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Integration of Two SEPIC Converters and a Single Phase Bidirectional Inverter Using MPPT Algorithms

Abstract

In this paper, the integration operation of two SEPIC converters and a single phase bidirectional inverter is presented. The proposed MPPT algorithm used is hill climbing algorithm. The duty cycle can be perturbed according to the hill climbing algorithm and which is given as the gate input to the SEPIC converter. The bidirectional inverter is required for the purpose of power flow control between dc bus and ac grid. The simulation results for the input/output voltages and comparison with conventional perturbation and observation method is showed in this paper. The MATLAB/Simulink software package is used in this paper to establish a model of photovoltaic system with MPPT function

Ajmal K.A, K. Punnagai Selvi, Nileena P. Subhash

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