US20030143080A1 - Driving controlling apparatus for reciprocating compressor - Google Patents
Driving controlling apparatus for reciprocating compressor Download PDFInfo
- Publication number
- US20030143080A1 US20030143080A1 US10/276,913 US27691302A US2003143080A1 US 20030143080 A1 US20030143080 A1 US 20030143080A1 US 27691302 A US27691302 A US 27691302A US 2003143080 A1 US2003143080 A1 US 2003143080A1
- Authority
- US
- United States
- 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.)
- Abandoned
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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
-
- 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.
- FIG. 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.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 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 triac 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.COMP
- a voltage detector 30 for detecting a voltage generated at the reciprocating compressing
- 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 (Tr 1 ) 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 the ON period of the triac (Tr 1 ) to reduce the voltage applied to the reciprocating compressing unit (L.COMP).
- ⁇ indicates a motor constant for converting an electric force to a mechanic force
- ⁇ overscore (S) ⁇ indicates a stroke
- R is a internal resistance of the motor
- L indicates an inductance of the motor (M) itself.
- [0019] is almost similar to a back electromotive force ( ⁇ overscore (S) ⁇ ), and the voltage by the internal resistance (R) can be negligible compared with the back electromotive force ( ⁇ overscore (S) ⁇ ).
- the voltage (V) applied to the motor (M) is determined by sum of the inductance voltage ( L ⁇ ⁇ ⁇ i ⁇ t )
- 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.
- 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.
- FIG. 1 is a block diagram showing the construction of a driving controlling apparatus of a conventional reciprocating compressor
- FIG. 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.
- FIG. 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 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 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
- 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 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 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.
- V L ⁇ ⁇ ⁇ i ⁇ t + 1 C ⁇ ⁇ i ⁇ ⁇ t + R ⁇ i + ⁇ ⁇ S -> ( 2 )
- the applied voltage (V) has the similar size to the back electromotive force ( ⁇ overscore (S) ⁇ ) as the inductance voltage ( L ⁇ ⁇ ⁇ i ⁇ t )
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)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR2001/15634 | 2001-03-26 | ||
KR10-2001-0015634A KR100396774B1 (ko) | 2001-03-26 | 2001-03-26 | 왕복동식 압축기의 운전제어장치 |
Publications (1)
Publication Number | Publication Date |
---|---|
US20030143080A1 true US20030143080A1 (en) | 2003-07-31 |
Family
ID=19707404
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/276,913 Abandoned US20030143080A1 (en) | 2001-03-26 | 2001-05-24 | Driving controlling apparatus for reciprocating compressor |
Country Status (9)
Country | Link |
---|---|
US (1) | US20030143080A1 (fr) |
EP (1) | EP1373728B1 (fr) |
JP (1) | JP3917526B2 (fr) |
KR (1) | KR100396774B1 (fr) |
CN (1) | CN1430702A (fr) |
AT (1) | ATE287043T1 (fr) |
BR (1) | BR0111190A (fr) |
DE (1) | DE60108427T2 (fr) |
WO (1) | WO2002077453A1 (fr) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20060056980A1 (en) * | 2004-09-11 | 2006-03-16 | Lg Electronics Inc. | Apparatus and method for controlling operation of compressor |
US20060056979A1 (en) * | 2004-09-11 | 2006-03-16 | Lg Electronics Inc. | Apparatus and method for controlling operation of compressor |
US20060140777A1 (en) * | 2002-11-19 | 2006-06-29 | Egidio Berwanger | Control system for the movement of a piston |
US20080226465A1 (en) * | 2005-10-24 | 2008-09-18 | Hyeung-Ju Kim | Operation Controlling Apparatus for Reciprocating Compressor and Method Thereof |
US20090047138A1 (en) * | 2006-01-16 | 2009-02-19 | Jae-Yoo Yoo | Apparatus and Method For Controlling Operation of Linear Compressor |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100474330B1 (ko) * | 2002-05-13 | 2005-03-08 | 엘지전자 주식회사 | 냉장고용 왕복동식 압축기의 운전제어장치 |
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 |
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 |
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 (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4302946A (en) * | 1979-02-02 | 1981-12-01 | Tyler Refrigeration Corporation | Refrigeration system using air defrost |
