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Influence of self-weight on electrical power conversion of dense-array concentrator photovoltaic system

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  • Tan, Ming-Hui
  • Chong, Kok-Keong

Abstract

New methodology of analyzing the influence of self-weight structural deflection towards the power conversion loss of dense-array concentrator photovoltaic (CPV) system has been formulated. As a case study, a three-dimensional mechanical model has been created based on the 23-m2 non-imaging dish concentrator (NIDC) prototype in which self-weight mechanical deflection and the consequent effect to the optical performance have been carried out at various elevation angles to determine the solar flux distributions. Finally, the overall power conversion of dense-array solar cells by taking into account of solar flux distribution has been simulated. For elevation angle of 60°, the energy variation and solar concentration ratio variation of solar flux distribution are 3.2% and 43% respectively as compared to ideal circumstance without self-weight deflection. The resulted maximum power conversion loss is 12.4%. The influence of self-weight on NIDC has significant impact to both the image distortion and pointing error of the solar flux distribution, which is one of major reasons to deteriorate the electrical power conversion of the CPV system.

Suggested Citation

  • Tan, Ming-Hui & Chong, Kok-Keong, 2016. "Influence of self-weight on electrical power conversion of dense-array concentrator photovoltaic system," Renewable Energy, Elsevier, vol. 87(P1), pages 445-457.
    • Handle: RePEc:eee:renene:v:87:y:2016:i:p1:p:445-457
    DOI: 10.1016/j.renene.2015.10.022
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    References listed on IDEAS

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    1. Siaw, Fei-Lu & Chong, Kok-Keong & Wong, Chee-Woon, 2014. "A comprehensive study of dense-array concentrator photovoltaic system using non-imaging planar concentrator," Renewable Energy, Elsevier, vol. 62(C), pages 542-555.
    2. Chong, K.K. & Siaw, F.L. & Wong, C.W. & Wong, G.S., 2009. "Design and construction of non-imaging planar concentrator for concentrator photovoltaic system," Renewable Energy, Elsevier, vol. 34(5), pages 1364-1370.
    3. Chong, Kok-Keong & Lau, Sing-Liong & Yew, Tiong-Keat & Tan, Philip Chee-Lin, 2013. "Design and development in optics of concentrator photovoltaic system," Renewable and Sustainable Energy Reviews, Elsevier, vol. 19(C), pages 598-612.
    4. Lin, Chih-Kuang & Dai, Chen-Yu & Wu, Jiunn-Chi, 2013. "Analysis of structural deformation and deformation-induced solar radiation misalignment in a tracking photovoltaic system," Renewable Energy, Elsevier, vol. 59(C), pages 65-74.
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    Cited by:

    1. Cameron, William James & Reddy, K. Srinivas & Mallick, Tapas Kumar, 2022. "Review of high concentration photovoltaic thermal hybrid systems for highly efficient energy cogeneration," Renewable and Sustainable Energy Reviews, Elsevier, vol. 163(C).
    2. Yan, Jian & Peng, YouDuo & Liu, YongXiang, 2023. "Optical performance evaluation of a large solar dish/Stirling power generation system under self-weight load based on optical-mechanical integration method," Energy, Elsevier, vol. 264(C).
    3. Jian, Yan & Peng, You Duo & Liu, Yong Xiang, 2022. "An optical-mechanical integrated modeling method of solar dish concentrator system for optical performance analysis under service load," Energy, Elsevier, vol. 261(PB).

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