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An improved model to predict thermal runaway in concentrator III–V multi-junction solar cells

Author

Listed:
  • Hui Lv
  • Wenjuan Huang
  • Chunfu Cheng
  • Yiwen Ou
  • Jun Liao
  • Yuehong Su
  • Saffa Riffat

Abstract

Thermal runaway is a serious problem leading to the sudden death of solar cells connected in parallel in concentrator photovoltaic (CPV) modules when those cells are not protected by string diodes. In this paper, an improved thermal runaway model is proposed with consideration of temperature dependence of external quantum efficiency (EQE), short-circuit current and diode behavior. Based on this model, the influence of key parameters, such as concentration ratio (CR), the number of solar cells connected in parallel, the shaded area of the solar cell, air mass and aerosol optical depth on the thermal runaway effect in CPV modules, has been analyzed. For a given CR, the maximum number of parallel-connected solar cells is determined in order to avoid the sudden death of the shaded solar cell.

Suggested Citation

  • Hui Lv & Wenjuan Huang & Chunfu Cheng & Yiwen Ou & Jun Liao & Yuehong Su & Saffa Riffat, 2018. "An improved model to predict thermal runaway in concentrator III–V multi-junction solar cells," International Journal of Low-Carbon Technologies, Oxford University Press, vol. 13(4), pages 432-437.
    • Handle: RePEc:oup:ijlctc:v:13:y:2018:i:4:p:432-437.
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    File URL: http://hdl.handle.net/10.1093/ijlct/cty043
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    Cited by:

    1. Zhezhi Liu & Hui Lv & Yue Hu & Jun Liao & Hang Zhou & Yuehong Su, 2021. "A review of modeling of luminescent coupling effect in multi-junction solar cell based on diode equation [III-V multijunction solar cells for concentrating photovoltaics]," International Journal of Low-Carbon Technologies, Oxford University Press, vol. 16(4), pages 1519-1528.

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