Series connected photovoltaic cells-modelling and analysis

AL TARABSHEH, Anas, AKMAL, Muhammad and GHAZAL, Mohammed (2017). Series connected photovoltaic cells-modelling and analysis. Sustainability (Switzerland), 9 (3), p. 371.

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Open Access URL: https://www.mdpi.com/2071-1050/9/3/371 (Published version)
Link to published version:: https://doi.org/10.3390/su9030371
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    Abstract

    As solar energy costs continue to drop, the number of large-scale deployment projects increases, and the need for different analysis models for photovoltaic (PV) modules in both academia and industry rises. This paper proposes a modified equivalent-circuit model for PV modules. A PV module comprises several series-connected PV cells, to generate more electrical power, where each PV cell has an internal shunt resistance. Our proposed model simplifies the standard one-diode equivalent-circuit (SEC) model by removing the shunt resistance and including its effect on the diode part of the circuit, while retaining the original model accuracy. Our proposed equivalent circuit, called here a modified SEC (MSEC), has less number of circuit elements. All of the PV cells are assumed operating under the same ambient conditions where they share the same electric voltage and current values. To ensure the simplification did not come at a reduction in the accuracy of the SEC model, we validate our MSEC model by simulating both under the same conditions, calculate, and compare their current/voltage (I/V) characteristics. Our results validate the accuracy of our model with the difference between the two models falling below 1%. Therefore, the proposed model can be adopted as an alternative representation of the equivalent circuit for PV cells and modules.

    Item Type: Article
    Uncontrolled Keywords: photovoltaic module; equivalent-circuit; current/voltage characteristics; 12 Built Environment And Design
    Identification Number: https://doi.org/10.3390/su9030371
    Page Range: p. 371
    SWORD Depositor: Symplectic Elements
    Depositing User: Symplectic Elements
    Date Deposited: 07 Feb 2019 13:31
    Last Modified: 07 Feb 2019 13:31
    URI: http://shura.shu.ac.uk/id/eprint/23066

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