Optimal displacement of photovoltaic array’s rows using a novel shading model
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Novas Castellano, Nuria; Gázquez Parra, José Antonio; Valls-Guirado, Juan; Manzano Agugliaro, Francisco RogelioFecha
2015-04-15Resumen
Photovoltaic energy has experienced tremendous growth in terms of implementation at facilities for power supply in rural areas and for energy dispatch to grid. The relative position of the fixed panels can present the problem of varying amounts of shadowing among them, which can reduce the overall energy produced from the array of photovoltaic panels on specific dates and times, in addition to the problems in each of the panels themselves. The existing methods calculate the distances between the rows of PV panels using a fixed height of the sun, such that the rays always strike perpendicular to the panels, thereby limiting the duration of solar gain to 4 h. This paper proposes a method that optimises the minimisation of the distance between the rows of fixed photovoltaic panels. The proposed method is based on the exact calculation of the shadows of the panels for the different positions of the sun, which depends on the latitude of the facility, throughout the course of the day and for...
Palabra/s clave
PV panel
Panel arrays
Photovoltaic
Shadow
Optimization
Sizing