Title:
MOTOR CONTROLLER OF AIR CONDITIONER
Document Type and Number:
WIPO Patent Application WO/2009/066839
Kind Code:
A3
Abstract:
The present invention relates to a motor controller (200) of an air conditioner, including an inverter (220) including a plurality of switching elements and adapted to convert a DC voltage, input through switching operations of the switching elements, into an AC voltage and supply the converted voltage to a motor (250), a power calculation unit (260) that calculates electric power applied to the motor (250), an angle calculation unit (270) that calculates an optimal phase angle of a current command value based on the calculated electric power; and a microcomputer (230) that outputs a switching control signal to control the switching elements of the inverter based on the optimal phase angle.
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Inventors:
HWANG SUN HO (KR)
JUNG HAN SU (KR)
LEE CHUNG HUN (KR)
JUNG HAN SU (KR)
LEE CHUNG HUN (KR)
Application Number:
PCT/KR2008/002442
Publication Date:
June 30, 2011
Filing Date:
April 30, 2008
Export Citation:
Assignee:
LG ELECTRONICS INC (KR)
HWANG SUN HO (KR)
JUNG HAN SU (KR)
LEE CHUNG HUN (KR)
HWANG SUN HO (KR)
JUNG HAN SU (KR)
LEE CHUNG HUN (KR)
International Classes:
F24F11/00; H02M5/458
Foreign References:
| JP2005151635A | 2005-06-09 | |||
| JPS59106882A | 1984-06-20 | |||
| JPH10155297A | 1998-06-09 | |||
| JPH0544980A | 1993-02-23 |
Attorney, Agent or Firm:
PARK, Byung Chang (824-24Yeoksam-dong, Kangnam-gu, Seoul 135-080, KR)
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