A dual-switch high step-up DC-DC converter topology is proposed in this paper. The proposed topology uses two power switches, a three-winding coupled inductor (TWCI), and voltage multiplier cells to provide a high voltage gain. Furthermore, the voltage stresses on power semiconductor switches are low, resulting in lower switching and conduction losses. Moreover, the common electrical ground is preserved in this topology, making it a suitable candidate for photovoltaic (PV) to grid systems. The operating modes and steady state analysis of the proposed converter are presented, and a comparative study is carried out to demonstrate advantages of the proposed topology over the existing topologies. Finally, the simulation results of the proposed topology are presented using PLECS software along with the experimental results for a 200 W, 30 V to 400 V laboratory setup.
S. Habibi et al., "A High Step-Up Dc-Dc Converter using a Three Winding Coupled Inductor for Photovoltaic to Grid Applications," 2022 IEEE Energy Conversion Congress and Exposition, ECCE 2022, Institute of Electrical and Electronics Engineers, Jan 2022.
The definitive version is available at https://doi.org/10.1109/ECCE50734.2022.9948055
Electrical and Computer Engineering
Keywords and Phrases
DC-DC; High Step-up; PV to Grid
International Standard Book Number (ISBN)
Article - Conference proceedings
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01 Jan 2022