Title :
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
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;
Conference_Titel :
ECCE Asia Downunder (ECCE Asia), 2013 IEEE
Conference_Location :
Melbourne, VIC
Print_ISBN :
978-1-4799-0483-9
DOI :
10.1109/ECCE-Asia.2013.6579110
