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- Title
Optimal fixed reconfiguration scheme for PV arrays power enhancement under mutual shading conditions.
- Authors
Horoufiany, Majid; Ghandehari, Reza
- Abstract
Mutual shading (MS) in photovoltaic (PV) plants occurs when a collector is shadowed by the front row of collectors. The prevention of MS is considered in designing of the PV plants (PVPs). Perforce, this can be ignored in places with low maximum Sun elevation angle during some days and rows spacing limitations. In MS conditions, the reduction in energy and increase in the payback time of PV systems occur. In this study, a new optimal fixed reconfiguration scheme is presented for minimising of the MS effects. In this scheme, the physical locations of modules in a total cross‐tied (TCT) PV array are rearranged without altering the electrical interconnections. The presented scheme is able to minimise the MS effects independently from all shading parameters such as Sun position in the sky, latitude of PVP, and PV installation features. For this purpose, the MS pattern is initially determined and its features are explained. Then, an optimal physical arrangement is determined based on the aforementioned pattern. Minimisation of the resistance losses is also considered in the presented reconfiguration. Finally, the comparison of the optimal arrangement with the simple TCT and Sudoku arrangements is given in different conditions.
- Publication
IET Renewable Power Generation (Wiley-Blackwell), 2017, Vol 11, Issue 11, p1456
- ISSN
1752-1416
- Publication type
Article
- DOI
10.1049/iet-rpg.2016.0995