3D simulation of complex shading affecting PV systems taking benefit from the power of graphics cards developed for the video game industry

Robledo, Jesús and Leloux, Jonathan and Lorenzo Pigueiras, Eduardo (2014). 3D simulation of complex shading affecting PV systems taking benefit from the power of graphics cards developed for the video game industry. In: "29th European Photovoltaic Solar Energy Conference and Exhibition (EU PVSEC 2014)", 22/09/2015 - 26/09/2015, Amsterdam, Netherlands. pp. 1-5.

Description

Title: 3D simulation of complex shading affecting PV systems taking benefit from the power of graphics cards developed for the video game industry
Author/s:
  • Robledo, Jesús
  • Leloux, Jonathan
  • Lorenzo Pigueiras, Eduardo
Item Type: Presentation at Congress or Conference (Article)
Event Title: 29th European Photovoltaic Solar Energy Conference and Exhibition (EU PVSEC 2014)
Event Dates: 22/09/2015 - 26/09/2015
Event Location: Amsterdam, Netherlands
Title of Book: 29th European Photovoltaic Solar Energy Conference and Exhibition (EU PVSEC 2014)
Date: 2014
Subjects:
Freetext Keywords: 3D, modeling, simulation, GPU, shading, losses, shadow mapping, solar, photovoltaic, PV, WebGL
Faculty: Instituto de Energía Solar (IES) (UPM)
Department: Otro
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

Shading reduces the power output of a photovoltaic (PV) system. The design engineering of PV systems requires modeling and evaluating shading losses. Some PV systems are affected by complex shading scenes whose resulting PV energy losses are very difficult to evaluate with current modeling tools. Several specialized PV design and simulation software include the possibility to evaluate shading losses. They generally possess a Graphical User Interface (GUI) through which the user can draw a 3D shading scene, and then evaluate its corresponding PV energy losses. The complexity of the objects that these tools can handle is relatively limited. We have created a software solution, 3DPV, which allows evaluating the energy losses induced by complex 3D scenes on PV generators. The 3D objects can be imported from specialized 3D modeling software or from a 3D object library. The shadows cast by this 3D scene on the PV generator are then directly evaluated from the Graphics Processing Unit (GPU). Thanks to the recent development of GPUs for the video game industry, the shadows can be evaluated with a very high spatial resolution that reaches well beyond the PV cell level, in very short calculation times. A PV simulation model then translates the geometrical shading into PV energy output losses. 3DPV has been implemented using WebGL, which allows it to run directly from a Web browser, without requiring any local installation from the user. This also allows taken full benefits from the information already available from Internet, such as the 3D object libraries. This contribution describes, step by step, the method that allows 3DPV to evaluate the PV energy losses caused by complex shading. We then illustrate the results of this methodology to several application cases that are encountered in the world of PV systems design. Keywords: 3D, modeling, simulation, GPU, shading, losses, shadow mapping, solar, photovoltaic, PV, WebGL

Funding Projects

TypeCodeAcronymLeaderTitle
FP7PV CROPSUnspecifiedUnspecifiedUnspecified

More information

Item ID: 36668
DC Identifier: http://oa.upm.es/36668/
OAI Identifier: oai:oa.upm.es:36668
Deposited by: Memoria Investigacion
Deposited on: 08 Dec 2015 10:16
Last Modified: 06 Jun 2016 10:16
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