Interleaved high-gain boost converter powered by solar energy using hybrid-based MPP tracking technique

Abstract

This paper presents a solar-powered interleaved high-gain boost converter (IHGBC) that increases voltage gain with fewer ripples in the output voltage in comparison to existing DC–DC converters. The goal of this research is to develop a hybrid-based maximum power point tracking (MPPT) approach with the combination of a flower pollination (FP) algorithm assisted with a perturb & observe (P&O) MPPT approach for solar photovoltaic (SPV) systems integrated with IHGBC. To ensure effective usage of both FP and P&O algorithms, this study incorporates and validates the hybrid-based MPPT approach. The proposed solar-powered IHGBC with a hybrid-based MPPT algorithm has been computationally modelled and simulated using MATLAB® and Simulink® for both uniform and non-uniform irradiation and analysed for voltage gain, ripples in the output waveforms and convergence time. The proposed hybrid-based MPPT is based on a number of flowers that forecast the initial global peak, assisted by P&O in the last stage for faster convergence to attain the maximum power point (MPP). As a result, the hybrid-based MPPT approach alleviates the computational issues encountered in P&O and FP-based MPP approaches. The proposed hybrid MPPT is compared with conventional MPPT for SPV and the results show that the solar-powered IHGBC using a hybrid-based MPPT technique has negligible oscillations of 0.14% with a high-voltage gain of 7.992 and a fast convergence rate of 0.05 seconds compared to individual P&O-based MPPT and FP-based MPPT techniques. The simulation results of the proposed MPPT with IHGBC outperform the conventional MPPT with high-gain converters.

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“…Among these sources, solar energy is the most widely used due to its unlimited power supply and minimal pollution produced during production. This is especially true for residential properties, where solar energy is commonly utilized for sustainable energy solutions [5][6][7]. Photovoltaic (PV) solar energy is a popular choice for residential properties due to its cost-effectiveness.…”