Title :
High step-up dc-dc converter with high efficiency for photovoltaic module integrated converter systems
Author :
Choi, Woo Young ; Kim, Se Min ; Park, Sung Jun ; Kim, Kwang Heon ; Lim, Young Cheol
Author_Institution :
Bradley Dept. of Electr. & Comput. Eng., Virginia Polytech. Inst. & State Univ., Blacksburg, VA, USA
Abstract :
A new high efficiency high step-up dc-dc converter is proposed for photovoltaic (PV) module integrated converter (MIC) systems. In the proposed converter, two transformers are utilized to double the voltage conversion ratio. Two resonant voltage doubler rectifiers are designed so that the output rectifying diodes are turned off at zero-current. A 260 W prototype was built and tested. Power efficiency of 97 % was obtained at the rated output power for 36 V input voltage.
Keywords :
DC-DC power convertors; photovoltaic power systems; efficiency 97 percent; high step-up dc-dc converter; photovoltaic module integrated converter systems; power 260 W; resonant voltage doubler rectifiers; voltage 36 V; DC-DC power converters; Diodes; Microwave integrated circuits; Photovoltaic systems; Prototypes; Rectifiers; Resonance; Solar power generation; Testing; Transformers;
Conference_Titel :
Telecommunications Energy Conference, 2009. INTELEC 2009. 31st International
Conference_Location :
Incheon
Print_ISBN :
978-1-4244-2490-0
Electronic_ISBN :
978-1-4244-2491-7
DOI :
10.1109/INTLEC.2009.5352029
