A fully reconfigurable series-parallel photovoltaic module for higher energy yields in urban environments

RENEWABLE ENERGY

卷:179

Article

Calcabrini, Andres¹  Muttillo, Mirco¹  Weegink, Raoul¹  Manganiello, Patrizio¹  Zeman, Miro¹  Isabella, Olindo¹ 

[1] Delft Univ Technol, Dept Elect Sustainable Energy, Postbus 5031, NL-2600 GA Delft, Netherlands

关键词: Reconfigurable PV module;    Reconfiguration algorithm;    Urban PV;    Partial shading;    Shading tolerance;   

DOI  :  10.1016/j.renene.2021.07.010

来源: Elsevier

【 摘 要 】

Photovoltaic modules in the urban environment are very often exposed to uneven illumination conditions. The electrical interconnection between solar cells in a photovoltaic module limits the power that a solar module can generate under partial shading conditions. In this article, we introduce a PV module that is able to dynamically reconfigure the interconnection between its solar cells to minimise conduction and mismatch losses according to the irradiance distribution on its surface. Using an accurate simulation framework, it is determined that a reconfigurable PV module can generate over 12% more energy than a standard PV module with fixed topology and six bypass diodes, and as much energy as a fixed series-parallel module with six parallel strings, but at significantly lower currents. Simulation results are validated experimentally using a photovoltaic module with six reconfigurable blocks of cells controlled by a switching matrix on a high-performance solar flash simulator. (c) 2021 The Authors. Published by Elsevier Ltd. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/).

【 授权许可】

Free