公开(公告)号：US20220190603A1

公开(公告)日：2022-06-16

申请号：US17415677

申请日：2019-06-24

Applicant: GREE ELECTRIC APPLIANCES, INC. OF ZHUHAI

Inventor： Meng LI ,  Shiyong JIANG ,  Meng HUANG ,  Xuefen ZHANG ,  Xiang ZHANG ,  Fulong CHE

IPC: H02J3/38 ,  H02J3/46

Abstract: Disclosed are a power optimization method and an apparatus therefor, and a photovoltaic device and a photovoltaic system. The power optimization of a photovoltaic assembly can be realized when a series connection architecture or a parallel connection architecture is used for the photovoltaic assembly. The method includes: power optimization apparatuses carrying out MPPT processing on photovoltaic assemblies according to operating parameters of the photovoltaic assemblies corresponding to the power optimization apparatuses on a one-to-one basis (101); and controlling the photovoltaic assemblies according to MPPT processing results so that power states of the photovoltaic assemblies are optimized (102). By means of providing a power optimization apparatus for each photovoltaic assembly, the power optimization apparatus carries out MPPT processing on the corresponding photovoltaic assembly, thereby preventing the occurrence of power mismatch.

公开(公告)号：US20210044146A1

公开(公告)日：2021-02-11

申请号：US16966846

申请日：2018-12-13

Applicant: GREE ELECTRIC APPLIANCES, INC. OF ZHUHAI

Inventor： Mingzhu DONG ,  Zhigang ZHAO ,  Meng HUANG ,  Xuefen ZHANG ,  Shugong NAN ,  Shiyong JIANG ,  Meng LI ,  Wenqiang TANG ,  Peng REN ,  Wu WEN ,  Lingjun WANG ,  Xiao LUO ,  Wenhao WU ,  Jianjun HUANG ,  Weijin LI ,  Yunhong ZENG ,  Bei CHEN

IPC: H02J13/00 ,  H02J3/38 ,  H02J3/32

Abstract: An energy Internet system, an energy routing conversion device, and an energy control method, relating to a field of energy information. An alternating-current (AC) side energy routing conversion device of the energy Internet system includes a plurality of first route ports, and a direct-current (DC) side energy routing conversion device includes a plurality of second route ports, where each second route port is connected to a corresponding first route port by means of a corresponding DC busbar. A plurality of energy devices are connected to a DC busbar by means of corresponding first AC/DC converters or first DC converters. The AC side energy routing conversion device and the DC side energy routing conversion device collect energy information of the energy devices and adjust energy of the energy devices on a basis of energy balance constraint conditions.