公开(公告)号：US11211897B2

公开(公告)日：2021-12-28

申请号：US16192390

申请日：2018-11-15

Applicant: LG ELECTRONICS INC.

Inventor： Kanghwan Jin ,  Sunho Yu ,  Kanghwi Kim ,  Daihyun Kim ,  Yesl Shin ,  Hyeonggu Han

IPC: H01L31/044 ,  H02S40/32 ,  H02S40/38 ,  H02S40/34 ,  H02J3/38 ,  H02M7/5387 ,  H02M1/14 ,  H02M3/335 ,  H02M1/44 ,  H02M1/00

Abstract: A photovoltaic module can include a solar cell module including a plurality of solar cells; a converter configured to convert a level of DC power input from the solar cell module; a DC-terminal capacitor configured to store DC power output from the converter; an inverter including a plurality of switching elements and configured to convert DC power from the DC-terminal capacitor into AC power; and a controller configured to control the inverter, in which the converter controls some switching elements among of the plurality of switching elements included in the inverter to perform switching at a third switching frequency, and controls other switching elements among the plurality of switching elements included in the inverter to perform switching at a forth switching frequency higher than the third switching frequency.