公开(公告)号：US20220209534A1

公开(公告)日：2022-06-30

申请号：US17380213

申请日：2021-07-20

Applicant: LG ELECTRONICS INC.

Inventor： Seungwook HYUN ,  Sunyoung PARK ,  Changjin LIM ,  Jungmin KIM

IPC: H02J3/12

Abstract: A control method of a power control device includes: receiving power from a power supply, distributing the power to at least one of a plurality of power conversion systems (PCSs), and transferring the power to a load using the at least one PCS. The power is distributed based on a load amount of power of each of the plurality of PCSs.

公开(公告)号：US20220263428A1

公开(公告)日：2022-08-18

申请号：US17625620

申请日：2020-07-07

Applicant: LG Electronics Inc.

Inventor： Daejoong KIM ,  Daihyun KIM ,  Seungwook HYUN

IPC: H02M7/48 ,  H02M3/335 ,  H02M1/12 ,  H02J3/38 ,  H02M7/5387

Abstract: The present disclosure relates to a power converting apparatus and a photovoltaic module including the same. The power converting apparatus according to an embodiment of the present disclosure includes: an inverter configured to convert input DC power into AC power by a switching operation; an output voltage detector configured to detect an output voltage of the inverter; and a controller configured to control the inverter, wherein the controller is configured to perform proportional resonant control based on the output voltage, and output a switching control signal to the inverter based on the proportional resonant control. Accordingly, it is possible to remove harmonics generated due to connection of a nonlinear load.