Patent ID: 9217767
Filing Date: 2015-12-22
Classification: G01R,H02S,Y02E

Abstract:
1. A testing method of a solar cell panel including a plurality of given areas, the method comprising: (a) providing an ambient light with steady illumination to a whole surface of a solar cell panel to introduce a steady signal to an electrical output of the solar cell panel; (b) providing a modulation light to each one of the plurality of given areas of the solar cell panel to introduce a modulated signal to the electrical output of the respective given area of the solar cell panel, the modulation light being provided with the ambient light synchronously; and (c) analyzing electrical output of the solar cell panel to obtain electrical properties for each one of the plurality of given areas, wherein step (c) further comprises: (c1) determining the operation condition of the solar cell panel to obtain maximum rating power from the solar cell panel corresponding to the ambient light; (c2) demodulating the modulated signal; (c3) computing power conversion efficiency of the given area illuminated by the modulation light; and (c4) mapping a profile of the power conversion efficiency.