A three-port high step-up DC-DC converter for PV system

Author

Yihua Hu ; Yan Deng ; Xiaoxun Lu ; Yong Tao ; Xiangning He

Author_Institution

Coll. of Electr. Eng., Zhejiang Univ., Hangzhou, China

fYear

2013

fDate

3-6 June 2013

Firstpage

285

Lastpage

290

Abstract

The battery charger and the high step-up isolated DC-DC converter can be combined in a single unit with the three-port converter topology. In the proposed converter, renewable energy sources, the battery and high voltage output are combined together, and renewable energy sources and battery are low voltage parts isolated with high voltage output. In order to control energy transfer path, three working modes are introduced. PWM and phase-shifted control are employed to transfer energy to high voltage output or battery. A 250W prototype is built. Effectiveness of the proposed topology is verified by experimental results.

Keywords

DC-DC power convertors; battery chargers; photovoltaic power systems; power generation control; renewable energy sources; PV system; PWM control; battery charger; energy transfer path; high step-up isolated dc-dc converter; phase-shifted control; photovoltaic system; power 250 W; renewable energy sources; three-port converter topology; DC-DC power converters; Steady-state; Switches; PWM; Three-port converter; phase-shift;

fLanguage

English

Publisher

ieee

Conference_Titel

ECCE Asia Downunder (ECCE Asia), 2013 IEEE

Conference_Location

Melbourne, VIC

Print_ISBN

978-1-4799-0483-9

Type

conf

DOI

10.1109/ECCE-Asia.2013.6579110

Filename

6579110