WO2002077453A1 - Driving controlling apparatus for reciprocating compressor - Google Patents
Driving controlling apparatus for reciprocating compressor Download PDFInfo
- Publication number
- WO2002077453A1 WO2002077453A1 PCT/KR2001/000867 KR0100867W WO02077453A1 WO 2002077453 A1 WO2002077453 A1 WO 2002077453A1 KR 0100867 W KR0100867 W KR 0100867W WO 02077453 A1 WO02077453 A1 WO 02077453A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- stroke
- motor
- voltage
- reciprocating
- inductance
- Prior art date
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)
Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2002575472A JP3917526B2 (en) | 2001-03-26 | 2001-05-24 | Operation control device for reciprocating compressor |
BR0111190-6A BR0111190A (en) | 2001-03-26 | 2001-05-24 | Alternating compressor drive control device |
AT01934583T ATE287043T1 (en) | 2001-03-26 | 2001-05-24 | DRIVE CONTROL FOR A PISTON COMPRESSOR |
EP01934583A EP1373728B1 (en) | 2001-03-26 | 2001-05-24 | Driving controlling apparatus for reciprocating compressor |
DE60108427T DE60108427T2 (en) | 2001-03-26 | 2001-05-24 | DRIVE CONTROL FOR A PISTON COMPRESSOR |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR2001/15634 | 2001-03-26 | ||
KR10-2001-0015634A KR100396774B1 (en) | 2001-03-26 | 2001-03-26 | Driving comtrol apparatus for reciprocating compressor |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2002077453A1 true WO2002077453A1 (en) | 2002-10-03 |
Family
ID=19707404
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/KR2001/000867 WO2002077453A1 (en) | 2001-03-26 | 2001-05-24 | Driving controlling apparatus for reciprocating compressor |
Country Status (9)
Country | Link |
---|---|
US (1) | US20030143080A1 (en) |
EP (1) | EP1373728B1 (en) |
JP (1) | JP3917526B2 (en) |
KR (1) | KR100396774B1 (en) |
CN (1) | CN1430702A (en) |
AT (1) | ATE287043T1 (en) |
BR (1) | BR0111190A (en) |
DE (1) | DE60108427T2 (en) |
WO (1) | WO2002077453A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2004046550A1 (en) * | 2002-11-19 | 2004-06-03 | Empresa Brasileira De Compressores S.A.-Embraco | A control system for the movement of a piston |
EP1985857A2 (en) * | 2007-04-28 | 2008-10-29 | Johnson Electric S.A. | Solenoid pump |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100474330B1 (en) * | 2002-05-13 | 2005-03-08 | 엘지전자 주식회사 | Driving comtrol apparatus of reciprocating compressor for refrigerator |
KR100764795B1 (en) * | 2002-12-20 | 2007-10-11 | 엘지전자 주식회사 | Driving device and method of reciprocating compressor |
KR100524726B1 (en) * | 2003-08-14 | 2005-10-31 | 엘지전자 주식회사 | Driving circuit of reciprocating compressor |
KR100595550B1 (en) * | 2004-02-20 | 2006-07-03 | 엘지전자 주식회사 | Compressor driving apparatus of refrigerator with reciprocating compressor |
KR100608671B1 (en) | 2004-06-03 | 2006-08-08 | 엘지전자 주식회사 | Driving control apparatus and method for line start type reciprocating compressor |
KR100608690B1 (en) * | 2004-09-11 | 2006-08-09 | 엘지전자 주식회사 | Driving control apparatus and method for reciprocating compressor |
EP1635060B1 (en) * | 2004-09-11 | 2012-09-19 | LG Electronics, Inc. | Apparatus and method for controlling a compressor |
KR100677530B1 (en) * | 2004-11-26 | 2007-02-02 | 엘지전자 주식회사 | Driving control apparatus and method for reciprocating compressor |
US8156751B2 (en) * | 2005-05-24 | 2012-04-17 | Emerson Climate Technologies, Inc. | Control and protection system for a variable capacity compressor |
KR100652607B1 (en) * | 2005-10-24 | 2006-12-01 | 엘지전자 주식회사 | Apparatus for controlling operation of reciprocating compressor and method thereof |
KR100774470B1 (en) * | 2006-01-16 | 2007-11-08 | 엘지전자 주식회사 | Driving control apparatus and method for reciprocating compressor |
KR100756719B1 (en) * | 2006-02-02 | 2007-09-07 | 엘지전자 주식회사 | Control apparatus for linear compressor |
