Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
PHOTOVOLTAIC POWER GENERATION INVERTER SYSTEM
Document Type and Number:
WIPO Patent Application WO/2020/057635
Kind Code:
A1
Abstract:
A photovoltaic power generation system, which may increase the voltage of an inverter system and reduce the current of the photovoltaic power generation system under equal power conversion conditions so as to save energy and reduce costs of the photovoltaic system. The system comprises: a photovoltaic array (101), a DC conversion unit (102), a bus unit (103) and an inverter unit (104). The photovoltaic array consists of one or more photovoltaic arrays (101), and the photovoltaic arrays (101) are used for converting solar energy into electrical energy, or in other words, generating DC power and outputting a DC voltage. The bus unit (103) is used for storing the DC power outputted by the DC conversion unit (102) or directly storing the DC power outputted by the photovoltaic arrays (101) so as to increase the bus voltage of the first bus unit (103). Under equal power conversion conditions, increasing the input voltage of the inverter unit (104) may effectively reduce the DC bus current in the photovoltaic power generation inverter system, and the inverted AC current of the inverter unit (104) will also be correspondingly reduced, thereby reducing the power loss in the photovoltaic power generation inverter system.

Inventors:
ZHANG YANZHONG (CN)
WANG XUN (CN)
HUEMPFNER ROLAND (CN)
Application Number:
CN2019/106971
Publication Date:
March 26, 2020
Filing Date:
September 20, 2019
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
HUAWEI TECH CO LTD (CN)
International Classes:
H02J3/38
Foreign References:
CN109167390A2019-01-08
CN103368200A2013-10-23
CN101779291A2010-07-14
CN105743432A2016-07-06
CN104113280A2014-10-22
US20130200715A12013-08-08
Attorney, Agent or Firm:
SHENPAT INTELLECTUAL PROPERTY AGENCY (CN)
Download PDF: