| 摘要 |
The present invention relates to an apparatus and a method for measuring a contact resistance of a photovoltaic module which measure the contact resistance between a solar cell and a ribbon wire which is one of the factors affecting the output of the photovoltaic module. The contact resistance measuring apparatus of the photovoltaic module according to the present invention includes: the solar cell; Ag paste formed in a region on one surface of the solar cell; a plurality of fixing pins; the ribbon wire adhered to the region on one surface of the solar cell, in which the Ag paste is formed, using the fixing pins at predetermined distance and intervals; a measurement unit measuring resistance values of points corresponding to the fixing pins; and a control unit computing a linear graph according to the position of the ribbon wire based on the measured resistance values, computing a Y-intercept of the computed linear graph based on the computed linear graph, and computing a value corresponding to a half of the computed Y-intercept as the contact resistance value between the solar cell and the ribbon wire. |
