Photovoltaic Module Electroluminescence Defect Detection Method and Defect Analysis

In response to problems such as traditional energy shortages and environmental damage, the sustainable photovoltaic new energy industry is ushering in rapid development. Crystalline silicon solar panels are an important component of photovoltaic power generation systems, and their quality determines the efficiency of photovoltaic power generation. With the development of the photovoltaic industry, traditional inspection of solar panel appearance and electrical performance is far from meeting industry needs. Based on electroluminescence theory (EL, Electroluminescence), this article introduces a daytime EL test method using a near-infrared camera to detect potential defects in crystalline silicon solar panels. At the same time, the causes are analyzed and summarized based on the defects found during the component testing process.