公开(公告)号：US11626738B2

公开(公告)日：2023-04-11

申请号：US17353925

申请日：2021-06-22

Applicant: Huawei Digital Power Technologies Co., Ltd.

Inventor： Yanzhong Zhang ,  Zhenhuan Shu ,  Xun Wang

IPC: H02J3/38

Abstract: This application relates to the field of power technologies, and provides a photovoltaic system, which can increase a working voltage of a photovoltaic string. The photovoltaic system includes an adapter circuit, a first photovoltaic string, a second photovoltaic string, and a controller. The controller includes an inverter or a combiner box. The first photovoltaic string and the second photovoltaic string are configured to provide electric energy for the controller. The adapter circuit is configured to be connected to the first photovoltaic string in series, and further configured to connect the second photovoltaic string to the first photovoltaic string in series when a voltage of the first photovoltaic string is lower than a preset threshold.

公开(公告)号：US20230260097A1

公开(公告)日：2023-08-17

申请号：US18305171

申请日：2023-04-21

Applicant: Huawei Digital Power Technologies Co., Ltd.

Inventor： Jianqiang Wang ,  Zhenhuan Shu ,  Song Wan ,  Yanzhong Zhang

IPC: G06T7/00 ,  G01J5/08 ,  B64U10/00

CPC classification number: G06T7/0002 ,  G01J5/0859 ,  B64U10/00 ,  G01J2005/0077

Abstract: A power station inspection system and a power station inspection method are disclosed. A power station inspection system includes an unmanned aerial vehicle, and an unmanned aerial vehicle flight controller, a central controller, and at least two types of data collection terminals that are disposed on the unmanned aerial vehicle. The central controller is configured to control the unmanned aerial vehicle flight controller, so that the unmanned aerial vehicle flight controller controls flight of the unmanned aerial vehicle. The central controller is further configured to control the at least two types of data collection terminals to collect at least two types of component image data of a power station component in a flight process of the unmanned aerial vehicle.

公开(公告)号：US12261566B2

公开(公告)日：2025-03-25

申请号：US17575537

申请日：2022-01-13

Applicant: Huawei Digital Power Technologies Co., Ltd.

Inventor： Yanzhong Zhang ,  Zhenhuan Shu

IPC: H02S40/32 ,  H02S40/38

Abstract: A photovoltaic system includes a plurality of photovoltaic strings, at least one junction device, and at least one inverter. Each photovoltaic string includes a first direct current output terminal, and is configured to generate a first direct current. Each junction device is coupled to the plurality of photovoltaic strings. Each junction device is configured to output second direct currents through second direct current output terminals of the junction device after converging a plurality of first direct currents. An ith junction device includes a plurality of second direct current output terminals. The ith junction device is configured to output a plurality of mutually independent second direct currents after converging a plurality of first direct currents, and i is a positive integer. A quantity of the plurality of second direct currents is less than a quantity of the plurality of first direct currents.

公开(公告)号：US20220140781A1

公开(公告)日：2022-05-05

申请号：US17575537

申请日：2022-01-13

Applicant: Huawei Digital Power Technologies Co., Ltd.

Inventor： Yanzhong Zhang ,  Zhenhuan Shu

IPC: H02S40/32 ,  H02S40/38

Abstract: A photovoltaic system includes a plurality of photovoltaic strings, at least one junction device, and at least one inverter. Each photovoltaic string includes a first direct current output terminal, and is configured to generate a first direct current. Each junction device is coupled to the plurality of photovoltaic strings. Each junction device is configured to output second direct currents through second direct current output terminals of the junction device after converging a plurality of first direct currents. An ith junction device includes a plurality of second direct current output terminals. The ith junction device is configured to output a plurality of mutually independent second direct currents after converging a plurality of first direct currents, and i is a positive integer. A quantity of the plurality of second direct currents is less than a quantity of the plurality of first direct currents.