A novel Interleaved Boost Converter having low Switching Losses in Photovoltaic Power-Generation System (original) (raw)
In this paper a new interleaved boost converter (IBC) for photovoltaic (PV) power-generation system is proposed. In power-generation systems efficiency and cost are vital criteria which should be taken into consideration .with the proposed converter voltage stress related to one of the switches in IBC decreased noticeably. Furthermore the switching losses is lower than conventional IBC due to softer switching. These advantages lead the photovoltaic system to higher efficiency and lower cost of converter and allow the proposed converter operate in higher switching frequencies. The idea is based on implementation of coupling capacitor in IBC like Zeta and Sepic converters. A 0.5Kw converter is designed and connected to 240W solar cell. The Maximum Power Point Tracking (MPPT) method based on Perturb and Observe (P&O) is used to track efficient power points according to solar irradiation. The Simulation results verify effectiveness of proposed converter.
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