KR100756720B1 (en) * | 2006-02-02 | 2007-09-07 | 엘지전자 주식회사 | Control apparatus for linear compressor |
KR101190069B1 (en) * | 2011-05-23 | 2012-10-12 | 엘지전자 주식회사 | Apparatus for controlling compressor |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH09112439A (en) * | 1995-10-20 | 1997-05-02 | Sanyo Electric Co Ltd | Driver of linear compressor |
KR20000040149A (en) * | 1998-12-17 | 2000-07-05 | 구자홍 | Method and apparatus for controlling top clearance volume by speed sensorless control of linear compressor |
KR20000040146A (en) * | 1998-12-17 | 2000-07-05 | 구자홍 | Speed sensorless control method of linear compressor |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
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US4302946A (en) * | 1979-02-02 | 1981-12-01 | Tyler Refrigeration Corporation | Refrigeration system using air defrost |
DE3021873C2 (en) * | 1980-06-11 | 1982-11-25 | Heinrich Dipl.-Ing. 6368 Bad Vilbel Dölz | Electrically driven vibrating 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 |
JPS60128894A (en) * | 1983-12-16 | 1985-07-09 | Matsushita Electric Ind Co Ltd | Capacitor-operated induction motor |
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 (en) * | 1998-10-09 | 2000-12-15 | 구자홍 | Break-down protection circuit and its method of a linear compressor |
DE19952578B4 (en) * | 1998-11-04 | 2005-11-24 | Lg Electronics Inc. | Apparatus and method for controlling a linear compressor |
DE19918930B4 (en) * | 1999-04-26 | 2006-04-27 | Lg Electronics Inc. | Power control device for a linear compressor and method |
US6264432B1 (en) * | 1999-09-01 | 2001-07-24 | Liquid Metronics Incorporated | Method and apparatus for controlling a pump |
-
2001
- 2001-03-26 KR KR10-2001-0015634A patent/KR100396774B1/en active IP Right Grant
- 2001-05-24 JP JP2002575472A patent/JP3917526B2/en not_active Expired - Fee Related
- 2001-05-24 DE DE60108427T patent/DE60108427T2/en not_active Expired - Lifetime
- 2001-05-24 CN CN01810073A patent/CN1430702A/en active Pending
- 2001-05-24 BR BR0111190-6A patent/BR0111190A/en not_active Application Discontinuation
- 2001-05-24 WO PCT/KR2001/000867 patent/WO2002077453A1/en active IP Right Grant
- 2001-05-24 EP EP01934583A patent/EP1373728B1/en not_active Expired - Lifetime
- 2001-05-24 AT AT01934583T patent/ATE287043T1/en not_active IP Right Cessation
- 2001-05-24 US US10/276,913 patent/US20030143080A1/en not_active Abandoned
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH09112439A (en) * | 1995-10-20 | 1997-05-02 | Sanyo Electric Co Ltd | Driver of linear compressor |
KR20000040149A (en) * | 1998-12-17 | 2000-07-05 | 구자홍 | Method and apparatus for controlling top clearance volume by speed sensorless control of linear compressor |
KR20000040146A (en) * | 1998-12-17 | 2000-07-05 | 구자홍 | Speed sensorless control method of linear compressor |
Non-Patent Citations (1)
Title |
---|
PATENT ABSTRACTS OF JAPAN * |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2004046550A1 (en) * | 2002-11-19 | 2004-06-03 | Empresa Brasileira De Compressores S.A.-Embraco | A control system for the movement of a piston |
EP1985857A2 (en) * | 2007-04-28 | 2008-10-29 | Johnson Electric S.A. | Solenoid pump |
EP1985857A3 (en) * | 2007-04-28 | 2008-11-19 | Johnson Electric S.A. | Solenoid pump |
Also Published As
Publication number | Publication date |
---|---|
KR20020075565A (en) | 2002-10-05 |
DE60108427T2 (en) | 2006-01-05 |
ATE287043T1 (en) | 2005-01-15 |
EP1373728A1 (en) | 2004-01-02 |
BR0111190A (en) | 2003-04-08 |
CN1430702A (en) | 2003-07-16 |
JP2004519579A (en) | 2004-07-02 |
KR100396774B1 (en) | 2003-09-03 |
EP1373728B1 (en) | 2005-01-12 |
DE60108427D1 (en) | 2005-02-17 |
US20030143080A1 (en) | 2003-07-31 |
EP1373728A4 (en) | 2004-06-23 |
JP3917526B2 (en) | 2007-05-23 |
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