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Optimization of the photovoltaic systems on the North Cameroon interconnected electrical grid

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Abstract

Active filters based on multicellular inverters are an efficient, robust, and reliable means of large-scale photovoltaic systems for the next generation of smart grids. This paper presents active filters based on a cascaded multicellular inverter for three-phase PV systems connected to the North Cameroon interconnected grid. The proposed system consists of the boost chopper connected to the grids, via the 7-level inverters located before the multicellular active filters with five switching cells per arm. The contribution of this paper is due to the improved P&O MPPT algorithm for the extraction of the maximum power produced by the PV generators and the appropriate choice of the active filters to reduce the harmonic distortion rate to an acceptable value by the grid regulations for a decentralized generation. After synchronization of the system with the electrical grids, the voltage and current of the grid remain in phase. This means that the power factor is corrected. The results show that the system can reduce the harmonic distortion from 23.06% to 0.42% when the active power of the photovoltaic generators is injected into the electrical grids.

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Abbreviations

THD:

Total harmonic distortion

MPPT:

Maximum power point tracking

PVG:

Photovoltaic generators

IEEE:

Institute of electrical and electronics engineers

P&O:

Perturb and observe

PWM:

Pulse width modulation

PLL:

Phase-locked loop

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Author notes

  1. Kitmo, Guy Bertrand Tchaya and Noël Djongyang who equally contributed to this work.

Authors and Affiliations

  1. Department of Renewable Energy, National Advanced School of Engineering of University of Maroua, Maroua, Cameroon

    Kitmo, Guy Bertrand Tchaya & Noël Djongyang

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  1. Kitmo
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  2. Guy Bertrand Tchaya
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Correspondence to Kitmo.

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Kitmo, Tchaya, G.B. & Djongyang, N. Optimization of the photovoltaic systems on the North Cameroon interconnected electrical grid. Int J Energy Environ Eng 13, 305–317 (2022). https://doi.org/10.1007/s40095-021-00427-8

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  • DOI: https://doi.org/10.1007/s40095-021-00427-8

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