Interleaved Soft-Switching Boost Converter for Photovoltaic Power-Generation System

Author

Jung, Doo-Yong ; Ji, Young-Hyok ; Park, Sang-Hoon ; Jung, Yong-Chae ; Won, Chung-Yuen

Author_Institution

Sch. of Inf. & Commun. Eng., Sungkyunkwan Univ., Suwon, South Korea

Volume

26

Issue

4

fYear

2011

fDate

4/1/2011 12:00:00 AM

Firstpage

1137

Lastpage

1145

Abstract

In this paper, a interleaved soft switching boost converter (ISSBC) for a photovoltaic (PV) power-generation system is proposed. The topology used raises the efficiency for the dc/dc converter of the PV power conditioning system (PVPCS), and it minimizes switching losses by adopting a resonant soft-switching method. A detailed mode analysis of the proposed topology is presented. The feasibility of the proposed topology is experimentally verified for a 1.2-kW prototype. The experimental results imply that 97.28% efficiency is achieved under the full-load condition. Consequently, it is confirmed that the overall efficiency is increased by about 1.5% compared with the conventional hard switching interleaved boost converter.

Keywords

DC-DC power convertors; photovoltaic power systems; switching convertors; DC-DC converter; ISSBC; PV power conditioning system; detailed mode analysis; efficiency 97.28 percent; interleaved soft-switching boost converter; photovoltaic power-generation system; power 1.2 kW; resonant soft-switching method; switching losses; Capacitance; Capacitors; Converters; Inductors; Logic gates; Switches; Video recording; Boost converter; interleaved; maximum power-point tracking (MPPT); photovoltaic (PV) power-generation systems; resonant converter; soft-switching;

fLanguage

English

Journal_Title

Power Electronics, IEEE Transactions on

Publisher

ieee

ISSN

0885-8993

Type

jour

DOI

10.1109/TPEL.2010.2090948

Filename

5620984