Analysis of Overcurrent Occurrence in Photovoltaic Modules With Overlapped By-Pass Diodes at Partial Shading

作者：Ziar Hesan; Nouri Mahmoud; Asaei Behzad; Farhangi Shahrokh^*

来源：IEEE Journal of Photovoltaics, 2014, 4(2): 713-721.

DOI：10.1109/JPHOTOV.2013.2292578

• Overcurrent
• overlapped by-pass diode
• partial shading
• photovoltaic (PV) module

This paper investigates the problem of overcurrent occurrence due to partial shading in photovoltaic (PV) modules with overlapped by-pass diodes. Although this configuration is less common in the photovoltaicmodule industry, but it behaves unusually and interestingly at partial shading. These types of modules produce overcurrent at some shading profiles. In this paper, the possibility of overcurrent occurrence is estimated for photovoltaic modules and arrays. The maximum value of overcurrent is also calculated. The theoretical outcomes are verified by experimental results. The results can be used as a suggestion for appropriate wiring system selection.

• 出版日期2014-3