A Simple Real-Time DMPPT Algorithm for PV Systems Operating under Mismatch Conditions

Aniruddha Kamath M.; Jayanta Biswas; Anjana K. G.; Mukti Barai

A Simple Real-Time DMPPT Algorithm for PV Systems Operating under Mismatch Conditions

Vol. 18, No. 3, pp. 826-840, May 2018

10.6113/JPE.2018.18.3.826

Maximum power point tracking (MPPT)

Photovoltaic (PV)

Solar energy

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Abstract

This paper presents a distributed maximum power point tracking (DMPPT) algorithm based on the reference voltage perturbation (RVP) method for the PV modules of a series PV string. The proposed RVP-DMPPT algorithm is developed to accurately track the maximum power point (MPP) for each PV module operating under all atmospheric conditions with a reduced hardware overhead. To study the influence of parameters such as the controller reference voltage (Vref) and PV current (Ipv) on the PV string voltage, a small signal model of a unidirectional differential power processing (DPP) based PV-Bus architecture is developed. The steady state and dynamic performances of the proposed RVP DMPPT algorithm and small signal model of the unidirectional DPP based PV-Bus architecture are demonstrated with simulations and experimental results. The accuracy of the RVP DMPPT algorithm is demonstrated by obtaining a tracking efficiency of 99.4% from the experiment.

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Cite this article

[IEEE Style]

A. K. M., J. Biswas, A. K. G., M. Barai, "A Simple Real-Time DMPPT Algorithm for PV Systems Operating under Mismatch Conditions," Journal of Power Electronics, vol. 18, no. 3, pp. 826-840, 2018. DOI: 10.6113/JPE.2018.18.3.826.

[ACM Style]

Aniruddha Kamath M., Jayanta Biswas, Anjana K. G., and Mukti Barai. 2018. A Simple Real-Time DMPPT Algorithm for PV Systems Operating under Mismatch Conditions. Journal of Power Electronics, 18, 3, (2018), 826-840. DOI: 10.6113/JPE.2018.18.3.826.