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Performance and Stability Analysis of Series-Cascaded, High-Gain, Interleaved Boost Converter for Photovoltaic Applications Cover

Performance and Stability Analysis of Series-Cascaded, High-Gain, Interleaved Boost Converter for Photovoltaic Applications

Open Access
|Nov 2018

Abstract

Interleaved boost converters (IBCs) are cascaded in parallel in most of the applications. This novel approach connects IBC in series cascade. The IBC has an optimal operating duty cycle of 0.5. Normally, photovoltaic source voltage is low because of space constraints. In order to boost the source voltage, a conventional boost converter is replaced with series-cascaded IBC in this paper. The single-stage IBC also boosts the voltage to twice the input voltage. In the proposed converter, output voltage is about four times the input voltage with the same 0.5 duty cycle. A mathematical model is developed and simulated for the proposed work in MATLAB/Simulink platform. The output of the proposed circuit is analysed through fast Fourier transform to know the harmonic content due to the switching. The system is tested for stability with signal-flow graph modelling. The proposed work is realised using hardware and tested to validate the model.

DOI: https://doi.org/10.2478/pead-2018-0022 | Journal eISSN: 2543-4292 | Journal ISSN: 2451-0262
Language: English
Page range: 85 - 97
Submitted on: Aug 9, 2018
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Accepted on: Oct 7, 2018
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Published on: Nov 17, 2018
In partnership with: Paradigm Publishing Services
Publication frequency: 1 issue per year

© 2018 C. Prasanna Kumar, N. Venugopal, published by Wroclaw University of Science and Technology
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.