Title:
POWER CONVERSION DEVICE
Document Type and Number:
WIPO Patent Application WO/2023/090941
Kind Code:
A1
Abstract:
The present invention relates to an auxiliary power supply device for generating auxiliary power of a power conversion device, the auxiliary power supply device comprising: a first auxiliary power supply unit which receives power applied from a photovoltaic module and generates auxiliary power therefrom; a second auxiliary power supply unit which receives power applied from a grid and generates auxiliary power therefrom; and a driving unit which can selectively drive the second auxiliary power supply unit according to the magnitude of voltage of the photovoltaic module. Accordingly, the present invention has an advantage in that an auxiliary power supply can be normally operated even in an environment where photovoltaic power generation is not performed.
Inventors:
LEE SEUNG MIN (KR)
YOON DONG KEUN (KR)
JANG SEONG JAE (KR)
YOON DONG KEUN (KR)
JANG SEONG JAE (KR)
Application Number:
PCT/KR2022/018322
Publication Date:
May 25, 2023
Filing Date:
November 18, 2022
Export Citation:
Assignee:
LG INNOTEK CO LTD (KR)
International Classes:
H02J3/32; H02M1/10; H02J7/35; H02M3/156; H02S40/30
Foreign References:
| JPH08308247A | 1996-11-22 | |||
| CN201436775U | 2010-04-07 | |||
| JP2009033892A | 2009-02-12 | |||
| JPH05184083A | 1993-07-23 | |||
| US20120235486A1 | 2012-09-20 |
Attorney, Agent or Firm:
JIN, Cheon Woong et al. (KR)
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