US4463304A (en) * | 1982-07-26 | 1984-07-31 | Franklin Electric Co., Inc. | High voltage motor control circuit |
US4474537A (en) * | 1980-06-11 | 1984-10-02 | Doelz Heinrich | Oscillating compressor |
US4481451A (en) * | 1982-08-20 | 1984-11-06 | Johnson Service Company | Electronically controlled positioner for pneumatic actuators |
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 |
US6176683B1 (en) * | 1999-04-26 | 2001-01-23 | Lg Electronics, Inc. | Output control apparatus for linear compressor and method of the same |
US6264432B1 (en) * | 1999-09-01 | 2001-07-24 | Liquid Metronics Incorporated | Method and apparatus for controlling a pump |
US6289680B1 (en) * | 1998-11-04 | 2001-09-18 | Lg Electronics, Inc. | Apparatus for controlling linear compressor and method thereof |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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 |
JP3869481B2 (ja) * | 1995-10-20 | 2007-01-17 | 三洋電機株式会社 | リニアコンプレッサの駆動装置 |
KR100273444B1 (ko) * | 1998-10-09 | 2000-12-15 | 구자홍 | 리니어 컴프레샤의 브레이크 다운 방지회로 및 방법 |
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 |
-
2001
- 2001-03-26 KR KR10-2001-0015634A patent/KR100396774B1/ko active IP Right Grant
- 2001-05-24 AT AT01934583T patent/ATE287043T1/de not_active IP Right Cessation
- 2001-05-24 US US10/276,913 patent/US20030143080A1/en not_active Abandoned
- 2001-05-24 BR BR0111190-6A patent/BR0111190A/pt not_active Application Discontinuation
- 2001-05-24 WO PCT/KR2001/000867 patent/WO2002077453A1/fr active IP Right Grant
- 2001-05-24 DE DE60108427T patent/DE60108427T2/de not_active Expired - Lifetime
- 2001-05-24 CN CN01810073A patent/CN1430702A/zh active Pending
- 2001-05-24 EP EP01934583A patent/EP1373728B1/fr not_active Expired - Lifetime
- 2001-05-24 JP JP2002575472A patent/JP3917526B2/ja not_active Expired - Fee Related
Patent Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4302946A (en) * | 1979-02-02 | 1981-12-01 | Tyler Refrigeration Corporation | Refrigeration system using air defrost |
US4474537A (en) * | 1980-06-11 | 1984-10-02 | Doelz Heinrich | Oscillating compressor |
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 |
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 |
US6289680B1 (en) * | 1998-11-04 | 2001-09-18 | Lg Electronics, Inc. | Apparatus for controlling linear compressor and method thereof |
US6176683B1 (en) * | 1999-04-26 | 2001-01-23 | Lg Electronics, Inc. | Output control apparatus for linear compressor and method of the same |
US6264432B1 (en) * | 1999-09-01 | 2001-07-24 | Liquid Metronics Incorporated | Method and apparatus for controlling a pump |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20060140777A1 (en) * | 2002-11-19 | 2006-06-29 | Egidio Berwanger | Control system for the movement of a piston |
US20060056980A1 (en) * | 2004-09-11 | 2006-03-16 | Lg Electronics Inc. | Apparatus and method for controlling operation of compressor |
US20060056979A1 (en) * | 2004-09-11 | 2006-03-16 | Lg Electronics Inc. | Apparatus and method for controlling operation of compressor |
US7520730B2 (en) * | 2004-09-11 | 2009-04-21 | Lg Electronics Inc. | Apparatus and method for controlling operation of compressor |
US7628591B2 (en) * | 2004-09-11 | 2009-12-08 | Lg Electronics Inc. | Apparatus and method for controlling operation of compressor |
US20080226465A1 (en) * | 2005-10-24 | 2008-09-18 | Hyeung-Ju Kim | Operation Controlling Apparatus for Reciprocating Compressor and Method Thereof |
US8221090B2 (en) * | 2005-10-24 | 2012-07-17 | Lg Electronics Inc. | Reciprocating compressor stroke control by compensating motor inductance influences |
US20090047138A1 (en) * | 2006-01-16 | 2009-02-19 | Jae-Yoo Yoo | Apparatus and Method For Controlling Operation of Linear Compressor |
US8109736B2 (en) * | 2006-01-16 | 2012-02-07 | Lg Electronics Inc. | Apparatus and method for controlling operation of a linear compressor using a phase difference inflection point detecting unit |
Also Published As
Publication number | Publication date |
---|---|
BR0111190A (pt) | 2003-04-08 |
JP3917526B2 (ja) | 2007-05-23 |
ATE287043T1 (de) | 2005-01-15 |
DE60108427T2 (de) | 2006-01-05 |
DE60108427D1 (de) | 2005-02-17 |
WO2002077453A1 (fr) | 2002-10-03 |
JP2004519579A (ja) | 2004-07-02 |
KR100396774B1 (ko) | 2003-09-03 |
EP1373728A1 (fr) | 2004-01-02 |
EP1373728B1 (fr) | 2005-01-12 |
KR20020075565A (ko) | 2002-10-05 |
EP1373728A4 (fr) | 2004-06-23 |
CN1430702A (zh) | 2003-07-16 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: LG ELECTRONICS INC., KOREA, REPUBLIC OF Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:YOO, JAE-YOO;SONG, GYE-YOUNG;HUR, KYUNG-BUM;AND OTHERS;REEL/FRAME:013866/0868 Effective date: 20021111 |
|
STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |