Study on Hot-spot Simple Diagnosis System for PV Generation System
| Project/Area Number |
26420253
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Power engineering/Power conversion/Electric machinery
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| Research Institution | Kanagawa Institute of Technology |
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Principal Investigator |
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| Research Collaborator |
YATSUDA Yuji
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| Project Period (FY) |
2014-04-01 – 2017-03-31
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| Project Status |
Completed (Fiscal Year 2016)
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| Budget Amount *help |
¥4,940,000 (Direct Cost: ¥3,800,000、Indirect Cost: ¥1,140,000)
Fiscal Year 2016: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2015: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2014: ¥3,380,000 (Direct Cost: ¥2,600,000、Indirect Cost: ¥780,000)
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| Keywords | ホットスポット現象 / 太陽電池モジュール / 結晶欠陥 / ホットスポット / 簡易診断システム / O&M / 太陽電池パネル / プロジェクタ / 太陽光発電システム / SRC診断法 / 単結晶太陽電池 / 多結晶太陽電池 |
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| Outline of Final Research Achievements |
This study proposes a voltage-based hot-spot detection method for photovoltaic (PV) string using the projector. Hot-spots form in solar cells at defects causing a high carrier recombination rate, it appears as a high reverse leakage current of p-n junctions when solar cells are partially shadowed. Using this characteristic, we developed a voltage-based hot-spot detection method to quickly identify and characterize the severity of a module hot-spot for one module and plural modules in the string. From the experimental results, it is verified this proposed voltage-based hot-spot detection method works effectively for PV string in outdoor system.
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Report
(4 results)
Research Products
(10 results)
