A P&O Based Variable Step Size MPPT Algorithm for Photovoltaic Applications

Authors : Gökhan YÜKSEK, Ahmet Naci METE

Pages : 608-622

Doi:10.35378/gujs.1050325

View : 224 | Download : 854

Publication Date : 2023-06-01

Article Type : Research Paper

Abstract :Maximum power point tracking insert ignore into journalissuearticles values(MPPT); is an indispensable component of the Photovoltaic insert ignore into journalissuearticles values(PV); systems to maximize efficiency. Perturb and observe insert ignore into journalissuearticles values(P&O); is one of the prevalent MPPT methods owing to its easier structure for implementation but it suffers from problems of slow tracking and oscillations around the MPP. In this paper, a modified variable step size MPPT algorithm based on P&O method is proposed to obtain maximum power output from the PV system coupled with a boost DC-DC converter. The proposed method employs the scaled power difference as a control variable to enable variation of step size for each cycle. Results obtained by simulation and experimental work verified that the proposed algorithm is potent mitigating the problems related with classical P&O method.
Keywords : MPPT, Modified P O, DC DC converter, PV systems