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1. WO2018128450 - COMPRESSOR DRIVING DEVICE AND CHILLER HAVING SAME

Publication Number WO/2018/128450
Publication Date 12.07.2018
International Application No. PCT/KR2018/000235
International Filing Date 05.01.2018
IPC
F04B 35/04 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
04POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
35Piston 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
04the means being electric
F04B 35/06 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
04POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
35Piston 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
06Mobile combinations
F04B 49/06 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
04POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
49Control of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for in, or of interest apart from, groups F04B1/-F04B47/196
06Control using electricity
F24F 5/00 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
24HEATING; RANGES; VENTILATING
FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
5Air-conditioning systems or apparatus not covered by group F24F1/ or F24F3/119
CPC
F04D 13/026
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
DNON-POSITIVE-DISPLACEMENT PUMPS
13Pumping installations or systems
02Units comprising pumps and their driving means
021containing a coupling
024a magnetic coupling
026Details of the bearings
F16C 32/0442
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
CSHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
32Bearings not otherwise provided for
04using magnetic or electric supporting means
0406Magnetic bearings
044Active magnetic bearings
0442with devices affected by abnormal, undesired or non-standard conditions such as shock-load, power outage, start-up or touchdown
F16C 32/0444
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
CSHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
32Bearings not otherwise provided for
04using magnetic or electric supporting means
0406Magnetic bearings
044Active magnetic bearings
0444Details of devices to control the actuation of the electromagnets
F16C 32/0451
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
CSHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
32Bearings not otherwise provided for
04using magnetic or electric supporting means
0406Magnetic bearings
044Active magnetic bearings
0444Details of devices to control the actuation of the electromagnets
0451Details of controllers, i.e. the units determining the power to be supplied, e.g. comparing elements, feedback arrangements with P.I.D. control
F16C 32/0457
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
CSHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
32Bearings not otherwise provided for
04using magnetic or electric supporting means
0406Magnetic bearings
044Active magnetic bearings
0444Details of devices to control the actuation of the electromagnets
0457Details of the power supply to the electromagnets
F24F 11/00
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
24HEATING; RANGES; VENTILATING
FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
11Control or safety arrangements
Applicants
  • 엘지전자 주식회사 LG ELECTRONICS INC. [KR]/[KR]
Inventors
  • 전종현 JEON, Jonghyun
  • 안준식 AN, Joonsik
  • 정근우 JUNG, Keunwoo
Agents
  • 박병창 PARK, Byung Chang
Priority Data
10-2017-000251306.01.2017KR
Publication Language Korean (KO)
Filing Language Korean (KO)
Designated States
Title
(EN) COMPRESSOR DRIVING DEVICE AND CHILLER HAVING SAME
(FR) DISPOSITIF D'ENTRAÎNEMENT DE COMPRESSEUR ET REFROIDISSEUR ÉQUIPÉ DUDIT DISPOSITIF
(KO) 압축기 구동장치 및 이를 구비한 칠러
Abstract
(EN)
The present invention relates to a chiller. According to an embodiment of the present invention, a compressor driving device comprises: a compressor having a compressor motor and a magnetic bearing; a coil driving part having a switching element, and applying current to a bearing coil of the magnetic bearing according to a switching operation so as to allow a rotor of the compressor motor to levitate or land from/to the magnetic bearing; and a control unit for controlling the switching element of the coil driving part, wherein the control unit performs control such that current flowing in the bearing coil drops in stages when the rotor of the compressor motor lands. Accordingly, when the compressor motor stops in a magnetic levitation manner, damage of the compressor motor rotor can be prevented.
(FR)
La présente invention concerne un refroidisseur. Selon un mode de réalisation de la présente invention, un dispositif d'entraînement de compresseur comprend : un compresseur ayant un moteur de compresseur et un palier magnétique; une partie entraînement de bobine ayant un élément de commutation, et appliquant un courant à une bobine de palier du palier magnétique en fonction d'une commutation de façon à permettre à un rotor du moteur de compresseur de léviter au-dessus ou d'atterrir sur le palier magnétique; et une unité de commande destinée à commander l'élément de commutation de la partie entraînement de bobine, l'unité de commande effectuant une commande de telle sorte que le courant circulant dans la bobine de palier diminue par étapes lorsque le rotor du moteur de compresseur atterrit. Par conséquent, lorsque le moteur de compresseur s'arrête en lévitation magnétique, une détérioration du rotor du moteur de compresseur peut être empêchée.
(KO)
본 발명은 칠러에 관한 것이다. 본 발명의 실시예에 따른 압축기 구동장치는, 압축기 모터와 자기 베어링을 구비하는 압축기와, 스위칭 소자를 구비하고, 스위칭 동작에 따라, 자기 베어링의 베어링 코일에 전류를 인가하여, 압축기 모터의 회전자를, 자기 베어링으로부터 부상(levitation)시키거나, 랜딩(landing)시키는 코일 구동부와, 코일 구동부의 스위칭 소자를 제어하는 제어부를 포함하고, 제어부는, 압축기 모터의 회전자 랜딩시, 베어링 코일에 흐르는 전류가 단계적으로 하강하도록 제어한다. 이에 따라, 자기 부상 방식에서 압축기 모터 정지시, 압축기 모터의 회전자의 손상을 방지할 수 있게 된다.
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