Title:
COMPRESSOR CONTROL APPARATUS AND CONTROL METHOD
Document Type and Number:
WIPO Patent Application WO/2016/068675
Kind Code:
A1
Abstract:
A compressor control apparatus includes a rectifying unit configured to rectify power applied from the outside, a DC link unit configured to include a pair of capacitors and smooth the rectified voltage, an inverter unit configured to include a pair of switches and convert the smoothed DC voltage into a driving voltage of a motor according to a control signal, and a control unit configured to generate the control signal, wherein the control unit applies a DC offset voltage to the driving voltage according to a direction of a current applied to the motor on the basis of a result obtained by comparing voltages across the pair of capacitors.
Inventors:
YOO JAEYOO (KR)
PARK SUNGHO (KR)
KIM GYUNAM (KR)
PARK SUNGHO (KR)
KIM GYUNAM (KR)
Application Number:
PCT/KR2015/011648
Publication Date:
May 06, 2016
Filing Date:
November 02, 2015
Export Citation:
Assignee:
LG ELECTRONICS INC (KR)
International Classes:
F04B49/06; H02P27/06
Domestic Patent References:
| WO2013029610A2 | 2013-03-07 |
Foreign References:
| US20110019452A1 | 2011-01-27 | |||
| US20030164691A1 | 2003-09-04 | |||
| US20060127225A1 | 2006-06-15 | |||
| US20120034104A1 | 2012-02-09 |
Other References:
See also references of EP 3212933A4
Attorney, Agent or Firm:
PARK, Jang-Won (566, Gangnam-daero,Gangnam-gu, Seoul, KR)
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