Shading analysis for design of PV power plant

Annathurai, Vinodh (2015) Shading analysis for design of PV power plant. Project Report. Universiti Teknikal Malaysia Melaka, Melaka, Malaysia. (Submitted)

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Abstract

PV system is environment friendly which is designed to reduce consumption of electricity from non-renewable energy sources. However, the PV system is exposed to weather conditions causing declination in power generation efficiency. Shading of photovoltaic modules is a widespread phenomenon which affects the performances of the PV system. In accordance to it, this research aims to improve the shading factors which will affect the performances of photovoltaic (PV) system in the solar power plant. Shading of solar cells not only reduces the cell power PMPP, but also changes the open circuit voltage VOC, short circuit current ISC, fill factor and its efficiency. The objective of this research is to design a PV power plant with a low or zero shading factor. This report has classified the shading into two aspects; the distance between buildings to PV power plant and height of the building. The Solar Pro software is used to analyze the shading and identification of the suitable ways to minimize the shading factor. The data obtained from the simulation were compared with the Meteonorm software, journals and experiment for the validity of the data. The findings from this research will give a clear view of the height of the buildings and the exact distance from the PV power plant to achieve zero shading factor. The exact specific distance can be calculated using the multiplier of the height of the building. The multiplier of the height is varied with different size of the PV power plant.

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