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

Authors : Mustafa Engin BAŞOĞLU

Pages : 88-93

Doi:10.17694/bajece.499932

View : 13 | Download : 9

Publication Date : 2019-01-31

Article Type : Research Paper

Abstract :This paper presents an improved strategy to provide better maximum power point tracking insert ignore into journalissuearticles values(MPPT); performance and increase energy yield during transient state of MPPT process. This strategy is based on the estimation of short circuit current insert ignore into journalissuearticles values(SCC); of the photovoltaic insert ignore into journalissuearticles values(PV); system without short circuit. Besides that, this strategy aims to decrease convergence time to maximum power point insert ignore into journalissuearticles values(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 insert ignore into journalissuearticles values(FSCC); technique and perturb and observe insert ignore into journalissuearticles values(P&O); algorithm. In addition, to make validation experimentally, a low powered single ended primary inductance converter insert ignore into journalissuearticles values(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