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Geographic Dependence of the Solar Irradiance Spectrum at Intermediate to High Frequencies
https://oist.repo.nii.ac.jp/records/1139
https://oist.repo.nii.ac.jp/records/11391ac9a822-313f-4fed-b241-e6a6532d5d53
名前 / ファイル | ライセンス | アクション |
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PhysRevApplied.12.024032 (4.3 MB)
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Creative Commons Attribution 4.0 International (https://creativecommons.org/licenses/by/4.0/)
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Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2019-12-18 | |||||
タイトル | ||||||
言語 | en | |||||
タイトル | Geographic Dependence of the Solar Irradiance Spectrum at Intermediate to High Frequencies | |||||
言語 | ||||||
言語 | eng | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
資源タイプ | journal article | |||||
著者(英) |
Bel, Golan
× Bel, Golan× Bandi, M. M. |
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書誌情報 |
en : Physical Review Applied 巻 12, 号 2, p. 024032, 発行日 2019-08-16 |
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抄録 | ||||||
内容記述タイプ | Other | |||||
内容記述 | Temporal fluctuations in the solar irradiance are important for renewable-energy harvesting, as well as for climate and ecological-systems analysis. Environmental studies usually focus on slow fluctuations of the solar irradiance, assuming that fast fluctuations are averaged out, while studies of solar power generation emphasize the role of faster fluctuations, due to their effect on grid stability. Several analyses have reported a power-law dependence of the generated-power spectrum for frequencies ranging from 1/min to 1/year. However, both the origin of this power law and its geographic dependence are not fully understood, an issue of significance when one considers smoothing of solar-photovoltaic-power fluctuations by combining geographically distributed generation sources. Here we show that the power law appears in the global and direct components of the solar radiation and not only in the generated power. We also show that the exponent of the power law has a clear latitudinal dependence. At most locations, the spectral power-law dependence of the intermediate (1/day<f<1/h) frequencies is different from that of the high (f>1/h) frequencies. Using a simple model, we explain the origin of the power-law spectra and the latitudinal dependence. The implications of the power law for photovoltaic power generation and grid stability are discussed. We also suggest that the analysis of solar power generation should consider the power spectrum of the clear-sky irradiance at the location of interest in order to separate atmospheric effects from geographical ones. | |||||
出版者 | ||||||
出版者 | American Physical Society | |||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 2331-7019 | |||||
DOI | ||||||
関連タイプ | isIdenticalTo | |||||
識別子タイプ | DOI | |||||
関連識別子 | info:doi/10.1103/PhysRevApplied.12.024032 | |||||
権利 | ||||||
権利情報 | © 2019 American Physical Society | |||||
情報源 | ||||||
関連名称 | https://creativecommons.org/licenses/by/4.0/ | |||||
関連サイト | ||||||
識別子タイプ | URI | |||||
関連識別子 | https://journals.aps.org/prapplied/abstract/10.1103/PhysRevApplied.12.024032 | |||||
著者版フラグ | ||||||
出版タイプ | VoR | |||||
出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 |