Two FPGA-Oriented High-Speed Irradiance Virtual Sensors for Photovoltaic Plants

Knowing solar irradiance value allows an optimized management of photovoltaic (PV) power plants in terms of produced energy. Unfortunately, although sensing temperature is easy, the measurement of solar irradiance is expensive. In this paper, two circuit architectures for the estimation of the solar...

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Bibliographic Details
Published in:IEEE transactions on industrial informatics 2017-02, Vol.13 (1), p.157-165
Main Authors: Oliveri, Alberto, Cassottana, Luca, Laudani, Antonino, Riganti Fulginei, Francesco, Lozito, Gabriele Maria, Salvini, Alessandro, Storace, Marco
Format: Article
Language:English
Subjects:
Artificial neural networks
Circuits
Computer architecture
Federal agencies
Field programmable gate arrays
Field programmable gate arrays (FPGAs)
Irradiance
Mapping
neural networks (NNs)
photovoltaic (PV) power systems
Photovoltaic cells
piecewise linear techniques
Power plants
solar radiation
Temperature measurement
Temperature sensors
Training
Virtual sensors
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Summary:Knowing solar irradiance value allows an optimized management of photovoltaic (PV) power plants in terms of produced energy. Unfortunately, although sensing temperature is easy, the measurement of solar irradiance is expensive. In this paper, two circuit architectures for the estimation of the solar irradiance based on simple measurements are proposed. They are thought to be part of a centralized system implemented on field programmable gate array (FPGA) for sensing and monitoring of solar irradiance in a whole PV plant. The FPGA centralized architecture could allow for a real-time irradiance mapping by exploiting information coming from several low-cost measuring circuits suitably allocated on the PV modules. Validations on real irradiance data collected by the U.S. Department of Energy's National Renewable Energy Laboratory are presented.
ISSN:1551-3203
1941-0050
DOI:10.1109/TII.2015.2462293