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In the PV generation systems, solar cell modules including crystal defect cells have the problem of abnormal heat generation when the cells are placed in shade. The authors have previously investigated the heating power at the crystal defect that cause these hot spots in detail. However, the crystal defects in these defective cells can also cause the cell’s heating power in areas other than the defective parts. Therefore, this paper investigates the characteristics of the cell’s heating power in relation to solar radiation intensity and the shade ratio. As a result, it should be noted that the cell heating power may be larger than the hot spot heating power, depending on the size of the shadow covering the cell.

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Analysis of Cell Heating Power in a Si Single Crystal PV Module with Hot Spot Cells

  • 会议论文

  • 发表日期：

    2026年

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  • Sho Kubota,
  • Chihiro Toishi,
  • Kazutaka Itako,
  • Tsugutomo Kudoh

摘要

In the PV generation systems, solar cell modules including crystal defect cells have the problem of abnormal heat generation when the cells are placed in shade. The authors have previously investigated the heating power at the crystal defect that cause these hot spots in detail. However, the crystal defects in these defective cells can also cause the cell’s heating power in areas other than the defective parts. Therefore, this paper investigates the characteristics of the cell’s heating power in relation to solar radiation intensity and the shade ratio. As a result, it should be noted that the cell heating power may be larger than the hot spot heating power, depending on the size of the shadow covering the cell.