A simple diagnosis system on site for solar power modules using pulse light

摘要

We have developed a simple and portable diagnosis system on site for solar power modules with step1, step2 to check modules and cells in them respectively. By the first step, we compound modules' IV curve using Isc and Voc data measured under flashlight to get modules' performance. By the second step, Isc of each cell in the modules is decided using a ND filter. The results by the first step for c-Si modules were compared with those obtained under a solar simulator to demonstrate the high potential of the system.