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Designing a novel MPPT algorithm based on the extraterrestrial irradiance for photovoltaic energy generation systems and testing under partial shade conditions

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Abstract

Photovoltaic (PV) panels are widely used in the generation of electricity from solar radiation. To improve the efficiency of PV energy generation systems, the PV panels should operate at around the maximum power point (MPP), which can be provided by maximum power point tracking (MPPT) algorithms. In the present study, we designed a novel MPPT algorithm that has less complexity and low computation load than existing traditional MPPT algorithms and that starts to track near the MPP. The proposed algorithm takes extraterrestrial irradiances into account when defining operation points close to MPP. The MPP parameters were computed using datasheet information of the PV panel to achieve a low computation load. The proposed algorithm was tested for efficiency and performance under different scenarios, including partial shade conditions, against the Perturb & Observe (P&O) algorithm. The test results showed that the proposed algorithm outperformed the P&O algorithm.

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Abbreviations

DC:

Direct current

HC:

Hill climbing

INC:

Incremental conductance

MPP:

Maximum power point

MPPT:

Maximum power point tracking

P&O:

Perturb and observe

PV:

Photovoltaic

P:

Power

V:

Voltage

\(E_{n}\) :

Eccentricity correction factor

\(E_{h}\) :

Extraterrestrial irradiance on a horizontal plane

\(F_{f}\) :

Fill factor of the PV panel

\(G_{h}\) :

Global irradiance on a horizontal plane

\(h\) :

Time of day.

\(I_{{{\text{mpp}}}}\) :

PV current at the maximum power point

\(I_{sc} (\xi )\) :

Relative short circuit current

\(P_{{{\text{mpp}}}}\) :

PV power at the maximum power point

\(P_{\max }\) :

Typical maximum power of PV panel

\(P_{{{\text{tip}}}}\) :

Typical power of the PV panel

\(V_{{{\text{mpp}}}}\) :

PV voltage at the maximum power point

\(V_{oc} (\xi )\) :

Relative open-circuit voltage

\(\Delta \eta\) :

Relative efficiency of the PV panel

\(\xi\) :

Relative radiation intensity

\(\theta_{z}\) :

Zenith angle

\(\omega\) :

Hour angle of the sun

\(\delta\) :

Declination of the sun angle

\(\phi\) :

Latitude angle

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Acknowledgements

This study is supported by the Afyon Kocatepe University Scientific Research Projects Council under the 15.FEN.BİL.30 project.

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The authors have not disclosed any funding.

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Authors and Affiliations

  1. Electrical Engineering Department, Afyon Kocatepe University, A.N.S Campus, 03200, Afyonkarahisar, Turkey

    Said Mahmut Çınar, Sedat Bakım & Fatih Onur Hocaoglu

  2. Solar and Wind Research and Application Center, Afyon Kocatepe University, A.N.S Campus, 03200, Afyonkarahisar, Turkey

    Fatih Onur Hocaoglu

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  1. Said Mahmut Çınar
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  2. Sedat Bakım
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  3. Fatih Onur Hocaoglu
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Correspondence to Said Mahmut Çınar.

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Çınar, S.M., Bakım, S. & Hocaoglu, F.O. Designing a novel MPPT algorithm based on the extraterrestrial irradiance for photovoltaic energy generation systems and testing under partial shade conditions. J Comput Electron 21, 841–851 (2022). https://doi.org/10.1007/s10825-022-01906-9

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