Memorias de investigación
Communications at congresses:
Triple-junction solar cell performance under Fresnel-based concentrators taking into account chromatic aberration and off-axis operation
Year:2012

Research Areas
  • Electronic technology and of the communications

Information
Abstract
Concentration photovoltaic (CPV) systems might produce quite uneven irradiance distributions (both on their level and on their spectral distribution) on the solar cell. This effect can be even more evident when the CPV system is slightly off-axis, since they are often designed to assure good uniformity only at normal incidence. The non-uniformities both in absolute irradiance and spectral content produced by the CPV systems, can originate electrical losses in multi-junction solar cells (MJSC). This works is focused on the integration of ray-tracing methods for simulating the irradiance and spectrum maps produced by different optic systems throughout the solar cell surface, with a 3D fully distributed circuit model which simulates the electrical behavior of a state-of-the-art triple-junction solar cell under the different light distributions obtained with ray-tracing. In this study four different CPV system (SILO, XTP, RTP, and FK) comprising Fresnel lenses concentrating sunlight onto the same solar cell are modeled when working on-axis and 0.6 degrees off-axis. In this study the impact of non-uniformities on a CPV system behavior is revealed. The FK outperforms other Fresnel-based CPV systems in both on-axis and off-axis conditions.
International
Si
Congress
CPV-8 Internation Conference on Concentrating Photovoltaic Systems
960
Place
Toledo
Reviewers
Si
ISBN/ISSN
978-0-7354-1086-2
http://dx.doi.org/10.1063/1.4753839
Start Date
16/04/2012
End Date
18/04/2012
From page
81
To page
84
AIP Conference Proceedings, Volume: 1477
Participants

Research Group, Departaments and Institutes related
  • Creador: Grupo de Investigación: Ingeniería Óptica
  • Centro o Instituto I+D+i: Centro de Domótica Integral, CEDINT