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1. WO2002023710 - POLE-CHANGE TYPE MOTOR

Publication Number WO/2002/023710
Publication Date 21.03.2002
International Application No. PCT/KR2001/001526
International Filing Date 10.09.2001
Chapter 2 Demand Filed 16.04.2002
IPC
H02P 25/20 2006.01
HELECTRICITY
02GENERATION, CONVERSION, OR DISTRIBUTION OF ELECTRIC POWER
PCONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
25Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details
16characterised by the circuit arrangement or by the kind of wiring
18with arrangements for switching the windings, e.g. with mechanical switches or relays
20for pole-changing
CPC
H02P 25/20
HELECTRICITY
02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
PCONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
25Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details
16characterised by the circuit arrangement or by the kind of wiring
18with arrangements for switching the windings, e.g. with mechanical switches or relays
20for pole-changing
Applicants
  • LG ELECTRONICS INC. [KR]/[KR] (AllExceptUS)
  • JEONG, Seung-Kiu [KR]/[KR] (UsOnly)
  • SON, Moon-Kyoung [KR]/[KR] (UsOnly)
  • JUNG, Tae-Uk [KR]/[KR] (UsOnly)
Inventors
  • JEONG, Seung-Kiu
  • SON, Moon-Kyoung
  • JUNG, Tae-Uk
Agents
  • KANG, Yong-Bok
Priority Data
2000-5466818.09.2000KR
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) POLE-CHANGE TYPE MOTOR
(FR) MOTEUR A INVERSION POLAIRE
Abstract
(EN)
Disclosed is a pole-change type motor that provides a variable-speed (two-pole or four-pole type) operation system capable of reducing the load of the motor of the normal operation system and improving the cooling efficiency. In case of a quick operation, the motor switches over to the two-pole type according to the control of a relay section. At this time, the load of the motor is reduced by offsetting an abnormal magnetic field distribution formed due to the same polarity of adjacent main windings using compensation windings of an opposite polarity. If the quick operation is needed, the motor switches over to the two-pole type, and operates at a high speed to achieve the quick cooling. Then, if a standard operation is possible with the lapse of the predetermined time, the motor switches over to the four-pole type, and operates at a low speed to achieve an effective cooling.
(FR)
L'invention concerne un moteur à inversion polaire comprenant un système de fonctionnement à vitesse variable (bipolaire ou quadripolaire) capable de réduire la charge du moteur d'un système de fonctionnement normal, et d'améliorer l'efficacité de refroidissement. En cas de fonctionnement rapide, le moteur passe en mode bipolaire en fonction d'une commande de section de relais. A ce moment là, la charge du moteur est réduite par décalage d'une distribution de champ magnétique anormale du fait que des enroulements principaux adjacents possèdent la même polarité grâce à des enroulements de compensation de polarité opposée. Lorsqu'un fonctionnement rapide est requis, le moteur passe en mode bipolaire et fonctionne à un régime élevé, ce qui permet un refroidissement rapide. Puis, si les conditions de fonctionnement normal sont réunies après écoulement d'un laps de temps prédéterminé, le moteur passe en mode quadripolaire, et fonctionne à bas régime, ce qui permet un refroidissement efficace.
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