Photovoltaic cell inspection flow chart

Can a light convolutional neural network detect photovoltaic cell defects in electroluminescence images?

We presented a novel approach using a light Convolutional Neural Network (CNN) architecture for automatic detection of photovoltaic cell defects in electroluminescence images. The proposed approach achieved state of the art results on first publicly available solar cell dataset of EL images.

Why is automatic defect detection important in photovoltaic (PV) field?

Automatic defect detection is gaining huge importance in photovoltaic (PV) field due to limited application of manual/visual inspection and rising production quantities of PV modules. This study is conducted for automatic detection of PV module defects in electroluminescence (EL) images.

How to declare a photovoltaic cell ready?

The humidity should not go beyond 65% per day and temperature should not exceed 25±5. Before you declare your photovoltaic cell ready, you need to carry out a mirror surface inspection. This step will help give you an assurance that the mirror of the solar panel is in a perfect condition.

How to ensure the quality of solar panels during production inspection?

One effective method is to conduct a during-production inspection. This quality check thoroughly inspects each panel’s materials, manufacturing process, and performance characteristics to ensure they meet the required standards. Ensuring the quality of solar panels during production inspection is important for multiple reasons:

What factors should be included in a solar panel inspection?

The inspection generally include factors such as: Visual Inspection: Visual inspection of solar panels include checking for visible defects, such as cracks, discolouration, scratches, or dents on the solar module, as well as any abnormalities in the framing or glass, junction box, and wiring.

How long does it take to inspect a solar cell?

However, this method has complexities in defect detection with more complex shapes due to shape assumption and it takes 0.29 s to inspect only one solar cell. Their study inspected only few defects such as small cracks, finger interruptions, and breaks. The study proposed defect detection technique based on independent component analysis.