Method of solar power prediction
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.
- Issue Date:
- OSTI Identifier:
- 1459577
- Assignee:
- International Business Machines Corporation (Armonk, NY) DOEEE
- Patent Number(s):
- 10,007,999
- Application Number:
- 15/233,412
- Contract Number:
- EE0006017
- Resource Relation:
- Patent File Date: 2016 Aug 10
- Research Org:
- International Business Machines Corporation, Armonk, NY (United States)
- Sponsoring Org:
- USDOE
- Country of Publication:
- United States
- Language:
- English
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