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Local parallel resistances of solar cell derived by the thermal image analysis

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  • Wiengmoon, Buntoon
  • Kirtikara, Krissanapong
  • Jivacate, Chaya
  • Chenvidhya, Dhirayut

Abstract

In this paper, local parallel resistances of solar cells are determined by using thermal imaging analysis data. The electrical measurement and thermal infrared measurement were done for twenty unused and non-encapsulated crystalline cells. The bulk resistance of each cell, i.e. a combination of series resistance and shunt resistance, is determined by its IV characteristic at standard test condition and IV characteristic in the dark. The thermal IR images of reverse biased solar cells are captured under dark conditions. Each cell is vertically hung in the temperature controlled chamber. The electrical–thermal model of a solar cell is proposed and its result is published for the first time. Based on a bulk electrical resistance of each cell, the four approaches to estimate local parallel resistance are presented. From the experimental results, it is found that the effective local parallel resistances calculated by thermal imaging analysis are correlated and comparable with measured resistance of the whole cells. For the best case, the resistance obtained from the local resistance measurements differs from the electrical bulk resistance less than 2%.

Suggested Citation

  • Wiengmoon, Buntoon & Kirtikara, Krissanapong & Jivacate, Chaya & Chenvidhya, Dhirayut, 2013. "Local parallel resistances of solar cell derived by the thermal image analysis," Renewable Energy, Elsevier, vol. 55(C), pages 49-54.
  • Handle: RePEc:eee:renene:v:55:y:2013:i:c:p:49-54
    DOI: 10.1016/j.renene.2012.12.018
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    References listed on IDEAS

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    1. Saetre, Tor Oskar & Midtgård, Ole-Morten & Yordanov, Georgi Hristov, 2011. "A new analytical solar cell I–V curve model," Renewable Energy, Elsevier, vol. 36(8), pages 2171-2176.
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    Cited by:

    1. Ma, Xun & Li, Ming & Peng, Ye & Sun, Linyao & Chen, Chuangye, 2022. "Development of thermo–electrical loss model for photovoltaic module with inhomogeneous temperature," Energy, Elsevier, vol. 248(C).
    2. Rajput, Pramod & Shyam, & Tomar, Vivek & Tiwari, G.N. & Sastry, O.S. & Bhatti, T.S., 2018. "A thermal model for N series connected glass/cell/polymer sheet and glass/cell/glass crystalline silicon photovoltaic modules with hot solar cells connected in series and its thermal losses in real ou," Renewable Energy, Elsevier, vol. 126(C), pages 370-386.

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