Accurate and rapid measurement of high-capacitance PV cells and modules using a single short pulse light

Some types of high-efficiency crystalline silicon PV technologies need longer time to accurately measure I–V curves due to the slow response caused by high-capacitance. We have already described in our previous paper ([1]) that we have developed a novel technology for I–V testers that can measure high-capacity solar cells and modules very accurately using a single short pulsed light (50ms). The pulsed light system has advantages over the continuous light system especially in module testing. Firstly, the system could be compact in size and far less expensive. Secondly, the maintenance is easy and its cost is far less. Thirdly, as it does not heat up the cell or the module, the temperature control is a lot easier. This paper describes the details of the method and proves its effectiveness.