An Approximate Short Circuit Strategy for Transient MPPT Performance of Uniformly Irradiated Photovoltaic Modules

Year 2019, Volume: 7 Issue: 1, 88 - 93, 31.01.2019

Mustafa Engin Başoğlu

https://doi.org/10.17694/bajece.499932

Cited By: 4

Abstract

This paper presents
an improved strategy to provide better maximum power point tracking (MPPT) performance
and increase energy yield during transient state of MPPT process. This strategy
is based on the estimation of short circuit current (SCC) of the photovoltaic
(PV) system without short circuit. Besides that, this strategy aims to decrease
convergence time to maximum power point (MPP) by preventing real short circuit
of PV source and eliminating the additional switch requirement. To determine
performance of the proposed strategy, simulation studies have been performed in
MATLAB/Simulink and this strategy has been compared with fractional SCC (FSCC)
technique and perturb and observe (P&O) algorithm. In addition, to make
validation experimentally, a low powered single ended primary inductance
converter (SEPIC) is realized. Both simulation and experimental results show
that proposed strategy performs better transient MPPT performance than FSCC
technique and P&O algorithm.

Keywords

Maximum power point tracking, Fractional short circuit current, photovoltaic module, perturb and observe

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