Title:
DIRECT CURRENT PROTECTION DEVICE AND CONTROL METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2019/078510
Kind Code:
A1
Abstract:
A direct current protection device according to one technical aspect of the present invention, which receives direct current power supplied from an AC-to-DC converter and performs a protection operation against overcurrent, may comprise: a plurality of switch units connected in parallel; a protection circuit unit including an inductor connected in series to the plurality of switch units; and a control unit for controlling an increase rate of an inductor current by changing an electrical connection of the inductor according to a magnitude of an output current and performing an overcurrent protection operation on the basis of the magnitude of the inductor current and the magnitude of the output current.
More Like This:
Inventors:
CHO JIN TAE (KR)
KIM HO SUNG (KR)
KIM JU YONG (KR)
KIM HONG JOO (KR)
RYU MYUNG HYO (KR)
BAEK JU WON (KR)
CHO YOUNG PYO (KR)
KIM HO SUNG (KR)
KIM JU YONG (KR)
KIM HONG JOO (KR)
RYU MYUNG HYO (KR)
BAEK JU WON (KR)
CHO YOUNG PYO (KR)
Application Number:
PCT/KR2018/011552
Publication Date:
April 25, 2019
Filing Date:
September 28, 2018
Export Citation:
Assignee:
KOREA ELECTRIC POWER CORP (KR)
International Classes:
H02H3/087; H02H7/26
Foreign References:
| KR20130109879A | 2013-10-08 | |||
| JP2007295743A | 2007-11-08 | |||
| KR20170030725A | 2017-03-20 | |||
| KR100801498B1 | 2008-02-12 | |||
| JP2015156777A | 2015-08-27 |
Attorney, Agent or Firm:
AJU INTERNATIONAL LAW & PATENT GROUP (KR)
Download PDF: