An Efficient and Simple Method for Modelling Solar Cells

Authors

  • Ali Kareem Abdulrazzaq
    Affiliation

    Department of Electron Devices, Faculty of Electrical Engineering and Informatics, Budapest University of Technology and Economics, Magyar tudósok körútja 2, H-1117 Budapest, Hungary; Department of Electrical and Electronics Engineering, Thi-Qar University, 64001 Nassiriya, P. O. B. 0535, Iraq

  • György Bognár
    Affiliation

    Department of Electron Devices, Faculty of Electrical Engineering and Informatics, Budapest University of Technology and Economics, Magyar tudósok körútja 2, H-1117 Budapest, Hungary

  • Balázs Plesz
    Affiliation

    Department of Electron Devices, Faculty of Electrical Engineering and Informatics, Budapest University of Technology and Economics, Magyar tudósok körútja 2, H-1117 Budapest, Hungary

https://doi.org/10.3311/PPee.14385

Abstract

Accurate and reliable PV device modelling is a fundamental tool to optimize system performance. The regular operation of the PV system in an outdoor condition implies the need for a model that relate the environmental effects. This paper presents a new, simple, and efficient method for constructing the I-V characteristics for a PV cell incorporating the environmental conditions. The proposed model is based on the idea of dividing the voltage axis of the solar cell I-V characteristics using a fixed time interval. For each voltage interval point, a two-dimensional current matrix is calculated, corresponding different irradiance conditions and temperatures. Polynomial surface fitting is used to build sub-models for each voltage interval. The current two-dimensional matrix, for each point, is calculated by two different methods. The first method is based on linear interpolation of the measured I-V curves. The second method uses pre-extracted five parameters for the well known single diode model at a wide range of environmental conditions. The developed modelling technique provides accurate results compared with the measured data for a mono-crystalline solar cell.

Keywords:

solar cell, I-V characteristics, single diode model

Published Online

2019-10-10

How to Cite

Abdulrazzaq, A. K., Bognár, G., Plesz, B. “An Efficient and Simple Method for Modelling Solar Cells”, Periodica Polytechnica Electrical Engineering and Computer Science, 64(1), pp. 40–46, 2020. https://doi.org/10.3311/PPee.14385

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Section

Articles