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      Numerical calculation of series and shunt resistance of a photovoltaic cell using the Lambert W-function: Experimental evaluation

      Ghani, Faisal Abid; Duke, Mike; Carson, James K.
      DOI
       10.1016/j.solener.2012.11.002
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      Ghani, F., Duke, M., & Carson, J. (2013). Numerical calculation of series and shunt resistance of a photovoltaic cell using the Lambert W-function: Experimental evaluation. Solar Energy, 87, 246-253.
      Permanent Research Commons link: https://hdl.handle.net/10289/7234
      Abstract
      The values of series and shunt resistances play an important role in the modelling behaviour of a photovoltaic cell. The authors proposed in earlier work a new method to determine these values numerically at maximum power point using the Newton-Raphson method and equations based on the Lambert W-function. Here, an experimental investigation has been carried out to further validate this method and observe its behaviour over the entire current voltage curve. Current voltage curves from a single multi-crystalline cell were obtained under outdoor testing in Hamilton, New Zealand under three levels of illumination (800, 900, and 1000 W/m(2)). In addition to the method of Ghani and Duke (2011), two other methods were also used to calculate series and shunt resistances based on the parameters extracted from the experimental data. A comparative study of each methods output current vector using a root mean square error analysis revealed that greatest accuracy was achieved with the proposed approach.
      Date
      2013
      Type
      Journal Article
      Publisher
      Elsevier
      Collections
      • Science and Engineering Papers [3019]
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