Definition of a Simple Index for the Spectral Characterization of Photovoltaic Systems |
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| Pedro Rodrigo, Eduardo Fernández |
- Abstract:
- The electrical output of a photovoltaic system is often related to the plane-of-array global irradiance and the cell operating temperature. However, the spectral distribution of the irradiance also influences the system electrical behavior, through its coupling with the spectral response of the photovoltaic material employed. Since early in the 1990s, many authors have evaluated the spectral performance of different types of semiconductors under real operating conditions worldwide. For this purpose, different methods and indexes have been proposed. In this paper, the fundamentals of the spectral characterization of the photovoltaic materials are introduced and 3 available spectral indexes are reviewed. The analysis of the advantages and disadvantages of these indexes leads to the definition of a simple index, which has never been used in the literature. This index, named as Spectral Average Useful Fraction, could be suitable for a quick spectral evaluation of a photovoltaic system with the only requirement of knowing the average incident spectrum of the site and the absorption limit of the photovoltaic material. An extensive comparison with the 3 available indexes should be carried out in order to assess the usefulness of the proposed index. This will be the object of future works.
- Keywords:
- photovoltaic materials, outdoor performance, spectral characterization, spectral index
- Download:
- IMEKO-TC19-2017-017.pdf
- DOI:
- -
- Event details
- IMEKO TC:
- TC19
- Event name:
- TC19 Symposium: Metrology on Environmental Instrumentation and Measurements
- Title:
7th EnvIMEKO "Nano systems & analytical nuclear measurements for pollution detection, energy sourcing, bio-sports functionalities, environment/human health and sustainable aggro-biotechnology"
- Place:
- Aguascalientes, MEXICO
- Time:
- 03 August 2017 - 04 August 2017