WO2002077453A1 (de)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100474330B1 (ko) * 2002-05-13 2005-03-08 엘지전자 주식회사 냉장고용 왕복동식 압축기의 운전제어장치
CN1735749A (zh) * 2002-11-19 2006-02-15 巴西压缩机股份有限公司 活塞运动的控制系统
KR100764795B1 (ko) * 2002-12-20 2007-10-11 엘지전자 주식회사 냉장고용 용량 가변형 왕복동식 압축기의 구동장치 및 방법
KR100524726B1 (ko) * 2003-08-14 2005-10-31 엘지전자 주식회사 왕복동식 압축기의 구동회로
KR100595550B1 (ko) * 2004-02-20 2006-07-03 엘지전자 주식회사 왕복동식 압축기를 채용한 냉장고의 압축기 구동장치
KR100608671B1 (ko) 2004-06-03 2006-08-08 엘지전자 주식회사 라인 스타트형 왕복동식 압축기의 운전제어장치 및 방법
EP1635060B1 (de) * 2004-09-11 2012-09-19 LG Electronics, Inc. Vorrichtung und Verfahren zur Kompressorregelung
KR100608690B1 (ko) * 2004-09-11 2006-08-09 엘지전자 주식회사 왕복동식 압축기의 운전제어장치 및 방법
KR100677530B1 (ko) * 2004-11-26 2007-02-02 엘지전자 주식회사 왕복동식 압축기의 운전제어장치 및 방법
US8156751B2 (en) * 2005-05-24 2012-04-17 Emerson Climate Technologies, Inc. Control and protection system for a variable capacity compressor
KR100652607B1 (ko) * 2005-10-24 2006-12-01 엘지전자 주식회사 왕복동식 압축기의 운전 제어 장치 및 그 방법
KR100774470B1 (ko) * 2006-01-16 2007-11-08 엘지전자 주식회사 왕복동식 압축기의 운전제어장치 및 방법
KR100756719B1 (ko) * 2006-02-02 2007-09-07 엘지전자 주식회사 리니어 압축기의 제어장치
KR100756720B1 (ko) * 2006-02-02 2007-09-07 엘지전자 주식회사 리니어 압축기의 제어장치
CN101294556A (zh) * 2007-04-28 2008-10-29 德昌电机股份有限公司 螺线管泵
KR101190069B1 (ko) 2011-05-23 2012-10-12 엘지전자 주식회사 압축기 제어 장치

Citations (2)

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Publication number Priority date Publication date Assignee Title
JPH09112439A (ja) * 1995-10-20 1997-05-02 Sanyo Electric Co Ltd リニアコンプレッサの駆動装置
US6176683B1 (en) * 1999-04-26 2001-01-23 Lg Electronics, Inc. Output control apparatus for linear compressor and method of the same

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US4302946A (en) * 1979-02-02 1981-12-01 Tyler Refrigeration Corporation Refrigeration system using air defrost
DE3021873C2 (de) * 1980-06-11 1982-11-25 Heinrich Dipl.-Ing. 6368 Bad Vilbel Dölz Elektrisch angetriebener Schwingverdichter
US4463304A (en) * 1982-07-26 1984-07-31 Franklin Electric Co., Inc. High voltage motor control circuit
US4481451A (en) * 1982-08-20 1984-11-06 Johnson Service Company Electronically controlled positioner for pneumatic actuators
JPS60128894A (ja) * 1983-12-16 1985-07-09 Matsushita Electric Ind Co Ltd コンデンサ運転形誘導電動機
US5074003A (en) * 1989-09-11 1991-12-24 Whirlpool Corporation Automatic washer with controlled stroke parameter
US5589753A (en) * 1994-04-11 1996-12-31 Andrew S. Kadah Rate effect motor start circuit
US5681151A (en) * 1996-03-18 1997-10-28 Devilbiss Air Power Company Motor driven air compressor having a combined vent valve and check valve assembly
KR100273444B1 (ko) * 1998-10-09 2000-12-15 구자홍 리니어 컴프레샤의 브레이크 다운 방지회로 및 방법
DE19952578B4 (de) * 1998-11-04 2005-11-24 Lg Electronics Inc. Vorrichtung und Verfahren zum Steuern eines Linearverdichters
KR100273455B1 (ko) * 1998-12-17 2000-12-15 구자홍 리니어 컴프레샤의 속도 센서리스 제어방법
KR100273458B1 (ko) * 1998-12-17 2000-12-15 구자홍 리니어 컴프레샤의 속도 센서리스 제어에 의한 탑 클리어런스볼륨 제어장치 및 방법
US6264432B1 (en) * 1999-09-01 2001-07-24 Liquid Metronics Incorporated Method and apparatus for controlling a pump

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09112439A (ja) * 1995-10-20 1997-05-02 Sanyo Electric Co Ltd リニアコンプレッサの駆動装置
US6176683B1 (en) * 1999-04-26 2001-01-23 Lg Electronics, Inc. Output control apparatus for linear compressor and method of the same

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 1997, no. 09, 30 September 1997 (1997-09-30) & JP 09 112439 A (SANYO ELECTRIC CO LTD), 2 May 1997 (1997-05-02) *
See also references of WO02077453A1 *

Also Published As

Publication number Publication date
CN1430702A (zh) 2003-07-16
DE60108427T2 (de) 2006-01-05
US20030143080A1 (en) 2003-07-31
ATE287043T1 (de) 2005-01-15
EP1373728B1 (de) 2005-01-12
BR0111190A (pt) 2003-04-08
JP2004519579A (ja) 2004-07-02
KR20020075565A (ko) 2002-10-05
DE60108427D1 (de) 2005-02-17
KR100396774B1 (ko) 2003-09-03
EP1373728A4 (de) 2004-06-23
WO2002077453A1 (en) 2002-10-03
JP3917526B2 (ja) 2007-05-23

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