Universiti Teknologi Malaysia Institutional Repository

MPPT for PV system based on variable step size P & O algorithm

Jusoh, Awang and Alik, Rozana and Tan, Kar Guan and Sutikno, Tole (2017) MPPT for PV system based on variable step size P & O algorithm. Telkomnika (Telecommunication Computing Electronics and Control), 15 (1). pp. 79-92. ISSN 1693-6930

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Official URL: https://www.scopus.com/inward/record.uri?eid=2-s2....

Abstract

This paper presents some improvements on the Perturb and Observe (P & O) method to overcome the common drawbacks of conventional P & O method. The main advantage of this modified algorithm is its simplicity with higher accuracy results, compared to the conventional methods. The operation of the entire solar Maximum Power Point Tracking (MPPT) system was observed through two different approaches, which are through MATLAB/Simulink simulation and hardware implementation. A small scale of hardware design, which consists of solar PV cell, boost converter and Arduino Mega2560 microcontroller, had been utilized for further verification on the simulation results. The simulation results that was carried out by this modified P & O algorithm showed improvement and a promising performance: faster convergence speed of 0.67s, small oscillation at steady state region and promising efficiency of 95.23%. Besides, from the hardware results, the convergence time of the power curve was able to maintain at 0.2s and give almost zero oscillation during steady state. It is envisaged that the method is useful in future research of Photovoltaic (PV) system.

Item Type:Article
Uncontrolled Keywords:MPPT, Perturb and observe, Photovoltaic system, Variable step size
Subjects:T Technology > TK Electrical engineering. Electronics Nuclear engineering
Divisions:Electrical Engineering
ID Code:75676
Deposited By: Widya Wahid
Deposited On:24 Sep 2018 01:22
Last Modified:24 Sep 2018 01:22

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