PHOTOVOLTAIC POWER GENERATION SYSTEM

Title:

PHOTOVOLTAIC POWER GENERATION SYSTEM

Document Type and Number:

WIPO Patent Application WO/2021/141238

Kind Code:

A1

Abstract:

A photovoltaic power generation system according to an embodiment of the present invention comprises: a first power conversion unit for converting and outputting power applied from a photovoltaic power generation panel; a second power conversion unit for receiving, via a first input/output terminal, the power output by the first power conversion unit, converting same, and outputting same via a second input/output terminal, or receiving power from the second input/output terminal, converting same, and outputting same via the first input/output terminal; a third power conversion unit for receiving power from the first power conversion unit or the second power conversion unit and charging an energy storage device, or transmitting power charged in the energy storage device to the second power conversion unit; and an active power filter for reducing ripples in the second power conversion unit, wherein power stored in the active power filter is transmitted to the first power conversion unit.

Inventors:

KIM SOO SAN (KR)
LEE SEUNG MIN (KR)
JUNG JAE YEOP (KR)

Application Number:

PCT/KR2020/016783

Publication Date:

July 15, 2021

Filing Date:

November 25, 2020

Export Citation:

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Assignee:

LG INNOTEK CO LTD (KR)

International Classes:

H02M1/15; H02J3/38; H02J7/35; H02S10/00

Foreign References:

KR20160129266A	2016-11-09
KR20110029730A	2011-03-23
KR20190036914A	2019-04-05
JP2012044066A	2012-03-01
US20190157865A1	2019-05-23

Other References: