Method of solar power prediction
Abstract
Techniques for estimating direct and diffuse sunlight reaching a location as a function of time using color whole sky images are provided. In one aspect, a method for forecasting solar insolation is provided that includes the steps of: obtaining color whole sky images using a digital camera which are taken at different times, and wherein an image of a solar disk is present in at least one of the color whole sky images; creating sky transparency images from the color whole sky images; determining atmospheric solar scattering based on a width of the solar disk in the color whole sky images; determining cloud motion trajectories from a time series of the sky transparency images; and calculating the solar insolation as a function of time using the sky transparency, the atmospheric solar scattering, and the cloud motion trajectories. A system for forecasting solar insolation is also provided.
- Inventors:
- Issue Date:
- Research Org.:
- International Business Machines Corp., Armonk, NY (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1459577
- Patent Number(s):
- 10007999
- Application Number:
- 15/233,412
- Assignee:
- International Business Machines Corporation (Armonk, NY)
- Patent Classifications (CPCs):
-
G - PHYSICS G06 - COMPUTING G06T - IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- DOE Contract Number:
- EE0006017
- Resource Type:
- Patent
- Resource Relation:
- Patent File Date: 2016 Aug 10
- Country of Publication:
- United States
- Language:
- English
Citation Formats
Hamann, Hendrik F., Klein, Levente, Lu, Siyuan, and van Kessel, Theodore G. Method of solar power prediction. United States: N. p., 2018.
Web.
Hamann, Hendrik F., Klein, Levente, Lu, Siyuan, & van Kessel, Theodore G. Method of solar power prediction. United States.
Hamann, Hendrik F., Klein, Levente, Lu, Siyuan, and van Kessel, Theodore G. Tue .
"Method of solar power prediction". United States. https://www.osti.gov/servlets/purl/1459577.
@article{osti_1459577,
title = {Method of solar power prediction},
author = {Hamann, Hendrik F. and Klein, Levente and Lu, Siyuan and van Kessel, Theodore G.},
abstractNote = {Techniques for estimating direct and diffuse sunlight reaching a location as a function of time using color whole sky images are provided. In one aspect, a method for forecasting solar insolation is provided that includes the steps of: obtaining color whole sky images using a digital camera which are taken at different times, and wherein an image of a solar disk is present in at least one of the color whole sky images; creating sky transparency images from the color whole sky images; determining atmospheric solar scattering based on a width of the solar disk in the color whole sky images; determining cloud motion trajectories from a time series of the sky transparency images; and calculating the solar insolation as a function of time using the sky transparency, the atmospheric solar scattering, and the cloud motion trajectories. A system for forecasting solar insolation is also provided.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2018},
month = {6}
}
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