A Current Fed Two-Inductor Boost ConverterWith an Integrated Magnetic Structure and Passive Lossless Snubbers for Photovoltaic Module Integrated Converter Applications
MetadataShow full item record
Copyright © 2007 IEEE This material is presented to ensure timely dissemination of scholarly and technical work. Copyright and all rights therein are retained by authors or by other copyright holders. All persons copying this information are expected to adhere to the terms and constraints invoked by each author's copyright. In most cases, these works may not be reposted without the explicit permission of the copyright holder.
In this paper, a photovoltaic (PV) module integrated converter is implemented with a current fed two-inductor boost converter cascaded with a line frequency unfolder. The current source is a sinusoidally modulated two-phase buck converter with an interphase transformer. The boost cell operates at a fixed duty ratio and has an integrated magnetic structure. The two inductors and the transformer are integrated into one magnetic core. Passive lossless snubbers are employed to recover the energy trapped in the transformer leakage inductance and to minimize the switching losses. The two-inductor boost converter output interfaces with the mains via an unfolding stage, where the MOSFETs are driven by the PV gate drivers. Experimental results are provided for a 100-W converter developing a single phase 240-V 50-Hz output.
Showing items related by title, author, creator and subject.
Isolated zero-voltage switching two-inductor boost converter with two coupled input inductors and one magnetic coreWolfs, Peter; Li, Q. (2009)The isolated two-inductor boost converter with an auxiliary transformer has been previously proposed for applications where the low voltage inputs need to be transformed to high voltage outputs. In order to utilise the ...
Analysis, Design and Experimentation of a Zero-Voltage Switching Two-Inductor Boost Converter with Integrated MagneticsLi, Q.; Wolfs, Peter (2006)A zero-voltage switching (ZVS) two-inductor boost converter with an integrated magnetic structure has been previously proposed to achieve the size and cost reduction in the converter design with discrete magnetics. In the ...
Li, Q.; Wolfs, Peter (2005)A two-inductor boost converter topology has conduction loss and transformer utilization advantages in converting low-voltage higher current inputs to high output voltages. In this letter, a new zero-voltage switching (ZVS) ...