Solar irradiance now-casting with ramp-down event prediction via enhanced cloud detection and tracking

Hsu Yung Cheng, Chih Chang Yu

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

13 Scopus citations

Abstract

In this work, an accurate solar irradiance now-casting system is presented. The proposed system utilizes information from all-sky images to complement insufficient temporal and spatial resolution of satellite images and help improve prediction accuracy. Based on the history irradiance and the all-sky image features, irradiance are predicted ten to fifteen minutes ahead to allow Photovoltaics operators to schedule and allocate energy resources more effectively. To capture the relationship between clouds and the sun, an enhanced cloud detection algorithm using multi-scale neighborhood features is proposed. Then, feature points on the clouds are tracked to predict if the sun will be occluded by the clouds. According to the cloud tracking results, ramp-down events are forecasted and the predicted solar irradiance is refined. The proposed system is validated using a challenging dataset and exhibits superior performance compared with existing works.

Original languageEnglish
Title of host publication2016 IEEE International Conference on Multimedia and Expo, ICME 2016
PublisherIEEE Computer Society
ISBN (Electronic)9781467372589
DOIs
StatePublished - 25 Aug 2016
Event2016 IEEE International Conference on Multimedia and Expo, ICME 2016 - Seattle, United States
Duration: 11 Jul 201615 Jul 2016

Publication series

NameProceedings - IEEE International Conference on Multimedia and Expo
Volume2016-August
ISSN (Print)1945-7871
ISSN (Electronic)1945-788X

Conference

Conference2016 IEEE International Conference on Multimedia and Expo, ICME 2016
Country/TerritoryUnited States
CitySeattle
Period11/07/1615/07/16

Keywords

  • All-sky Image
  • Cloud Classification
  • Cloud Detection
  • Irradiance Now-casting
  • Tracking

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