The main goal of the present work is to study the sensitivity of shading calculations under a "realistic" (quasi-continuous) radiance distribution model, as opposed to the "Standard" isotropic assumption. We are interested in the balance between the possible accuracy improvements vs the increased computational expense, assuming the shading calculation is coupled with an accurate electrical mismatch model and applied to large-scale PV systems. Two existing PV plants are modeled under three scenarios: (a) an isotropic 3D view-factor (b) a three-component model (with a horizon-brightening band); and (c) a continuous radiance distribution function modeled as a detailed (43 element) sky-tessellation. To estimate a metric of the sensitivity of the model, a cross comparison of numerical results for a small set of virtual PV plants with diverse configurations and climatic conditions is performed. Finally, indirect validation of the model is attempted by comparison of the simulation output to plant monitoring data, but the data quality and resolution turn out to be completely insufficient to reflect the subtlety of the diffuse shading effect.
European Photovoltaic Solar Energy Conference and Exhibition
year
2020
month
nov
pages
1311--1316
copyright
All rights reserved
isbn
978-3-936338-73-7
language
en
file
Herrerias A. et al_2020_Simulation of large PV plants using a continuous radiance distribution model.pdf:/home/martin/Dropbox/Biblioteca/ZotFile/Herrerias A. et al_2020_Simulation of large PV plants using a continuous radiance distribution model.pdf:application/pdf;Snapshot:/home/martin/Zotero/storage/3DEY2PFV/139107.html:text/html
%0 Conference Paper
%1 herrerias_azcue_simulation_2020
%A Herrerías Azcué, Martin
%A Capdevila, Hugo
%A Zhou, Huan
%A Hammer, Annette
%B European Photovoltaic Solar Energy Conference and Exhibition
%C online
%D 2020
%K mismatch photovoltaics radiance shading simulation transposition
%P 1311--1316
%T Simulation of Large PV Plants Using a Continuous Radiance Distribution Model and Cell-Resolution Mismatch Calculation
%U https://www.eupvsec-proceedings.com/
%X The main goal of the present work is to study the sensitivity of shading calculations under a "realistic" (quasi-continuous) radiance distribution model, as opposed to the "Standard" isotropic assumption. We are interested in the balance between the possible accuracy improvements vs the increased computational expense, assuming the shading calculation is coupled with an accurate electrical mismatch model and applied to large-scale PV systems. Two existing PV plants are modeled under three scenarios: (a) an isotropic 3D view-factor (b) a three-component model (with a horizon-brightening band); and (c) a continuous radiance distribution function modeled as a detailed (43 element) sky-tessellation. To estimate a metric of the sensitivity of the model, a cross comparison of numerical results for a small set of virtual PV plants with diverse configurations and climatic conditions is performed. Finally, indirect validation of the model is attempted by comparison of the simulation output to plant monitoring data, but the data quality and resolution turn out to be completely insufficient to reflect the subtlety of the diffuse shading effect.
%@ 978-3-936338-73-7
@inproceedings{herrerias_azcue_simulation_2020,
abstract = {The main goal of the present work is to study the sensitivity of shading calculations under a "realistic" (quasi-continuous) radiance distribution model, as opposed to the "Standard" isotropic assumption. We are interested in the balance between the possible accuracy improvements vs the increased computational expense, assuming the shading calculation is coupled with an accurate electrical mismatch model and applied to large-scale PV systems. Two existing PV plants are modeled under three scenarios: (a) an isotropic 3D view-factor (b) a three-component model (with a horizon-brightening band); and (c) a continuous radiance distribution function modeled as a detailed (43 element) sky-tessellation. To estimate a metric of the sensitivity of the model, a cross comparison of numerical results for a small set of virtual PV plants with diverse configurations and climatic conditions is performed. Finally, indirect validation of the model is attempted by comparison of the simulation output to plant monitoring data, but the data quality and resolution turn out to be completely insufficient to reflect the subtlety of the diffuse shading effect.},
added-at = {2021-07-31T14:03:56.000+0200},
address = {online},
author = {Herrerías Azcué, Martin and Capdevila, Hugo and Zhou, Huan and Hammer, Annette},
biburl = {https://puma.ub.uni-stuttgart.de/bibtex/28a44eb83cb5d7a1917fa4973e438bc9c/martinherrerias},
booktitle = {European {Photovoltaic} {Solar} {Energy} {Conference} and {Exhibition}},
copyright = {All rights reserved},
file = {Herrerias A. et al_2020_Simulation of large PV plants using a continuous radiance distribution model.pdf:/home/martin/Dropbox/Biblioteca/ZotFile/Herrerias A. et al_2020_Simulation of large PV plants using a continuous radiance distribution model.pdf:application/pdf;Snapshot:/home/martin/Zotero/storage/3DEY2PFV/139107.html:text/html},
interhash = {65b8c766ac53d4d4df4ded68dc9a259c},
intrahash = {8a44eb83cb5d7a1917fa4973e438bc9c},
isbn = {978-3-936338-73-7},
keywords = {mismatch photovoltaics radiance shading simulation transposition},
language = {en},
month = nov,
note = {ISSN: ISSN 2196-100X},
pages = {1311--1316},
timestamp = {2021-07-31T12:03:56.000+0200},
title = {Simulation of {Large} {PV} {Plants} {Using} a {Continuous} {Radiance} {Distribution} {Model} and {Cell}-{Resolution} {Mismatch} {Calculation}},
url = {https://www.eupvsec-proceedings.com/},
urldate = {2021-03-17},
year = 2020
}