公开(公告)号：US11011990B2

公开(公告)日：2021-05-18

申请号：US16935812

申请日：2020-07-22

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Petar Grbovic ,  Roland Huempfner ,  Jose Antonio Cobos ,  Pedro Alou ,  Jesus Angel Oliver ,  Miroslav Vasic

IPC: H02M3/158 ,  H02M7/483 ,  H02M1/00

Abstract: A DC/DC power converter has an input terminal, an output terminal, and a ground terminal. The DC/DC power converter includes two capacitors connected in series between the output terminal and the ground terminal, a boost converter having a first boost converter terminal connected to the input terminal, a second boost converter terminal connected to the output terminal, and a third boost converter terminal connected to a connection point between the capacitors, and a step-up converter having a first step-up converter terminal connected to the ground terminal, a second step-up converter terminal connected to the output terminal, and a third step-up converter terminal connected to the connection point.

公开(公告)号：US11217999B2

公开(公告)日：2022-01-04

申请号：US17113453

申请日：2020-12-07

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yanzhong Zhang ,  Xun Wang ,  Roland Huempfner

IPC: H02J3/38

Abstract: Voltage in the photovoltaic power generation system can be increased under a same power conversion condition, to reduce a current in the photovoltaic power generation system, thereby reducing energy consumption and reducing costs of the photovoltaic power generation system. The system includes: a photovoltaic array, a direct current conversion unit, a bus unit, and an inverter unit, where there are one or more photovoltaic arrays; the photovoltaic array is configured to: convert solar energy into electric energy, in other words, generate direct current power, and output a direct current voltage. The bus unit stores direct current electric energy output by the direct current conversion unit or directly stores the direct current electric energy output by the photovoltaic array, to increase a bus voltage in the first bus unit.

公开(公告)号：US20210091571A1

公开(公告)日：2021-03-25

申请号：US17113453

申请日：2020-12-07

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yanzhong Zhang ,  Xun Wang ,  Roland Huempfner

IPC: H02J3/38

Abstract: Voltage in the photovoltaic power generation system can be increased under a same power conversion condition, to reduce a current in the photovoltaic power generation system, thereby reducing energy consumption and reducing costs of the photovoltaic power generation system. The system includes: a photovoltaic array, a direct current conversion unit, a bus unit, and an inverter unit, where there are one or more photovoltaic arrays; the photovoltaic array is configured to: convert solar energy into electric energy, in other words, generate direct current power, and output a direct current voltage. The bus unit stores direct current electric energy output by the direct current conversion unit or directly stores the direct current electric energy output by the photovoltaic array, to increase a bus voltage in the first bus unit.

公开(公告)号：US20200350820A1

公开(公告)日：2020-11-05

申请号：US16935812

申请日：2020-07-22

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Petar Grbovic ,  Roland Huempfner ,  Jose Antonio Cobos ,  Pedro Alou ,  Jesus Angel Oliver ,  Miroslav Vasic

IPC: H02M3/158 ,  H02J3/38 ,  H02M7/483

Abstract: A DC/DC power converter has an input terminal, an output terminal, and a ground terminal. The DC/DC power converter comprises two capacitors connected in series between the output terminal and the ground terminal, a boost converter having a first boost converter terminal connected to the input terminal, a second boost converter terminal connected to the output terminal, and a third boost converter terminal connected to a connection point between the capacitors, and a step-up converter having a first step-up converter terminal connected to the ground terminal, a second step-up converter terminal connected to the output terminal, and a third step-up converter terminal connected to the connection point.