Open AccessMATLAB-Based Investigation of Multiphase Interleaved Buck-Boost Converter for PV System
Author(s) -
Hardik P. Desai,
Ranjan Maheshwari,
Shambhu N. Sharma
Publication year - 2012
Publication title -
isrn renewable energy
Language(s) - English
Resource type - Journals
eISSN - 2090-746X
pISSN - 2090-7451
DOI - 10.5402/2012/317982
Subject(s) - converters , interleaving , photovoltaic system , buck converter , ripple , inductor , boost converter , matlab , buck–boost converter , control theory (sociology) , computer science , electronic engineering , maximum power point tracking , generator (circuit theory) , voltage , power (physics) , engineering , electrical engineering , inverter , physics , control (management) , quantum mechanics , artificial intelligence , operating system
A photovoltaic (PV) generator exhibits nonlinear voltage-current characteristics and its maximum power point varies with solar radiation. Analytical investigations of the new family of switching converters based on a parallel connection of (=4) identical buck-boost converters employed in PV system are presented. The interleaving strategy ensures that all the converters operate at the same switching frequency. Mathematical models developed using the state-space average technique are presented in this paper. Various steady-state performance expressions are also derived. The present converter system has the advantages of reduced size of the converter, and ripple in the total inductor current. The effectiveness of the four-phase interleaved dc-dc converter combined with PV system is demonstrated through simulations carried out in MATLAB environment.
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