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Maximum power extraction from a partially shaded PV system using an interleaved boost converter

Farh, Hassan M. H. and Othman, Mohd F. and Eltamaly, Ali M. and Al-Saud, M. S. (2018) Maximum power extraction from a partially shaded PV system using an interleaved boost converter. Energies, 11(10) (2543). pp. 1-18. ISSN 1996-1073

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Official URL: http://dx.doi.org/10.3390/en11102543

Abstract

The partially shaded photovoltaic (PSPV) condition reduces the generated power and contributes to hot spot problems that may lead to breakdown of shaded modules. PSPV generates multiple peak, one global one and many other local peaks. Many efficient, accurate and reliable maximum power point tracker (MPPT) techniques are used to track the global peak instead of local peaks. The proposed technique is not limited to global peak tracking, but rather it is capable of tracking the sum of all peaks of the PV arrays using an interleaved boost converter (IBC). The proposed converter has been compared with the state of the art conventional control method that uses a conventional boost converter (CBC). The converters used in the two PSPV systems are interfaced with electric utility using a three-phase inverter. The simulation findings prove superiority of the PSPV with IBC compared to the one using CBC in terms of power quality, reliability, mismatch power loss, DC-link voltage stability, efficiency and flexibility. Also, IBC alleviates partial shading effects and extracts higher power compared to the one using CBC. The results have shown a remarkable increase in output generated power of a PSPV system for the three presented scenarios of partial shading by 61.6%, 30.3% and 13%, respectively, when CBC is replaced by IBC.

Item Type:Article
Uncontrolled Keywords:conventional boost converter, interleaved boost converter, maximum power point tracker, mismatch loss, partially shaded photovoltaic, utility grid
Subjects:T Technology > T Technology (General)
Divisions:Malaysia-Japan International Institute of Technology
ID Code:84463
Deposited By: Yanti Mohd Shah
Deposited On:11 Jan 2020 15:30
Last Modified:11 Jan 2020 15:30

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