Fault Identification in Crystalline Silicon PV Modules by Complementary Analysis of the Light and Dark Current-Voltage Characteristics
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14 SOLAR ENERGY↗
Engineering topics
Teodorescu, Remus
Publications and source records attributed to Teodorescu, Remus.
Temperature-Dependency Analysis and Correction Methods of in situ Power-Loss Estimation for Crystalline Silicon Modules Undergoing Potential-Induced Degradation Stress Testing
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14 SOLAR ENERGY↗
Quantifying Solar Cell Cracks in Photovoltaic Modules by Electroluminescence Imaging
This article proposes a method for quantifying the percentage of partially and totally disconnected solar cell cracks by analyzing electroluminescence images of the photovoltaic module taken under high- and low-current forward bias. The method is based on the analysis of the module's electroluminescence intensity distribution, applied at module and cell level. These concepts are demonstrated on a crystalline silicon photovoltaic module that was subjected to several rounds of mechanical loading and humidity-freeze cycling, causing increasing levels of solar cell cracks. The proposed method can be used as a diagnostic tool to rate cell damage or quality of modules after transportation. Moreover, the method can be automated and used in quality control for module manufacturers, installers, or as a diagnostic tool by plant operators and diagnostic service providers.
14 SOLAR ENERGY↗
Guest Editorial
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29 ENERGY PLANNING, POLICY, AND ECONOMY↗