POWER OPTIMIZATION METHOD AND APPARATUS THEREFOR, AND PHOTOVOLTAIC DEVICE AND PHOTOVOLTAIC SYSTEM

Title:

POWER OPTIMIZATION METHOD AND APPARATUS THEREFOR, AND PHOTOVOLTAIC DEVICE AND PHOTOVOLTAIC SYSTEM

Document Type and Number:

WIPO Patent Application WO/2020/124973

Kind Code:

A1

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 comprises: 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.

Inventors:

LI MENG (CN)
JIANG SHIYONG (CN)
HUANG MENG (CN)
ZHANG XUEFEN (CN)
ZHANG XIANG (CN)
CHE FULONG (CN)

Application Number:

PCT/CN2019/092560

Publication Date:

June 25, 2020

Filing Date:

June 24, 2019

Export Citation:

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Assignee:

GREE ELECTRIC APPLIANCES INC ZHUHAI (CN)

International Classes:

G05F1/67

Foreign References:

CN109634349A	2019-04-16
CN104426473A	2015-03-18
CN104426473A	2015-03-18
CN104092240A	2014-10-08
CN106300612A	2017-01-04
CN104579120A	2015-04-29
KR20180104873A	2018-09-27
JP2018165921A	2018-10-25

Other References: