A rapid method of estimating the solar irradiance spectra with potential lighting applications

A rapid method of estimating the solar irradiance spectra with potential lighting applications

Gao, Y. (TU Delft Photovoltaic Materials and Devices; TU Delft Beijing Delft Institute of Intelligent Science and Technology; State Key Laboratory of Solid State Lighting)
Dong, J. (TU Delft Beijing Delft Institute of Intelligent Science and Technology; State Key Laboratory of Solid State Lighting)
Isabella, O. (TU Delft Photovoltaic Materials and Devices)
Zeman, M. (TU Delft Electrical Sustainable Energy)
Zhang, G (TU Delft Electronic Components, Technology and Materials)

Electrical Sustainable Energy

2016

Diverse solar irradiance spectra can be observed under different conditions of time, date, location, weather, etc. Since the solar irradiance spectrum is required by certain scientific and engineering applications, obtaining accurate spectral data is essential. Measurements by spectrophotometers are able to achieve accurate real-time data with high resolution, but at high expense. While in some engineering applications, the requirements on accuracy and resolution are much lower than that in a typical scientific research. Therefore, a rapid method of estimating the solar spectrum is proposed based on an available spectral model in this paper. In order to achieve fast estimation, we simplify the input parameters of this model into five key inputs, including latitude and longitude, altitude, date and time, sky and ground type. The first three parameters are easy to obtain from GPS and the internet. Sky and ground types include common types of sky and ground, which can be input manually or processed automatically by analyzing a digital image of target sky or ground. The automatic input is realized through dominant color extraction or by training an artificial neural network. Results show that the proposed rapid method can generate different spectral power distributions based on distinct input conditions. Two device frameworks are also proposed to implement the rapid method, which is applicable to many fields. LED lighting is one of the most prominent applications. Users can easily share local sunlight with each other through an APP in mobile phones

http://resolver.tudelft.nl/uuid:b1686764-5a01-42cb-8d35-1b0b575a5f46

https://doi.org/10.1109/SSLCHINA.2016.7804358

2017-12-01

978-1-5090-5611-8

Proceedings of the 13th China International Forum on Solid State Lighting: SSLChina 2016, Beijing, China

13th China International Forum on Solid State Lighting, 2016-11-15 → 2016-11-17, Beijing, China

Institutional Repository

conference paper

© 2016 Y. Gao, J. Dong, O. Isabella, M. Zeman, G Zhang